Phy Science - Energy Unit 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

Which would have the LEAST gravitational potential energy (GPE)?

• A ball sitting on the ground

• Moon viewed from the Earth

• An airplane flying 30,000 feet above the ground

• A rock sitting on top of Mt. Everest

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

How could you increase the object's gravitational potential energy (GPE) without changing its distance from the ground (height) and gravity?

• Decrease the object's mass

• Increase the object's height

• Increase the object's mass

• Decrease the object's height

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 position does the child on the swing 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

Which is the correct unit for expressing gravitational potential energy?

• Joule

• Newton

• m/s²

• meter

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