Kinetic and Potential Energy Concepts

What is the mass of the ball used in the experiment?

• 0.015 kg

• 0.15 kg

• 1.5 kg

• 15 kg

From what height is the ball initially released on the ramp?

• 0.5 meters

• 1.0 meters

• 2.0 meters

• 3.0 meters

What is the height of the lowest point of the ramp (Point A) above the ground?

• 0 meters

• 0.5 meters

• 1.0 meters

• 3.0 meters

Which of the following equations correctly represents kinetic energy (KE), where 'm' is mass and 'v' is velocity?

• KE = mgh

• KE = 1/2 mv^2

• KE = Fd

• KE = Pt

Which of the following equations correctly represents gravitational potential energy (PE), where 'm' is mass, 'g' is acceleration due to gravity, and 'h' is height?

• PE = 1/2 mv^2

• PE = Fd

• PE = mgh

• PE = Pt

A ball is held stationary at the top of a ramp before being released. What is its initial kinetic energy?

• 0 J

• 2.2 J

• 4.4 J

• 6.6 J

A 0.15 kg ball is placed at the top of a 3-meter high ramp. What is its initial gravitational potential energy? (Assume g = 9.8 m/s^2)

• 0 J

• 2.2 J

• 4.4 J

• 6.6 J

A 0.15 kg ball is at rest at the top of a 3-meter high ramp. What is the total mechanical energy of the ball at this point? (Assume g = 9.8 m/s^2)

• 0 J

• 2.2 J

• 4.4 J

• 6.6 J

As a ball rolls down a ramp, its potential energy is converted into kinetic energy. What principle describes the constant sum of these two forms of energy in an isolated system without non-conservative forces?

• Law of Universal Gravitation

• Newton's Second Law

• Principle of Conservation of Momentum

• Principle of Conservation of Mechanical Energy

The ball eventually leaves the ramp and hits the ground at Point B. What is the gravitational potential energy of the ball at Point B, assuming ground level is the reference point for zero potential energy?

• 0 J

• 0.74 J

• 3.7 J

• 4.4 J