Potential Energy

Q. Which form of energy is possessed by a stretched rubber band?

1. Potential energy
2. Light energy
3. Sound energy
4. Kinetic energy

Q. An object a mass 1 kg is raised through a height `h’ from the ground. Its potential energy is increased by 1 J. Find the height `h’ .

1. 0.102 m
2. 0.105 m
3. 0.130 m
4. 0.110 m

Q.

Potential energy of an object lying on ground is zero

1. True
2. False

Q. A stretched bow possesses ______ energy.

1. kinetic
2. potential
3. heat
4. magnetic

Q.

Which of the following is an example of potential energy?

1. a book resting on a table
2. a moving car
3. both a and c
4. a battery

Q. Change in potential energy depends on the path taken by a body?

1. True
2. False

Q. Potential energy does not depend on shape of the body.

1. False
2. True

Q.

The potential energy of a hammer of mass $10\mathrm{kg}$, lifted to the height of $10\mathrm{m}$ is

Q.

A body of mass $2Kg$ is raised to $5m$.Find the work done.$\left(g=10m/s^2\right)$

(Hint:here work done=gravitational potential energy)

Q.

The potential energy of a body at rest is minimum when:

1. On the fourth floor of a building

2. On a rollercoaster

3. Placed on the ground

4. At an edge of a cliff

Q. Potential energy of your body is minimum, when___

1. you lie down on the ground.
2. you are standing.
3. you are sitting on a chair.
4. you are sitting on the ground.

Q.

An arrow pulled back by the string on the bow possesses:

1. No energy

2. Electrical energy

3. Kinetic energy

4. Potential energy

Q.

A man lifts a suitcase wighing 10 kg from the ground and puts it on his head 1.7 m above the ground. Calculate the work done by him on the suitcase.

1. 200 J

2. 150 J

3. 170 J

4. 180 J

Q.

State whether the statement is true or false:

Water stored in the dam will have kinetic energy.

1. True
2. False

Q.

A $50ki\log ram$ object is located $5metre$ above the ground level. Find its potential energy.

Q.

Define potential energy. And give its mathematical expression.

Q.

A stone rolls down an inclined plane. Midway during the motion, the stone has

1. only kinetic energy

2. only potential energy

3. both potential and kinetic energy

4. neither potential nor kinetic energy

Q.

An arrow fired from a bow attains a maximum height of $5m$ from the level it is released. If the mass of the arrow is $500grams$, work done by the bow on arrow is greater than which of the following? (Assume, $g=10m{s}^{-2}$)

1. 20J

2. 25J

3. 30J

4. 35J

Q. A horizontal spring is compressed.
What sort of energy does the compressed spring have?

1. electrical
2. potential
3. chemical
4. thermal

Q. The potential energy U of a particle varies with distance X from a fixed origin as U=AX/x+B where A and B are constants. The dimensions of AandB are respectively?

Q.

Sound is caused by the vibrations of the sound source.

1. True
2. False

Q.

The work done against gravity in shifting a baggage from the first floor of a building to the second floor is 100 J. The change in gravitational potential energy of the baggage is:

1. 50J

2. 100J

3. 200J

4. 400J

Q.

What kind of energy is possessed by the following?

Water is stored in the reservoir of a dam.

Q.

Which of the following does the potential energy of an object depend upon?

1. position of the object

2. shape of the object

3. Mass of the object

4. All of these

Q.

While drinking water, we lift a glass of water up to a certain height. Does the water in that glass also posses potential energy?

Q. A box is taken to same top by different stairs as shown, which relation holds good for potential energy of box in both cases?

1. Case 1 > Case 2
2. Case 1 < Case 2
3. Case 1 = Case 2
4. Information insufficient

Q.

A body of mass $6kg$ is kept at a height of $5m$ from the surface of earth. Find the potential energy of the body. Take $\left(g=10m{s}^{-2}\right)$

Q. Can a body processes energy even when it is not in motion? Explain your answer with an example

Q. Give one example of a body that has potential energy, in each of the following:
(i) due to its position, (ii) due to its state.

Q.

If the altitude of an object doubles, its potential energy will.

1. double

2. become 4 times

3. halve

4. remain the same