What are two things required for work to be done? Check all that apply.

• Force

• Distance

• Constant Speed

• Momentum

How much work is done in holding a 15 N sack of potatoes while waiting in line at the grocery store for 3 minutes?

• 15 J
• 45 J
• 0 J
• 5 J

If 150 Joules of work is needed to move a box 10 meters, what force was used? 

• 1500 N
• 15 N
• 1.5 N
• 150 N

How much work must be done to lift a 50 kg barbell 2.5 m above the floor?

• 125 J

• 300 J

• 3062.5 J

• 1225 J

At which point on the roller coaster is the kinetic energy at its maximum?

• A

• B

• C

• D

The units of work are

A dropped ball does not rebound to the same height as it was dropped. Where does the energy go? (Select all that apply!)

• Heat

• Sound

• The environment

• It is destroyed by hitting the ground

Two balls, a bowling ball and a baseball, are both traveling with a velocity of 10 m/s. Which ball has the greater kinetic energy?

• The bowling ball

• The baseball

• They have the same

• Neither has kinetic energy

Stored energy in the form of position or condition.

• potential energy

• kinetic energy

• momentum

• mechanical energy

What type of energy is in this picture?

• Kinetic
• Potential
• Chemical
• Sound