Physics

Grade-7

Easy

Question

# Kinetic energy is

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

Hint:

### The energy of a body due to its motion

## The correct answer is: The energy of a body due to its motion

### The kinetic energy of an object is the energy that it possesses due to its motion. It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity.

### Related Questions to study

Physics

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

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

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

PhysicsGrade-7

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

Physics

### What is the mass of the dark blue-colored car?

- 500 Kg
- 1000 Kg
- 1500 Kg
- 2000 Kg

### What is the mass of the dark blue-colored car?

PhysicsGrade-7

- 500 Kg
- 1000 Kg
- 1500 Kg
- 2000 Kg

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What is the value of the kinetic energy when the velocity of the object is

100 km/h for the green car (first graph from top)

- 1000 KJ
- 1100 KJ
- 1200 KJ
- 1300 KJ

What is the value of the kinetic energy when the velocity of the object is

100 km/h for the green car (first graph from top)

PhysicsGrade-7

- 1000 KJ
- 1100 KJ
- 1200 KJ
- 1300 KJ

Physics

### Which one of the two masses shown below has less kinetic energy when both have the same speed?

- 1 kg
- 4 kg
- None
- Both

### Which one of the two masses shown below has less kinetic energy when both have the same speed?

PhysicsGrade-7

- 1 kg
- 4 kg
- None
- Both

Physics

What is the value of the kinetic energy when the velocity of the object is

80 km/h for LIGHT blue car (second line from top)

- 500 KJ
- 600 KJ
- 700 KJ
- 800 KJ

What is the value of the kinetic energy when the velocity of the object is

80 km/h for LIGHT blue car (second line from top)

PhysicsGrade-7

- 500 KJ
- 600 KJ
- 700 KJ
- 800 KJ

Physics

### Which one of the two masses shown below has more kinetic energy when both have the same speed?

- 7 kg
- 12 kg
- Both
- None

### Which one of the two masses shown below has more kinetic energy when both have the same speed?

PhysicsGrade-7

- 7 kg
- 12 kg
- Both
- None

Physics

What is the value of the kinetic energy when the velocity of the object is

60 Km/h for the violet car (fourth line from top)

- 100 KJ
- 150 KJ
- 200 KJ
- 250 KJ

What is the value of the kinetic energy when the velocity of the object is

60 Km/h for the violet car (fourth line from top)

PhysicsGrade-7

- 100 KJ
- 150 KJ
- 200 KJ
- 250 KJ

Physics

### What can you say about the kinetic energy of the two bodies shown below when both have the same speed?

- KE
_{A}> KE_{B} - KE
_{A}< KE_{B} - KE
_{A }= KE_{B} - KE
_{A}≥ KE_{B}

### What can you say about the kinetic energy of the two bodies shown below when both have the same speed?

PhysicsGrade-7

- KE
_{A}> KE_{B} - KE
_{A}< KE_{B} - KE
_{A }= KE_{B} - KE
_{A}≥ KE_{B}

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

- 5KE
- 25KE

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

PhysicsGrade-7

- 5KE
- 25KE

Physics

### Which one of the two bodies shown below has less kinetic energy when both have the same speed?

- 5 kg
- 20 kg
- Both
- None

### Which one of the two bodies shown below has less kinetic energy when both have the same speed?

PhysicsGrade-7

- 5 kg
- 20 kg
- Both
- None

Physics

### Which one of the two bodies shown below has more kinetic energy when both have the same speed?

- 5 kg
- 15 kg
- Both
- None

### Which one of the two bodies shown below has more kinetic energy when both have the same speed?

PhysicsGrade-7

- 5 kg
- 15 kg
- Both
- None

Physics

### Which of the following statements is correct for the graph between kinetic energy and mass of the body?

- Starts from the origin
- Starts at a point on kinetic energy
- Starts at a point on the mass of the body
- None of the above

### Which of the following statements is correct for the graph between kinetic energy and mass of the body?

PhysicsGrade-7

- Starts from the origin
- Starts at a point on kinetic energy
- Starts at a point on the mass of the body
- None of the above

Physics

### What kind of graph is the graph between kinetic energy and mass of the body?

- Straight line
- Exponential
- Linearly going up
- Horizontal straight line

### What kind of graph is the graph between kinetic energy and mass of the body?

PhysicsGrade-7

- Straight line
- Exponential
- Linearly going up
- Horizontal straight line

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### As mass decreases, kinetic energy

- Increases
- Decreases
- Remains same
- Varies exponentially

### As mass decreases, kinetic energy

PhysicsGrade-7

- Increases
- Decreases
- Remains same
- Varies exponentially

Physics

### As mass increases, kinetic energy

- Increases
- Decreases
- Remains same
- Varies exponentially

### As mass increases, kinetic energy

PhysicsGrade-7

- Increases
- Decreases
- Remains same
- Varies exponentially