Physics

Grade-7

Easy

Question

# Direction : Is this an example of kinetic energy?

Stretched rubber band

- Yes
- No

Hint:

### No

## The correct answer is: No

### When you stretch a rubber band the energy transferred is stored in the form of potential energy. When elastic is stretched its loaded with potential energy while only when it is released there is a shift in kinetic energy.

A rubber band that is stretched has elastic potential energy, because when released, the rubber will spring back to its resting state, transferring the potential energy to kinetic energy in the process.

### Related Questions to study

Physics

### Direction : Is this an example of kinetic energy?

Motion of a meteor

- Yes
- No

### Direction : Is this an example of kinetic energy?

Motion of a meteor

PhysicsGrade-7

- Yes
- No

Physics

### Kinetic energy and velocity are related as

### Kinetic energy and velocity are related as

PhysicsGrade-7

Physics

### Kinetic energy and mass are related as

### Kinetic energy and mass are related as

PhysicsGrade-7

Physics

### Identify the correct formula for calculating kinetic energy.

- KE = 2mv

### Identify the correct formula for calculating kinetic energy.

PhysicsGrade-7

- KE = 2mv

Physics

### The SI unit of kinetic energy is ______.

- Kg m/s
- Kg m
^{2}/s - Kg m
^{2}/s^{2} - Kg s/m

### The SI unit of kinetic energy is ______.

PhysicsGrade-7

- Kg m/s
- Kg m
^{2}/s - Kg m
^{2}/s^{2} - Kg s/m

Physics

### Kinetic energy is defined as

- The energy of a body due to its motion
- The energy of a body due to its mass
- The energy of a body due to its position
- The energy of a body due to its shape

### Kinetic energy is defined as

PhysicsGrade-7

- The energy of a body due to its motion
- The energy of a body due to its mass
- The energy of a body due to its position
- The energy of a body due to its shape

Physics

### What is the new kinetic energy of a body of mass m, moving at a velocity, v, when its velocity becomes 5 v

- 5KE
- KE
- 25 KE

### What is the new kinetic energy of a body of mass m, moving at a velocity, v, when its velocity becomes 5 v

PhysicsGrade-7

- 5KE
- KE
- 25 KE

Physics

### What is the new kinetic energy of a body of mass m, moving at a velocity, v, when its velocity becomes v/3

- 3KE
- 9KE

### What is the new kinetic energy of a body of mass m, moving at a velocity, v, when its velocity becomes v/3

PhysicsGrade-7

- 3KE
- 9KE

Physics

### What is the new kinetic energy of a body of mass m, moving at a velocity, v, when its velocity becomes 3 v

- 3KE
- 9KE

### What is the new kinetic energy of a body of mass m, moving at a velocity, v, when its velocity becomes 3 v

PhysicsGrade-7

- 3KE
- 9KE

Physics

### Which of the bodies given below has more kinetic energy when mass is constant?

A) 3 m/s

B) 6 m/s

- 3m/s
- 6m/s
- Both A and B
- None

### Which of the bodies given below has more kinetic energy when mass is constant?

A) 3 m/s

B) 6 m/s

PhysicsGrade-7

- 3m/s
- 6m/s
- Both A and B
- None

Physics

### Velocity is ____ proportional to the kinetic energy.

- Directly
- Inversely
- Initially directly and then inversely
- Initially inversely and then directly

### Velocity is ____ proportional to the kinetic energy.

PhysicsGrade-7

- Directly
- Inversely
- Initially directly and then inversely
- Initially inversely and then directly

Physics

### What can you say about the kinetic energy when both have the same mass?

A) 2 m/s

B) m/s

- KE
_{A}≥ KE_{B}

### What can you say about the kinetic energy when both have the same mass?

A) 2 m/s

B) m/s

PhysicsGrade-7

- KE
_{A}≥ KE_{B}

Physics

### Which of the bodies given below has less kinetic energy when both have the same mass?

A) 3 m/s

B) 6 m/s

- A
- B
- A & B
- None

### Which of the bodies given below has less kinetic energy when both have the same mass?

A) 3 m/s

B) 6 m/s

PhysicsGrade-7

- A
- B
- A & B
- None

Physics

### Which of the bodies given below has more kinetic energy when both have the same mass?

A) 2 m/s

B) 3 m/s

- A
- B
- A & B
- None

### Which of the bodies given below has more kinetic energy when both have the same mass?

A) 2 m/s

B) 3 m/s

PhysicsGrade-7

- A
- B
- A & B
- None

Physics

### Which of the bodies given below has less kinetic energy when both have the same mass?

A) 1 m/s

B) m/s

- A
- B
- A & B
- None

### Which of the bodies given below has less kinetic energy when both have the same mass?

A) 1 m/s

B) m/s

PhysicsGrade-7

- A
- B
- A & B
- None