Energy unit 1 quiz

The ability to do work or cause change is called __________.

• motion

• force

• work

• energy

The amount of work done on an object is found by multiplying __________.

• Force times Distance

• Force times Time

• Power times Efficiency

• Speed times Time

What is the unit of Power?

• J

• m/s

• watt

• N

What is the Unit of Work?

• J

• m/s

• watt

• N

The law of conservation of energy applies to:

• Energy transfers but not energy transformation

• Energy transformation but not energy transfers

• Both energy transfer and energy transformation

• Neither energy transfer not energy transformation

The energy when we eat food is ___________

• EMR

• Thermal energy

• Chemical energy

• Nuclear energy

A light plastic cart and a heavy steel cart are both pushed with the same force for a distance of 1.0 m, starting from rest. After the force is removed, the kinetic energy of the light plastic cart is ________ that of the heavy steel cart.

• greater than

• equal to

• less than

• can't say unless we know how big the force is

Four students run up the stairs in the time shown. Which student has the largest power output?

• A

• B

• C

• D

What is the unit for power?

• what

• watt

• joule

• Jewel-Osco

An object's change in position relative to a reference point.

• work

• force

• motion

• energy