Physics Unit assessment

Energy that is stored is called:

• physical energy

• static energy

• potential energy

• kinetic energy

When you climb to the top of a water slide, you are gaining:

• gravitational kinetic energy

• chemical energy

• chemical potential energy

• gravitational potential energy

Which of the following is an example of potential energy?

• a cliff diver at the top of the cliff

• a moving car on Route 50

• a turning airplane propeller

• a skier going down a hill

If you toss a ball straight up into the air, where will it have the greatest gravitational potential energy?

• on the way up

• at its highest point

• when you catch it

• when you catch it

A roller coaster car travels along the track shown in the picture. At which position on the track are the kinetic and potential energy of the roller coaster car almost equal to each other?

• position 1

• position 2

• position 3

• position 4

Which type of energy is at 100% in the image of the stretched bow?

• momentum

• gravitational kinetic energy

• kinetic energy

• elastic potential energy

You kick a soccer ball that has a mass of 0.43kg with a velocity of  $8\ \frac{m}{s^2}$   formula : $KE\ =\ 0.5mv^2$   

• 40 joules

•  3.44 joules

• 13.76 joules

• 6.88 joules

When riding a roller coaster, you go up and down many hills. When do you have the LEAST amount of kinetic energy?

• at the top of each hill

• as you go down each hill

• at the bottom of each hill

• as you go up each hill

When you rub your hands together, they heat up due to _____________.

• friction

• inertia

• momentum

• gravity

Identify the object that has the greatest gravitational pull.

• a tennis ball

• the moon

• the sun

• the earth