calculating energy

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

NGSS.MS-PS3-5

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

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 

Tags

NGSS.MS-PS3-2

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

NGSS.MS-PS3-5

NGSS.MS-PS3-4

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-PS3-2

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Which of the following has the greatest amount of gravitational potential energy?

• A 20 kg projector suspended 10 m in the air
• A 100 kg wrecking ball suspended 10 m in the air
• A 5 kg basketball suspended 10 m in the air
• They all have the same GPE because they are all 10 m in the air

Tags

NGSS.MS-PS3-2

NGSS.MS-PS2-4

Which of the following affects the gravitational potential energy of an object?

• The mass of the object
• The height of the object
• The velocity of the object
• Both the mass and height of the object

Tags

NGSS.MS-PS3-2

At what position does the pendulum have the greatest gravitational potential energy?

• Position D
• Position C
• Position B

Tags

NGSS.MS-PS3-2

Which character has the greatest gravitational potential energy?

• Character A
• Character B
• Character C
• Character D

Tags

NGSS.MS-PS3-2

NGSS.MS-PS2-4

Which skier has the greatest kinetic energy?

• Skier A
• Skier B
• Skier C
• Skier D

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4