Energy Review

At which point is potential energy greatest?

• W
• X
• Y
• Z

Tags

NGSS.MS-PS3-2

Which is the best example that something has kinetic energy?

• a. a car parked on a steep hill 
• b. a tennis ball rolling across the court
• c. a picture hanging on the wall 
• d. a piece of coal before it's burned 

Tags

NGSS.MS-PS3-1

Energy due to motion is ____________ energy. 

• Potential 
• Energy
• Kinetic
• Friction

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

When a pendulum swings, at which point is kinetic energy highest?

• 1
• 2
• 3
• 4

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

When a pendulum swings, at which point is potential energy at its greatest?

• 1
• 2
• 3
• 4

Tags

NGSS.MS-PS3-2

Conservation of energy states that energy cannot be ________ or ________, but can be altered from one form to another.

• created, destroyed
• gravity, force
• heat, created

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

The neighbor's cat ran through your yard. The cat has a mass of 5 kg. He is running at a speed of 3 m/s. What is the kinetic energy of the cat as he runs?

• 8.5 J

• 45 J

• 7.5 J

• 22.5 J

Tags

NGSS.MS-PS3-1

What is the kinetic energy of a 25kg object moving at a velocity of 2.5 m/s

• 78.125 J

• 31250 J

• 781.25 J

• 78,125 J

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Calculate the KE of a runner that has a mass of 80 kg and is running at a velocity of 8 m/s

• 5120 J

• 320 J

• 640 J

• 2560 J

Tags

NGSS.MS-PS3-1

A weight lifter lifts a set of 1250kg weights a vertical distance of 2m in a weight lifting contest. What Potential Energy do the weights now possess?

• 12,789 Joules
• 24,525 Joules
• 4,500 Joules