Question 1

What is the formula used to calculate work?

Accepted Answer

Work = Force x Distance

Answer

Energy = Force x Distance

Answer

Force = Work ÷ Distance

Answer

Power = Work ÷ Time

Question 2

Which of the following statements is true about power?

Accepted Answer

Power is the rate at which work is done.

Answer

Power is the force exerted on an object.

Answer

Power is always equal to energy.

Answer

Power is the total amount of energy used.

Question 3

What happens when the force exerted on an object does not cause it to move?

Accepted Answer

No work is done.

Answer

Energy is lost.

Answer

Some work is done.

Answer

More power is generated.

Question 4

Which unit is used to measure work in the International System of Units (SI)?

Accepted Answer

Joule

Answer

Meter

Answer

Watt

Answer

Newton

Question 5

How can you increase power when doing work?

Accepted Answer

By doing the same amount of work in less time.

Answer

By increasing the time taken.

Answer

By reducing the distance moved.

Answer

By using less force.

Question 6

When you push an object with a force and move it forward, what happens to your energy?

Accepted Answer

Some of your energy is transferred to the object.

Answer

Your energy remains the same.

Answer

All your energy is lost.

Answer

Your energy is converted to heat.

Question 7

What does it mean to say that energy is the ability to do work?

Accepted Answer

It means that energy can be used to exert a force that moves an object.

Answer

It means energy can be seen directly.

Answer

It means energy is only found in motion.

Answer

It means energy cannot cause change.

Question 8

If you do the same amount of work in a shorter amount of time, what happens to your power?

Accepted Answer

Your power increases.

Answer

Your power cannot be calculated.

Answer

Your power decreases.

Answer

Your power stays the same.

Question 9

What is the relationship between distance and work when moving an object?

Accepted Answer

Moving an object a greater distance requires more work than moving it a shorter distance.

Answer

Work is constant regardless of distance.

Answer

Distance has no effect on work done.

Answer

More distance means less work.

Question 10

Which of the following correctly describes force?

Accepted Answer

A push or pull exerted on an object.

Answer

The distance an object moves.

Answer

The energy used to create motion.

Answer

The rate at which work is done.

Question 11

What is the formula used to calculate work?

Accepted Answer

Work = Force x Distance

Answer

Energy = Work + Time

Answer

Power = Work ÷ Time

Answer

Power = Force x Distance ÷ Time

Question 12

What happens to the amount of work done if the distance an object is moved increases?

Accepted Answer

The amount of work increases

Answer

No work is done

Answer

The amount of work decreases

Answer

The amount of work stays the same

Question 13

How does power relate to work and time?

Accepted Answer

Power = Work ÷ Time

Answer

Power = Energy Transferred ÷ Time

Answer

Power = Force x Distance

Answer

Power = Work x Time

Question 14

What must happen for you to be doing work on an object?

Accepted Answer

The direction of the force and the direction of the motion must be the same

Answer

The object must move in the opposite direction of the force

Answer

The force must be greater than the weight of the object

Answer

The object must be at rest

Question 15

What is the SI unit of work?

Accepted Answer

Joule

Answer

Meter

Answer

Newton

Answer

Watt

Question 16

If you exert a force on an object but it does not move, are you doing work?

Accepted Answer

No, you are not doing work

Answer

Yes, but only a little

Answer

Yes, you are doing work

Answer

Only if the force is very strong

Question 17

What can you do to increase power while completing the same amount of work?

Accepted Answer

Do the work in less time

Answer

Use less force

Answer

Work at the same speed

Answer

Use more distance

Question 18

What is the relationship between energy and work?

Accepted Answer

Energy is required to do work

Answer

Energy cannot be used to do work

Answer

Work can be done without energy

Answer

Work is more important than energy

Question 19

Which of the following statements is true about force?

Accepted Answer

Force is a push or a pull exerted on an object

Answer

Force is the amount of energy used

Answer

Force causes objects to stay at rest

Answer

Force can only be applied in one direction

Question 20

What happens to energy when fuel burns?

Accepted Answer

It releases energy and changes into other substances

Answer

It disappears completely

Answer

It only creates heat and no other forms of energy

Answer

It turns into light only

Question 21

What is the formula used to calculate work?

Accepted Answer

Work = Force x Distance

Answer

Work = Power ÷ Time

Answer

Power = Work ÷ Time

Answer

Energy = Force x Distance

Question 22

Which of the following statements is true about power?

Accepted Answer

Power is the rate at which work is done

Answer

Power and energy are the same

Answer

Power does not involve time

Answer

Power only depends on force

Question 23

When are you actually doing work on an object?

Accepted Answer

When the direction of the force and the direction of the motion are the same

Answer

When you push as hard as you can

Answer

When the object is not moving

Answer

When the force is applied in any direction

Question 24

What happens to energy when fuel burns?

Accepted Answer

It changes into other substances and releases energy

Answer

It becomes solid

Answer

It only produces heat

Answer

It disappears completely

Question 25

What is the SI unit of work?

Accepted Answer

Joule

Answer

Meter

Answer

Watt

Answer

Newton

Question 26

How can you increase power while doing the same amount of work?

Accepted Answer

By doing the work in less time

Answer

By increasing the distance

Answer

By exerting more force

Answer

By using more energy

Question 27

What is required for motion to occur?

Accepted Answer

Energy

Answer

Friction

Answer

Gravity

Answer

Light

Question 28

If you push a stationary object but it does not move, are you doing work on it?

Accepted Answer

No

Answer

Only if you use a lot of force

Answer

Only if you push for a long time

Answer

Yes

Question 29

What effect does using more energy have on the speed of an object?

Accepted Answer

The object can move faster

Answer

The object will not move at all

Answer

The object will slow down

Answer

The object will remain stationary

Question 30

What formula can be used to calculate power?

Accepted Answer

Power = Work ÷ Time

Answer

Power = Force x Distance

Answer

Power = Work + Time

Answer

Power = Energy Transferred ÷ Time

Question 31

What is the relationship between work and energy?

Accepted Answer

Work is done when energy is transferred to move an object.

Answer

Work is done without any energy transfer.

Answer

Work and energy are the same thing.

Answer

Energy is always stored, not used.

Question 32

Which formula correctly represents power?

Accepted Answer

Power = Work ÷ Time

Answer

Power = Energy Transferred ÷ Time

Answer

Power = Force × Distance

Answer

Power = Work + Time

Question 33

When are you doing work on an object?

Accepted Answer

When the force you exert causes the object to move in the same direction.

Answer

When you only apply force but no distance is covered.

Answer

When you lift an object straight up without any movement.

Answer

When you push an object but it doesn't move.

Question 34

What is the SI unit for measuring work?

Accepted Answer

Joule

Answer

Meter

Answer

Watt

Answer

Newton

Question 35

How can you increase power when doing work?

Accepted Answer

By doing the same amount of work in less time.

Answer

By slowing down the speed at which you do the work.

Answer

By using less energy to do the work.

Answer

By doing more work in the same amount of time.

Question 36

What happens to energy when fuel burns?

Accepted Answer

It changes into other substances and releases energy.

Answer

It only produces heat and no other substances.

Answer

It disappears completely.

Answer

It turns into light without any change in substance.

Question 37

If you are trying to open a jar but the lid does not move, what can be said about the work you are doing?

Accepted Answer

You are not doing work on the jar.

Answer

You are doing work, but it's not effective.

Answer

You are doing work because you are applying force.

Answer

You are doing work, and the lid will eventually open.

Question 38

What determines the amount of work you do on an object?

Accepted Answer

The amount of force you exert and the distance the object moves.

Answer

The time it takes to move the object.

Answer

The speed at which you move the object.

Answer

The weight of the object only.

Question 39

What is the definition of motion?

Accepted Answer

The state in which an object's distance from another object is changing.

Answer

The act of doing work.

Answer

The storage of energy.

Answer

The ability to exert a force.

Question 40

What does it mean to say that energy is not visible?

Accepted Answer

You can see the effects of energy, but not energy itself.

Answer

Energy cannot be measured.

Answer

Energy is only found in physical objects.

Answer

Energy is always in the form of light.

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