Energy review

Energy stored because of gravity is called:

• Gravitational Potential Energy

• Kinetic Energy

• Mechanical Advantage

• Chemical Energy

At which point does the ball has the greatest gravitational potential energy (GPE)?

• A

• G

• D

• C

• G

How could you increase the gravitational potential energy of an object without changing its mass and gravity?

• Make the object larger

• Lower the object towards the ground

• Raise the object farther off the ground

• Allow the object to roll on the ground

____________ is the ability to do work.

• Energy

• Force

• Friction

• Motion

Gravitational potential energy depends on the strength of gravity, ________ and ________ of the object.

• height and mass

• friction and movement

• mass and movement

• height and friction

You throw a ball into the air as shown in the diagram. At what point does the ball have the most gravitational potential energy?

• W

• X

• Y

• Z

At which point on the roller coaster is the gravitational potential energy the greatest?

• W

• X

• Y

• Z

What kind of energy is in a rock at the edge of a cliff?

• Gravitational Potential Energy

• Kinetic Energy

• Both potential and kinetic energy

• none of the above

Which of the following is the correct equation for calculating an object's gravitational potential energy?

• PE = mgh

• PE = mg / h

• PE = mg + h

• PE = gh

What is the value of the Earth's acceleration due to gravity (g)?

• 9.8 m/s²

• 100 m/s²

• 25 m/s²

• 3.14 m/s²