4.3.2 GPE

Energy stored because of gravity is called:

• Gravitational Potential Energy

• Kinetic Energy

• Mechanical Advantage

• Chemical Energy

When you are holding a book, energy is stored between the book and Earth; this type of energy is called ________ potential energy.

• Kinetic Energy

• Chemical Energy

• Gravitational Potential Energy

• Electric Energy

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 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

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

Sue lowers a stack of books with a mass of 20 kg over a distance of 2 meters.  Calculate work.

• 400 J
• -40 J
• -400 J
• -20 J