Review - KE, GE, Elastic Energy, and Energy Transformations
Authored by Robert Greer
Science
7th Grade
NGSS covered
Used 13+ times
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26 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Kinetic Energy is a type of energy that an object has when it is
Moving
At rest
Tags
NGSS.MS-PS3-1
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Two factors that affect the amount of KE a moving object has are...
Speed and Elevation
Speed and Mass
Rigidity and Speed
Mass and Elevation
Tags
NGSS.MS-PS3-1
3.
FILL IN THE BLANKS QUESTION
5 mins • 1 pt
As the speed of an object INCREASES, then its KINETIC ENERGY will
(a)
Tags
NGSS.MS-PS3-1
4.
FILL IN THE BLANKS QUESTION
5 mins • 1 pt
A moving object with LESS MASS will have (a) KE than a moving object with MORE MASS
Tags
NGSS.MS-PS3-1
5.
OPEN ENDED QUESTION
5 mins • Ungraded
Imagine that you are out grocery shopping and are pushing a cart. You push the cart at the same speed the entire time, but fill it up with groceries as you go. When would the cart have more kinetic energy - when it is empty or full? Why?
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Answer explanation
The full cart would have more KE because it has more mass than the empty cart. Both carts are moving at the same speed, so the only difference is mass.
Tags
NGSS.MS-PS3-1
NGSS.MS-PS3-5
NGSS.MS-PS3-4
6.
OPEN ENDED QUESTION
5 mins • Ungraded
It's wintertime and you are sledding down a steep hill. When do you have more KE, at the top when you start your slide or at the bottom as you finish your slide? Why?
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Answer explanation
You have more KE at the bottom because you are moving fastest at the bottom of the hill. This is because you pick up speed as you travel down the hill. Your mass stays the same, so it doesn't affect the amount of KE.
Tags
NGSS.MS-PS3-1
NGSS.MS-PS3-5
7.
OPEN ENDED QUESTION
5 mins • Ungraded
You and your friends are sledding on a four-person sled. In the middle of your run, one of you falls off. Does the KE of the sled increase, decrease, or stay the same right after that happens? Why?
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Answer explanation
The KE decreases because the sled lost the mass of one person. Less mass means that it has less KE now.
Tags
NGSS.MS-PS3-1
NGSS.MS-PS3-5
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