Energy

Velocity is both ____ and _____.

(select all that apply)

• direction

• density

• speed

• volume

What is energy due to an objects position known as?

• kinetic energy, KE

• impulse

• potential energy, PE

• work

What is energy of motion called?

• kinetic energy, KE

• impulse

• potential energy, PE

• work

Which of the following is the SI Unit of measure for energy?

• joule, J

• kilogram, kg

• newton, N

• meter, m

What is the potential energy of a 50-kg cat that is sitting on a branch 14-m from the ground? *You may use a calculator.

• 6860 J

• 6860 m

• 6860 m/s

• 6860 kg

A cheetah can run briefly with a speed of 31.0 m/s. Suppose a cheetah with a mass of 47.0 kg runs at this speed. What is the cheetah’s kinetic energy?

• 1457 Joules

• 22,584 Joules

• 15 Joules

• 45,167Joules

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

• A

• G

• D

• C

• G

At which position does the child on the swing have the most gravitational potential energy?

• W

• X

• Y

• Z

Gravitational potential energy depends on the ________ and ________ of the object. 

• Height and mass
• Friction and movement
• Mass and Movement
• Height and Friction 

A 60.0 kg person walks from the ground to the roof of a 74.8 m tall building. How much gravitational potential energy does she have at the top of the building?

• 43982.4 J
• 63982.3 J
• 43962.4 J
• 83942.4 J