Reflection, Refraction, Absorption

Front

What is refraction?

Back

Refraction is the bending of a wave as it passes from one medium to another, caused by a change in its speed.

Front

What happens to the speed of a wave when it enters a denser medium?

Back

The speed of the wave decreases when it enters a denser medium.

Front

What is reflection?

Back

Reflection is the bouncing back of a wave when it hits a surface that does not absorb the wave's energy.

Front

What is absorption in the context of waves?

Back

Absorption is the process by which a wave's energy is taken in by a material, converting it to other forms of energy, often heat.

Front

What is the relationship between frequency and energy in waves?

Back

Higher frequency waves carry more energy than lower frequency waves.

Front

What is the definition of a wave?

Back

A wave is a disturbance that transfers energy from one place to another without transferring matter.

Front

What is the difference between reflection and refraction?

Back

Reflection involves bouncing off a surface, while refraction involves bending as the wave passes into a different medium.

Front

What is an example of refraction in everyday life?

Back

An example of refraction is when a straw appears bent when placed in a glass of water.

Front

What is the effect of temperature on the speed of sound waves?

Back

Sound waves travel faster in warmer temperatures because the molecules are moving more quickly.

Front

What is the law of reflection?

Back

The law of reflection states that the angle of incidence is equal to the angle of reflection.