Energy Flashcard

Front

Energy stored in an object due to its position?

Back

Potential energy is the energy stored in an object because of its position or state. For example, a rock at the top of a hill has potential energy because of its height.

Front

Longitudinal waves travel in what direction?

Back

Longitudinal waves travel in a parallel direction to the direction of the energy transfer. An example is sound waves, which compress and expand the medium they travel through.

Front

What is an energy transfer?

Back

Energy transfer is the process of moving energy from one place to another. For example, when you heat a pot of water on a stove, thermal energy is transferred from the stove to the pot.

Front

What is the material a wave must travel through called?

Back

The material a wave travels through is called a medium. Examples of mediums include air, water, and solid materials.

Front

Waves are...

Back

Waves are disturbances that transfer energy from one place to another without transferring matter. For example, ocean waves transfer energy across the surface of the water.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion. The faster an object moves, the more kinetic energy it has. For example, a moving car has kinetic energy.

Front

What is heat energy?

Back

Heat energy, or thermal energy, is the energy that comes from the temperature of matter. It is the energy that causes the particles in a substance to move.

Front

What is sound energy?

Back

Sound energy is a type of energy produced by vibrating sound waves. It travels through a medium, such as air or water, and can be heard when it reaches our ears.

Front

What is radiant energy?

Back

Radiant energy is the energy of electromagnetic waves, such as light. It can travel through a vacuum and is responsible for sunlight reaching the Earth.

Front

What is a transverse wave?

Back

A transverse wave is a wave in which the motion of the medium is perpendicular to the direction of the wave. An example is a wave on a string.