Energy Transfer and Conservation Quiz

What is meant by the conservation of energy?

• Energy is always lost in the form of heat.

• Energy can only be stored in kinetic form.

• Energy can be transferred from one form to another, but the total amount remains constant.

• Energy can be created and destroyed.

During a bungee jump, when is the kinetic energy store at its maximum?

• At the start of the jump.

• When the rope is fully extended.

• At the top of the ascent.

• When the bungee rope just starts to tighten.

What happens to the energy when the bungee rope is fully extended?

• It is all in the gravitational potential energy store.

• It is all in the elastic potential energy store.

• It is dissipated as thermal energy.

• It is all in the kinetic energy store.

Why does the bungee jumper never return to the original position?

• Because the rope is too short.

• Because energy is dissipated as thermal energy.

• Because the jumper loses weight.

• Because the gravitational potential energy increases.

What causes energy dissipation during a bungee jump?

• The weight of the jumper.

• Friction with air particles and stretching effects in the bungee rope.

• Only friction with air particles.

• Only stretching effects in the bungee rope.

What type of energy is stored at the start of a bungee jump?

• Thermal energy.

• Gravitational potential energy.

• Elastic potential energy.

• Kinetic energy.

During the ascent of the bungee jump, energy is transferred from the kinetic energy store to which store?

• Gravitational potential energy store.

• Chemical energy store.

• Elastic potential energy store.

• Thermal energy store.

Why is the bungee rope designed to be elastic?

• To increase the speed of the jumper.

• To store energy and reduce the force on the jumper.

• To make the jump last longer.

• To decrease the weight of the jumper.

What happens to the kinetic energy of the jumper as the bungee rope starts to stretch?

• It is converted into gravitational potential energy.

• It is converted into elastic potential energy.

• It is dissipated as sound energy.

• It remains constant.