Reflection Connection WEek 24

What is the definition of kinetic energy?

• The energy stored in an object due to its position.

• The energy an object possesses due to its motion.

• The energy stored in chemical bonds.

• The energy released during a nuclear reaction.

Which of the following best describes potential energy?

• Energy due to motion.

• Energy stored in an object due to its position or state.

• Energy transferred by heat.

• Energy in the form of light.

Identify the type of potential energy stored in a compressed spring.

• Gravitational potential energy

• Elastic potential energy

• Chemical potential energy

• Nuclear potential energy

Which of the following is an example of energy conversion from potential to kinetic energy?

• A car accelerating on a highway.

• A book falling off a shelf.

• A light bulb being turned on.

• A battery powering a remote control.

Explain why a roller coaster at the top of a hill has potential energy.

• Because it is moving at a high speed.

• Because it is at a height above the ground.

• Because it is in contact with the tracks.

• Because it is powered by electricity.

Which type of potential energy is involved when a chemical reaction occurs?

• Gravitational potential energy

• Elastic potential energy

• Chemical potential energy

• Nuclear potential energy

Describe the energy conversion that occurs when a bow is drawn and then released to shoot an arrow.

• Kinetic to potential energy

• Potential to kinetic energy

• Chemical to thermal energy

• Electrical to mechanical energy

A pendulum is released from a height. At what point is its kinetic energy the greatest?

• At the highest point of its swing

• At the lowest point of its swing

• Halfway down its swing

• When it stops moving

Which of the following scenarios involves the conversion of kinetic energy to potential energy?

• A car braking to a stop.

• A ball being thrown upwards.

• A light bulb being turned on.

• A battery discharging.

Discuss the role of potential energy in a hydroelectric power plant.

• It is converted to kinetic energy as water falls, which then generates electricity.

• It is stored in the form of chemical energy in batteries.

• It is used to heat water for steam generation.

• It is converted directly into electrical energy without any intermediate steps.