In the image, how does the potential energy of the woman half-way up the ladder compare to the potential energy of the woman on top of the ladder?
The woman half-way up the ladder has only half as much PE. (Or the woman at the top has twice as much as the woman half-way down the ladder.)
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15
Gas in a car tank, a battery, and food sitting on a plate are examples of ___________ energy.
chemical / potential
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15
On a motocross race track, there can be many hills. When you are at the top of each hill you have less _____________ energy.
kinetic
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15
What will happen to this water skier's potential energy as he falls back down toward the water?
potential energy will decrease
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15
An arrow in motion is an example of ___________ energy.
kinetic
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15
Which food item in the picture has more potential energy, the banana (yellow) or the eggplant (purple)?
the banana
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15
A kid is jumping up and down on a pogo stick. When (or where) is all of his energy converted into almost all kinetic energy?
at the bottom of each jump (or just before touching the ground)
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15
As the dirt rally race car shown climbs the hill, how is potential energy changing?
potential energy is increasing
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heart
Other team wins 25 points!
Oops!
seesaw
Swap points!
Okay!
gift
Win 25 points!
Okay!
lifesaver
Give 5 points!
Oops!
lifesaver
Give 20 points!
Oops!
seesaw
Swap points!
Okay!
gift
Win 20 points!
Okay!
baam
Lose 25 points!
Oops!
heart
Other team wins 25 points!
Oops!
gift
Win 10 points!
Okay!
rocket
Go to first place!
Okay!
banana
Go to last place!
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15
Describe what happens to the potential and kinetic energy of the blue skateboarder as he goes from the top of the half-pipe to the bottom.
Potential energy changes into kinetic. (Or potential energy decreases, and kinetic energy increases.)
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15
A boulder rolling down a hill is an great example of ___________ energy.
kinetic
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15
The image shows a stretched rubber band which is not yet moving. This is an example of ___________ energy.
potential
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15
For the image, which is true?
A) rolling the rock to the top creates more potential energy
B) carrying it to the top creates more PE
C) lifting it with a crane would create more PE
D) how you get the rock there doesn't change PE