Simple Harmonic Motion (3 of 16): Pendulum Conservation of Energy, An Explanation

What does the Law of Conservation of Energy state?

• Energy can be created but not destroyed.

• Energy can be destroyed but not created.

• Energy can only be transformed from one form to another, not created or destroyed.

• Energy always stays in the same form.

What does potential energy depend on?

• An object's speed.

• An object's motion.

• An object's position or height.

• An object's color.

What does kinetic energy depend on?

• An object's position.

• An object's motion or speed.

• An object's mass and height.

• An object's temperature.

How is Total Mechanical Energy (TME) calculated?

• TME = Potential Energy (PE) - Kinetic Energy (KE)

• TME = Potential Energy (PE) + Kinetic Energy (KE)

• TME = Mass (m) x Gravity (g) x Height (h)

• TME = 1/2 x Mass (m) x Velocity (v)^2

What type of energy does a pendulum have the most of when it reaches its highest point?

• Kinetic energy

• Potential energy

• Thermal energy

• Chemical energy

When a pendulum swings to its lowest point, what type of energy is at its maximum?

• Potential energy

• Kinetic energy

• Thermal energy

• Sound energy

As a pendulum swings upwards from its lowest point, what happens to its kinetic and potential energy?

• Kinetic energy increases, potential energy decreases

• Kinetic energy decreases, potential energy increases

• Both kinetic and potential energy increase

• Both kinetic and potential energy decrease

In a pendulum system without friction, what happens to the total mechanical energy (sum of kinetic and potential energy)?

• It increases

• It decreases

• It stays the same

• It changes randomly