Lesson 2: Conservation of Energy

Question 1

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

Revolt · Accepted Answer

B; kinetic

Question 2

Question 2

Revolt · Accepted Answer

kinetic

Question 3

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

Revolt · Accepted Answer

100577; kinetic

Question 4

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

Revolt · Accepted Answer

B only

Question 5

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 6

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

Lesson 2: Conservation of Energy Answers