Question 1

What is the formula for calculating work?

Accepted Answer

Work = Force x Distance

Answer

Work = Force / Distance

Answer

Work = Force + Distance

Answer

Work = Force - Distance

Question 2

What is the SI unit of work?

Accepted Answer

Joule

Answer

Foot-Pound

Answer

Watt

Answer

Newton

Question 3

How many joules of work are done when lifting a 50-pound ball four feet, after converting to SI units?

Accepted Answer

271 Joules

Answer

300 Joules

Answer

200 Joules

Answer

150 Joules

Question 4

What does energy represent?

Accepted Answer

The ability to do work

Answer

A physical object

Answer

A type of material

Answer

A unit of measurement

Question 5

What type of energy is stored due to position?

Accepted Answer

Potential Energy

Answer

Radiant Energy

Answer

Chemical Energy

Answer

Kinetic Energy

Question 6

What is the definition of power in physics?

Accepted Answer

The rate of doing work or using energy

Answer

The distance covered

Answer

The capacity of energy

Answer

The total work done

Question 7

What unit is used to measure power in the SI system?

Accepted Answer

Watt

Answer

Newton

Answer

Joule

Answer

Horsepower

Question 8

What happens to energy when it is converted to heat?

Accepted Answer

It is often considered lost

Answer

It becomes kinetic energy

Answer

It is stored for later

Answer

It increases in value

Question 9

Which of the following is a renewable energy source?

Accepted Answer

Wind energy

Answer

Coal

Answer

Uranium

Answer

Natural Gas

Question 10

In the example of lifting a ball, how is power calculated?

Accepted Answer

Power = Work / Time

Answer

Power = Work - Time

Answer

Power = Work x Time

Answer

Power = Work + Time

Question 11

What happens to energy during a transformation?

Accepted Answer

It can be changed from one form to another

Answer

It disappears

Answer

It loses all properties

Answer

It becomes heavier

Question 12

What type of energy is produced when you eat food?

Accepted Answer

Kinetic energy

Answer

Sound energy

Answer

Chemical energy

Answer

Radiant energy

Question 13

What is the relationship between work and energy?

Accepted Answer

They are equivalent; the amount of work done equals the amount of energy used.

Answer

Energy cannot do work

Answer

They are independent

Answer

Work is a type of energy

Question 14

How do you calculate power?

Accepted Answer

Work done divided by time taken

Answer

Force applied divided by distance

Answer

Energy lost per second

Answer

Distance moved per unit of time

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