Calculating KE and GPE

You serve a volleyball with a mass of 2 kg. The ball leaves your hand with a speed of 30 m/s. What is the KE of the ball?

• 900 J

• 1800 J

• 60 J

• 30 J

Tags

NGSS.MS-PS3-1

There is a bell at the top of a tower that is 45 m high. The bell weighs 100 kg. What is the potential energy of the bell?

• 980 J

• 441 J

• 4,500 J

• 44,100 J

Tags

NGSS.MS-PS3-2

A car is traveling with a velocity of 40 m/s and has a mass of 1120 kg. What is the KE of the car?

• 22,400 J

• 44,800 J

• 896,000 J

• 1,792,000 J

Tags

NGSS.MS-PS3-1

An 2 kg apple is hanging in a tree, 10 ft off the ground. What is the gravitational potential energy of the apple?

• 19.6 J

• 20 J

• 98 J

• 196 J 

Which of the following has the GREATEST IMPACT on the kinetic energy of an object?

• Mass 

• Velocity

• Height

• The acceleration due to gravity

Tags

NGSS.MS-PS3-1

A skydiver jumps from a plane and is halfway through her descent. At this point in time she has...

• Kinetic Energy

• Gravitational Potential Energy

• Both Kinetic and Gravitational Potential Energy

• She has no energy

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-5

The faster an object moves, the ________ kinetic energy it has. 

• more

• less

• none of the above

• all of the above 

Tags

NGSS.MS-PS3-1

Which passenger has the most potential energy?

• A

• B

• C

• D

Tags

NGSS.MS-PS3-2

An Olympic high jumper, with a mass of 82 kg, has a maximum gravitational potential energy of 1970 J. How high was the jump?

• 24 m

• 161,540 m

• 2.5 m

• 201 m

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

The world record for pole vaulting is 6.15 m. I the pole vaulter’s gravitational potential energy is 4942 J, what is his mass?

• 803.6 kg

• 504.3 kg

• 30,393.3 kg

• 82 kg

Tags

NGSS.MS-PS2-4

NGSS.MS-PS3-2