Lab: Kinetic Energy

Question 1

Which is the correct equation for calculating the kinetic energy of an object?

Revolt · Accepted Answer

[Image: K times E = one half m v squared....]

Question 2

timekinetic energyspeedmass

Revolt · Accepted Answer

speed

Question 3

timekinetic energyspeedmass

Revolt · Accepted Answer

kinetic energy

Question 4

timekinetic energyspeedmass

Revolt · Accepted Answer

mass; Selection 1: mass; Selection 2: speed; Selection 3: kinetic energy

Question 5

Read through the scenarios below and calculate the predicted change in kinetic energy of the object compared to a 100 kg ball traveling at 5 m/s.

Revolt · Accepted Answer

A 10 kg ball traveling at 5 m/s would have kinetic energy.: 10 times less; A 100 kg person falling at 5 m/s would have kinetic energy.: the same

Question 6

the same10 times more10 times less100 times more100 times less

Revolt · Accepted Answer

10 times less

Question 7

the same10 times more10 times less100 times more100 times less

Revolt · Accepted Answer

the same

Question 8

the same2 times more2 times less4 times more4 times less

Revolt · Accepted Answer

4 times more; 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

Lab: Kinetic Energy Answers

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