Force and Energy Review

When is the potential energy the greatest in a roller coaster?

• a. at the bottom of the first hill
• b. at the top of the first hill
• c. at the top of the second hill
• d. at the bottom of the second hill

The ability to do work

• A. chemical energy

• B. Friction

• C. electrical energy

• D. Energy

Where is the potential energy the greatest?

• A
• B
• C
• D

Roger Federer’s tennis ball has a mass of 0.3 kg. If he holds the ball above the ground at a height of 2.0 m to serve, what is its gravitational potential energy (GPE)?

• 5.88 J
• 0.6 J
• 6.67 J
• 0.15 J

With all of his Batgear on, Batman has a mass of 90.7 kg. How much potential energy does he have if he's perched on top of a 1,575 m building? 

• 142,852.5 J
• 1,399,954.5 J
• 0.058 J
• 17.36 J

I have the most potential energy if I am:

• 5 feet high

• 10 feet high

• 15 feet high

• 20 feet high

What is the unit of measurement for potential energy?

• Watts

• Joules

• Newtons

• Meters

What is kinetic energy?

• When an object is in motion
• When an object is not in motion
• all of the above
• none of the above

What is the unit of measurement for kinetic energy?

• Watts
• Joules
• Newtons
• Meters

A bicycle and a person with a total mass of 80 kg are traveling at a velocity of 7 m/s. What is their kinetic energy?

• 156,800 J

• 1,960 J

• 0.82 J

• 7,840 J