Work, Energy, Conservation

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

• more
• less
• none of the above
• all of the above 

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

At which point on the roller coaster is the gravitational potential energy the greatest?

• W

• X

• Y

• Z

Tags

NGSS.MS-PS2-4

NGSS.MS-PS3-2

What is the gravitational potential energy of an 85 kg mountain climber at the summit of a 6267 m volcano?

• 5,220,411 J

• 532,695 J

• 73.7 J

• 54,356.6 J

Tags

NGSS.HS-PS3-2

What is the Work done by an 85 kg mountain climber at the summit of a 6267 m volcano?

• 5,220,411 J

• 532,695 J

• 73.7 J

• 54,356.6 J

Tags

NGSS.HS-PS2-1

You drop a 5 kg ball from a height of 2 m. What is the ball's kinetic energy the moment before it hits the ground?

• 980 J

• 10 J

• 0.98 N

• 980 N

Tags

NGSS.HS-PS3-1

What are the TWO units used to measure work?

• Joule
• Watt
• Newton⋅meters

• Pascal

When work is done, there is always a(n) _______.

• constant rate
• single movement involved
• transfer of energy
• increase in the mechanical advantage

At which point(s) on the roller coaster is the kinetic energy at its maximum?

• A
• B
• C
• D

Tags

NGSS.HS-PS3-2

Is this an example of work?

• Yes

• No

Tags

NGSS.MS-PS3-5