Conservation of Energy

Question 1

At which point or points does the pendulum have the greatest kinetic energy?

Revolt · Accepted Answer

B only

Question 2

At which position, A or B, is the potential energy of the swing the greatest?

Revolt · Accepted Answer

B; kinetic

Question 3

Question 100578

Revolt · Accepted Answer

kinetic

Question 4

A 200 kg roller coaster car is located at the top of a hill where the height is 30 m. What is the velocity when it reaches the bottom of the hill?

Revolt · Accepted Answer

24.2 m/s

Question 5

Question 100580

Revolt · Accepted Answer

100630

Question 6

Question 100581

Revolt · Accepted Answer

100631

Question 7

A spring attached to a mass is at rest in the initial position (not shown). The spring is compressed in position A and is then released, as shown in position B. Which equation describes conservation of energy in position A?

Revolt · Accepted Answer

E = kx2

Question 8

The compressed spring of a dart gun has potential energy of 50 J. If the spring constant is 200 N/m, what is the displacement of the spring?

Revolt · Accepted Answer

0.7 m

Question 9

Question 100584

Revolt · Accepted Answer

100639

Question 10

At which position, A or B, is the potential energy of the swing the greatest?

Revolt · Accepted Answer

100577; kinetic

Conservation of Energy Answers

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