Different Types of Energy

Dr. Forrester introduces various types of energy, including potential, kinetic, mechanical, chemical, sound, light, and heat energy. The video explains how energy is measured by the work it does, with examples illustrating each type. Potential energy is stored energy, while kinetic energy is energy in motion. Mechanical energy involves the motion of objects, and chemical energy is released during chemical reactions. Sound energy is created by vibrations, and light energy involves electromagnetic radiation. Heat energy, or thermal energy, is the transfer of heat between substances.

What is an example of potential energy?

• A compressed spring

• A moving car

• A running person

• A flowing river

Which type of energy is associated with motion?

• Sound energy

• Kinetic energy

• Chemical energy

• Potential energy

What happens when potential energy is converted into kinetic energy?

• A book remains on the shelf

• A car stays parked

• A spring remains compressed

• Books fall off a shelf

Which of the following is an example of chemical energy?

• A battery powering a device

• A guitar string vibrating

• A bird flying

• A light bulb glowing

How is sound energy created?

• By chemical reactions

• Through heat transfer

• By electromagnetic radiation

• Through vibrations

What is light energy a combination of?

• Heat and light energy

• Sound and heat energy

• Chemical and mechanical energy

• Potential and kinetic energy

In which direction does heat energy flow?

• From a cooler substance to a warmer one

• From a warmer substance to a cooler one

• In all directions equally

• Only upwards