Lab: Kinetic Energy Answers

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The concept of energy can be calculated in multiple ways. Which units are used for energy? Check all that apply.jouleskilogram meters2/seconds2newtonskilojoulesmeters/seconds2

A
joules
B
kilogram meters2/seconds2
C
newtons
D
kilojoules
E
meters/seconds2
2
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A 50 kg ball traveling at 5 m/s would have [___] kinetic energy.

A
the same
B
2 times more
C
2 times less
D
4 times more
E
4 times less
3

A 50 kg person falling at 10 m/s would have [___] kinetic energy.

A
the same
B
2 times more
C
2 times less
D
4 times more
E
4 times less
91309

A 1,000 kg ball traveling at 5 m/s would have [___] kinetic energy.

A
the same
B
10 times more
C
10 times less
D
100 times more
E
100 times less
91312

Read through the scenarios below and calculate the predicted change in kinetic energy of the object compared to a50 kg ball traveling at 10 m/s.

Answers:
A 50 kg ball traveling at 20 m/s would have kinetic energy.:4 times more
A 50 kg ball traveling at 5 m/s would have kinetic energy.:4 times less
A 50 kg person falling at 10 m/s would have kinetic energy.:the same

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