Experiment 1: Exploring Charge with Scotch® Tape

In this experiment, you will observe the behavior of charged objects using pieces of Scotch® tape.

Materials

Scotch® Tape

Ruler

*Pen

*Flat Work Surface

Procedure

Part 1

1. Use the ruler to measure a piece of tape that is 10 cm long.

2. Tear the tape to remove the 10 cm piece from the roll.

3. Create a "handle" on one side of the piece of tape by folding down the piece of tape 1 cm from the end, leaving a 9 cm sticky piece with a 1 cm handle.

4. Stick the entire sticky surface of the tape to a table top, counter top, or another flat surface.

5. Repeat Steps 1 – 4 with a second 10 cm piece of tape. Stick the second piece of tape at least 15 cm away from the first piece on the same surface.

6. Quickly pull off both strips of tape from the surface and ensure that the pieces do not touch.

7. Carefully bring the non-sticky sides of the tape together and record observations about the behavior of the pieces in Table 1.

8. Discard the tape.

Part 2

1. Use the ruler to measure a piece of tape that is 10 cm long.

2. Tear the tape to remove the 10 cm piece from the roll.

3. Create a "handle" on one side of the piece of tape by folding down 1 cm of tape from one end.

4. Stick the entire sticky surface of the tape to a table top, counter top, or another flat surface.

5. Use a pen and write "B1" on the tape. "B" stands for bottom.

6. Repeat Steps 1 – 4 with a second 10 cm piece of tape. This time, press the second strip of tape on top of the one labeled "B1".

7. Use the pen to label the top piece with a "T1". "T" stands for top.

8. Create a second pair of pieces of tape by repeating Steps 1 – 7. This time, label the bottom piece "B2" and the top piece "T2".

9. Use the T1 handle to quickly pull off T1 strip of tape from the flat surface.

10. Use the B1 handle to peel off the bottom strip from the flat surface. Keep both B1 and T1 pieces away from each other.

11. Bring the non-sticky sides of B1 and T1 together and record observations about the behavior of the pieces in Table 1.

12. Set the pieces of tape, non-sticky side down, on the table approximately 15 cm away from each other. Do not stick them back on the table!

13. Repeat Steps 9 - 12 for B2 and T2.

14. Carefully bring the non-sticky sides of piece "T1" and "B2". Record observations about the behavior of the pieces in Table 1.

15. Set them back down, non-sticky side down.

16. Repeat Steps 14 - 15 for "T1" and "T2". Record your observations in Table 1.

17. Repeat Steps 14 - 15 for "B1" and "B2". Record your observations in Table 1.

18. Repeat Steps 14 and 15 for "T1" and the hair on your leg or arm. Record your observations in Table 1.

19. Repeat Steps 14 and 15 for "B1" and the hair on your leg or arm. Record your observations in Table 1.

Table 1: Electric Charge Observations

procedure

interacting pieces observation

Part 1 Two pieces on table Part 2 T1 / B1 T2 / B2 T1 / B2 T2 / B1 B1 / B2 T1 / Arm Hair B1 / Arm Hair ***The observation is filled.

Post-Lab Questions

1. Describe the interaction between the top and bottom strips as they relate to electric charge. Did the behavior of the pieces change when the tape was from different sets?

2. Describe the interaction between two top and two bottom pieces of tape as they relate to electric charge. Is this consistent with the existence of only two types of charge? Use your results to support your answer.

3. Did the top tape attract your arm hair? Did the bottom tape attract your arm hair? Usually arm hair is neutral; it has equal number positive and negative charges. Use this information to explain your results.

4. Which pieces of tape are positively charged? Which pieces of tape are negatively charged? Explain your reasoning.

5. Use your data to create a rule describing how like charges, opposite charges, and neutral bodies interact.

6. What do you observe about the force of attraction or repulsion when the pieces of tape are closer together and farther apart? Does this change happen gradually or quickly?

(105 N/m) x (0.1 m)  =  10.5 Newtons.

Answer:

(105 N/m) x (0.1 m) = 10.5 Newtons.

Explanation:

apex quiz

When light is transmitted through an object things can happen. The light could be reflected by the thing. Or it could be absorbed by the object. Saying this based on what I know.

The electric flux through the surface due to this charge is 3.39x10^5 Nm^2/C.

The electric flux through a closed surface is proportional to the amount of electric field passing through that surface. The electric field is a measure of the force exerted on a charged particle by the charged object. The electric field created by a point charge q at a distance r from it is given by the formula:

E = k*q/r^2

Where k is Coulomb's constant, which is equal to 9x10^9 Nm^2/C^2.

In this case, the charge q = 3 uC is located at the center of a sphere with radius r = 0.20 m. We need to calculate the electric flux through the surface of the sphere due to this charge.

The electric flux through a closed surface is given by the formula:

Φ = EAcos(θ)

Where Φ is the electric flux, E is the electric field, A is the area of the surface, and θ is the angle between the electric field and the normal to the surface.

In this case, the electric field at any point on the surface of the sphere is given by:

E = k*q/r^2

E = (9x10^9 Nm^2/C^2) * (3x10^-6 C) / (0.20 m)^2

E = 2.25x10^5 N/C

The area of the sphere is given by:

A = 4πr^2

A = 4π(0.20 m)^2

A = 0.5026 m^2

The angle between the electric field and the normal to the surface is 0 degrees since the electric field and the normal are in the same direction.

Therefore, the electric flux through the surface is:

Φ = EAcos(θ)

Φ = (2.25x10^5 N/C) * (0.5026 m^2) * cos(0 degrees)

Φ = 3.39x10^5 Nm^2/C

Therefore, 3.39x105 Nm2/C is the electric flux caused by this charge across the surface.

To learn more about Coulomb's law click:

brainly.com/question/506926

#SPJ4

This technique is often used in forensic science to identify inks used in forged documents or other types of evidence.

One method to separate a mixture of colored inks is chromatography. Chromatography is a physical separation technique used to separate mixtures based on their molecular properties. In the case of colored inks, paper chromatography is a commonly used technique.

In paper chromatography, a small amount of the ink mixture is spotted onto a piece of chromatography paper, and the paper is placed in a container with a small amount of solvent (e.g. water, alcohol, or acetone). The solvent moves up the paper by capillary action, carrying the ink mixture with it. As the solvent moves up the paper, different components of the ink mixture are separated and are visible as colored bands.

The separation occurs because different components of the mixture have different affinities for the paper and the solvent. Components that are more soluble in the solvent will move up the paper more quickly, while those that are more attracted to the paper will move up more slowly. This results in a separation of the components based on their physical and chemical properties.

By comparing the separated bands of the ink mixture to those of known pure inks, the identity of each component in the mixture can be determined. This technique is often used in forensic science to identify inks used in forged documents or other types of evidence.

To learn more about chromatography visit:

https://brainly.com/question/30907934

#SPJ11

A likely method to separate a mixture of colored inks is through chromatography, a technique used to separate components of a mixture. It separates the ink into its constituent colors by allowing a solvent to travel up a stationary phase like paper, carrying the ink mixture with it.

A method that would likely be used to separate a mixture of colored inks is chromatography. Chromatography is a method used in chemistry to separate components of a mixture. It works by using a stationary phase and a mobile phase. In the case of ink separation, the ink mixture would be placed on a stationary phase (like paper), and a solvent (the mobile phase) would be allowed to travel up the paper. As the solvent travels, it moves the mixture along its path. Each component of the ink by their size, chemical properties, and interaction with the solvent and paper will move at different rates, thereby separating the ink into its constituent colors. This method is particularly useful in analyzing the chemical composition of inks and other similar mixtures.

https://brainly.com/question/34281753

#SPJ12

The equation Jerry should use for the total resistance in a series circuit is R = R₁ + R₂ + R₃.

option A.

In a series circuit, all components are connected end-to-end, forming a single path for current flow.

A series circuit can contain any combination of resistors, capacitors, and inductors.

In a series circuit, the current flowing in each circuit component is the same  and the voltage drop in each circuit component is different.

Based on this, the total formula for the total resistance in a series circuit is given as;

R = R₁ + R₂ + R₃

where;

Learn more about series circuit here: https://brainly.com/question/19865219

#SPJ1

Answer:

sorry buh I don't get the question

The velocity of the ball before and after collision as V₁ = 41m/s and V₂ = 37m/s respectively, and the mass of the ball as m.The velocity of the bat = 37m/s (opposite direction to the ball). Therefore, the relative velocity of the ball with respect to the bat, V = V₁ - V₂= 41 - 37 = 4 m/s.The coefficient of restitution (e) is defined as the ratio of the relative velocity of separation to the relative velocity of approach.e = V₂’ - V₁’ / V₁ - V₂, where V₂’ and V₁’ are the velocities of the ball and bat after collision.e = V₂’ / V₁ = (77 - 0.11m) / 37, V₂’ = (77 - 0.11m)  37 / 37 = 77 - 0.11m.

The velocity of the ball is u(m) = 77 - 6.87/m + 0.11m/s.Understanding:

Calculation:

Interpretation:

A ball with higher velocity can travel farther when hit with a bat. Therefore, it is always an advantage to use a heavier ball.u’(0.9) = 8.81 m⁻²/s, u’(1.5) = 5.60 m⁻²/sRate of increase of speed is u’(m).Answer:u’(0.9) ≈ 8.81 m⁻²/s, u’(1.5) ≈ 5.60 m⁻²/s.The rate at which this speed is increasing is u’(m).

Velocity is a foreign term that means speed. Speed ​​is the locking of an object every single unit of time. Acceleration or acceleration is the change in velocity in a certain unit of time. The acceleration of an object is caused by a force acting on the object, as explained in Newton's second law. The SI unit for acceleration is meters per second squared (m s−2). What is the difference between speed and pace? Velocity or speed is the quotient between the distance traveled and the time interval. Velocity or speed is a scalar quantity. Speed ​​​​or speed is the result of separation with an interval. Speed ​​or velocity is a vector quantity.

Learn More About Velocity at https://brainly.com/question/29523095

#SPJ11

ANSWER:

a. AB

STEP-BY-STEP EXPLANATION:

The greatest distance occurs when the speed is increasing and also takes less time to reach that speed.

According to the graph, the highest speed is 8 m/s and it reaches it in 3 seconds, therefore, it is where the greatest distance is given.

Therefore, the segment of greater distance is the segment AB

Answer:

1875 J

Explanation:

kinetic energy= \(\frac{1}{2}\)×mass×velocity²

K.E=\(\frac{1}{2}\)mv²

K.E=\(\frac{1}{2}\)×150×5.0²

K.E= 1875 J

Answer:

Explanation:

Fill the graduated cylinder partially with water to a level where you can submerge the object and drop the sinker weight into the water. If you don't have a graduated cylinder to fit your object, put a cylinder in a basin, fill it to the top with water and measure the overflow into the basin. Your answer will be less accurate because of the number of times the water has been moved. Note the amount of displacement in milliliters (ml) caused by the sinker and string.

Measure the mass of your object (say a cork) on a balance scale in grams (g). Be sure the object is dry when it is measured. Record its weight. Attach the sinker with the string to the object. If you use a staple or pin, be sure to include that when you measure the displacement of the sinker in step one.

The magnitude of the hailstone's acceleration in the water is approximately 153.57 meters/second^2, which is not one of the provided options.

To calculate the magnitude of acceleration, we can use the formula:

acceleration (a) = (change in velocity) / time

Given that the hailstone comes to a virtual stop, its final velocity (vf) in the water is 0 m/s. The initial velocity (vi) is 43 m/s, and the time taken (t) is 0.28 seconds.

The change in velocity is calculated as:

change in velocity = vf - vi = 0 - 43 = -43 m/s

Substituting the values into the formula:

acceleration (a) = (-43 m/s) / (0.28 s)

Simplifying the expression:

acceleration (a) ≈ -153.57 m/s^2

Since acceleration is a vector quantity, the magnitude of the acceleration is always positive. Therefore, we take the absolute value:

magnitude of acceleration ≈ | -153.57 m/s^2 | ≈ 153.57 m/s^2

learn more about acceleration here:

https://brainly.com/question/2303856

#SPJ11

Answer:

Explanation:

The Law of Momentum Conservation applies and its equation is:

\([(m_1v_1)+(m_2v_2)]_b=[(m_1v_1)+(m_2v_2)]_a\) and filling in and solving for v2:

\([(3.0*2.0)+(1.0*-2.0)]_b=[(3.0*0)+(1.0v_2)]_a\) and

6.0 - 2.0 = 0 + 1.0v₂ and

4.0 = v₂ in the initial direction of the 3.0 kg ball (since the velocity of the 3.0 kg ball is positive and the velocity of the 1.0 kg ball is negative and our answer is positive).

The collision between block X of mass 2 kg and block Y (of unknown mass) is an elastic collision. It is given that block X is traveling across a horizontal surface towards block Y, which is initially at rest. Also, block X and block Y are made of the same material. The position as a function of time graph for block X is also provided.

.Prediction 1: The acceleration of block Y immediately after the collision is greater than the acceleration of block Y immediately before the collision.This prediction is not true as the acceleration of block Y after the collision will be less than the acceleration of block Y before the collision. The reason is that block Y initially is at rest and then has to gain some speed. So, the acceleration of block Y after the collision is less than the acceleration of block Y before the collision.

Prediction 2: The kinetic energy of block Y immediately after the collision is greater than the kinetic energy of block X immediately after the collision.This prediction is not true as the collision is an elastic collision. In an elastic collision, kinetic energy is conserved, meaning the total kinetic energy before the collision is equal to the total kinetic energy after the collision. Thus, the kinetic energy of block Y immediately after the collision cannot be greater than the kinetic energy of block X immediately after the collision.

Prediction 3: The change in momentum of block Y from immediately before the collision to immediately after the collision is more than the change in momentum of block X.This prediction is true. In an elastic collision, both momentum and kinetic energy are conserved. So, the change in momentum of block Y will be more than the change in momentum of block X.

Prediction 4: The momentum of the system consisting of block X and block Y immediately after the collision is less than the momentum of the system immediately before the collision.This prediction is not true as momentum is conserved in an elastic collision. The momentum of the system consisting of block X and block Y immediately after the collision will be the same as the momentum of the system immediately before the collision.

Therefore, the prediction that is correct about the motion of block Y immediately after the collision is: The change in momentum of block Y from immediately before the collision to immediately after the collision is more than the change in momentum of block X.

To know more about kinetic energy visit:

https://brainly.com/question/8101588

#SPJ11

Answer:

Explanation: Heat  required will be 10800 cal

Given Data:

Mass, m = 20g

Temperature, T = 100⁰ C

Specific latent heat of vaporization of water =  \(540\,cal/g\)

Heat is given by,

H = m× \(L_{v}\)

H = 20g × \(540\,cal/g\)

H = 10800 cal

Answer Maybe try 400

Explanation:

Multiply

Answer:

16 Newtons

Explanation:

The equation for work is Joules = Force x Distance(Meters). Substituting in the values leaves us with 80 = F * 5. Evaluating this equation, we can conclude that the amount of force used was in fact 16 Newtons.  

Answer:

Explanation:

perfect drawing

Answer:

D = 14.31 m

Explanation:

It is given that,

Displacement due east is 12 m

Displacement due north is 5 m

Displacement in vertically upward direction is 6 m

We need to find the magnitude of the sum of these displacements. We know that, vertically upward, east and north are mutually perpendicular direction. So, the resultant is given by :

\(R=\sqrt{12^2+5^2+6^2} \\\\R=\sqrt{144+25+36} \\\\R=14.31\ m\)

So, the magnitude of the sum of these displacements is 14.31 m.

The electron configuration of an atom refers to the arrangement of electrons in the energy levels or orbitals around the nucleus. It provides information about the distribution of electrons in an atom and is based on the Aufbau principle. The electron configuration is written using a notation that includes the energy level, sublevel, and the number of electrons in that sublevel.

The electron configuration of an atom refers to the arrangement of electrons in the energy levels or orbitals around the nucleus. Electrons occupy specific energy levels or shells, and each energy level can hold a certain number of electrons. The electron configuration provides information about the distribution of electrons in an atom, including the number of electrons in each energy level and the arrangement of electrons within each level.

The electron configuration is based on the Aufbau principle, which states that electrons fill the lowest energy levels first before moving to higher energy levels. The energy levels are labeled as 1, 2, 3, and so on, with the first energy level closest to the nucleus. Each energy level can hold a specific number of electrons: the first level can hold a maximum of 2 electrons, the second level can hold a maximum of 8 electrons, the third level can hold a maximum of 18 electrons, and so on.

Within each energy level, there are sublevels or orbitals. The sublevels are labeled as s, p, d, and f. The s sublevel can hold a maximum of 2 electrons, the p sublevel can hold a maximum of 6 electrons, the d sublevel can hold a maximum of 10 electrons, and the f sublevel can hold a maximum of 14 electrons.

The electron configuration is written using a notation that includes the energy level, sublevel, and the number of electrons in that sublevel. For example, the electron configuration of carbon (atomic number 6) is 1s2 2s2 2p2. This means that carbon has 2 electrons in the 1s sublevel, 2 electrons in the 2s sublevel, and 2 electrons in the 2p sublevel.

About electron configuration here:

https://brainly.com/question/29157546

#SPJ11

The electron configuration provides a systematic way to understand and predict the chemical properties and behavior of atoms, as it determines the atom's reactivity, bonding capabilities, and overall electronic structure.

The electron configuration of an atom refers to the arrangement of electrons within its atomic orbitals. Electrons occupy specific energy levels and sublevels around the nucleus of an atom, and the electron configuration describes the distribution of electrons among these orbitals. It provides information about the organization of electrons, their energy states, and their overall stability within an atom.

The electron configuration follows a set of principles and rules, including the Aufbau principle, Pauli exclusion principle, and Hund's rule. The Aufbau principle states that electrons fill the lowest energy levels first before moving to higher energy levels. The Pauli exclusion principle states that each orbital can accommodate a maximum of two electrons with opposite spins. Hund's rule states that when multiple orbitals of the same energy level are available, electrons prefer to occupy separate orbitals with parallel spins.

The electron configuration is represented using a notation that includes the principal quantum number (n), which represents the energy level, along with the letter(s) representing the sublevel (s, p, d, f) and the superscript indicating the number of electrons in that sublevel. For example, the electron configuration of carbon is 1s² 2s² 2p², indicating that carbon has two electrons in the 1s orbital, two electrons in the 2s orbital, and two electrons in the 2p orbital.

Know more about Atoms here:

https://brainly.com/question/1566330

#SPJ11

Answer:

75

Explanation:

Here,

Hypotenuse (h)= X

base (b)= 72

perpendicular(p)=21

Now, h2=P2 + B2

x2 = (21×21) + (72×72)

x2= 441 + 5184

x2= 5625

X= √ 5625

X= 75

Answer:

80%

Explanation:

The thermal energy output by the oven is 800 J which is the useful energy that can be utilized for cooking.

The electrical energy input to the oven is 1000 J.

The efficiency of the oven =

(Useful energy output)/(Total energy input to the oven) x 100

\(=\frac{800}{1000}\times 100= 80\%\)

Hence, the efficiency of the oven is 80%.

To solve this problem, we need to use the equation for the acceleration of an electron in an electric field:

a = eE/m

Where a is the acceleration, e is the charge of the electron, E is the electric field strength, and m is the mass of the electron.

In this case, we know that the distance between the plates is 25 cm, so the electric field strength can be calculated as:

E = V/d = 5000/0.25 = 20000 V/m

Now we can calculate the acceleration of the electron:

a = (1.6 x 10^-19 C) x (20000 V/m) / (9.11 x 10^-31 kg) = 3.53 x 10^14 m/s^2

Next, we need to use the equations of motion to find the velocity of the electron when it reaches the opposite plate. Since the electron starts at rest, we can use the following equation:

v^2 = u^2 + 2as

Where v is the final velocity, u is the initial velocity (which is zero), a is the acceleration we just calculated, and s is the distance between the plates (25 cm = 0.25 m).

Substituting in the values, we get:

v^2 = 0 + 2 x (3.53 x 10^14 m/s^2) x 0.25 m = 4.41 x 10^14 m^2/s^2

Taking the square root of both sides gives us:

v = 2.10 x 10^7 m/s

So the velocity of the electron when it hits the opposite plate is approximately 21 million meters per second.
Hi! To find the velocity of the electron when it hits the opposite plate, we need to consider the electric potential difference (5000 V), the distance between the plates (25 cm), and the charge and mass of the electron.

First, convert the distance to meters: 25 cm = 0.25 m.

Next, use the formula for electric potential energy: PE = qV, where PE is potential energy, q is the charge of the electron, and V is the electric potential difference.

For an electron, q = -1.6 x 10^-19 C. Therefore, PE = (-1.6 x 10^-19 C)(5000 V) = -8 x 10^-16 J.

Since the electron starts at rest, all its potential energy will be converted to kinetic energy: KE = (1/2)mv^2, where m is the mass of the electron, and v is its velocity.

The mass of an electron is 9.11 x 10^-31 kg. Equating potential energy to kinetic energy:

-8 x 10^-16 J = (1/2)(9.11 x 10^-31 kg)v^2.

Solve for v: v = sqrt((-2 * 8 x 10^-16 J)/(9.11 x 10^-31 kg)) ≈ 1.32 x 10^7 m/s.

So, the electron's velocity when it hits the opposite plate is approximately 1.32 x 10^7 m/s.

To know more about electron velocity, click this link-

brainly.com/question/30736754

#SPJ11

Explanation:

Answer:

d = 4.425 x 10⁻⁶ m = 4.425 μm

Explanation:

The charge on plates can be given as:

\(q = \sigma A=CV\\where,\\\\C = Capacitance\ of\ parallel\ plate\ capacitor = \frac{\epsilon_oA}{d}\\\\therefore,\\\\\sigma A=(\frac{\epsilon_oA}{d})V\\\\d = (\frac{\epsilon_o}{\sigma})V\)

where,

d = spacing between plates = ?

ε₀ = Permitivity of free space  = 8.85 x 10⁻¹² C²/Nm²

σ = surface charge density = (30 nC/cm²)(10⁻⁹ C/1 nC)(1 cm²/10⁻⁴ m²)

σ = 3 x 10⁻⁴ C/m²

V = Potential Difference = 150 V

Therefore,

\(d = \frac{(8.85\ x\ 10^{-12}\ C^2/Nm^2)}{3\ x\ 10^{-4}\ C/m^2}(150\ V)\\\)

d = 4.425 x 10⁻⁶ m = 4.425 μm

Explanation:

d = v t

= 30 × 60

= 1800 m

Hence,

The distance covered by a car with a constant speed of 30 m/s in 60 s is 1800 m.

The amount of work a machine can do because of an object's kinetic and potential energy is called mechanical energy. Mechanical energy is the sum of an object's kinetic energy, which is the energy due to its motion, and its potential energy, which is the energy it possesses because of its position or condition.

To understand this concept, let's consider an example. Imagine a roller coaster on top of a hill. As the roller coaster starts moving down the hill, its potential energy decreases because it is losing height. However, its kinetic energy increases because it is gaining speed. At the bottom of the hill, the roller coaster has minimal potential energy but maximum kinetic energy.

The total mechanical energy of the roller coaster remains constant throughout the ride, demonstrating the conservation of energy. This principle applies to other machines as well, such as a pendulum or a swinging door. By understanding and utilizing the mechanical energy of objects, machines can perform useful work.

In summary, the amount of work a machine can do due to an object's kinetic and potential energy is known as mechanical energy. It encompasses both the object's motion-related energy and its position-related energy.

To know more about kinetic energy visit:

https://brainly.com/question/999862

#SPJ11

In that amount of time and constant speed, the car will travel 3.75 miles.

First we need to find the car's travel distance or velocity per minute in order to calculate how far it will go in 5 minutes. This can be done by subtracting 2.625 miles from 3.5 minutes, which gives us the answer of 0.75 miles per minute for the car's rate of travel. Because of this, the distance that the car will go in five minutes is equal to 0.75 miles per minute multiplied by the number of minutes, which is equal to 3.75 miles.

To learn more about constant speed, click here:

https://brainly.com/question/14703216

#SPJ4

Answer:1.36078

Explanation: