Sound and Light Waves

Front

What is light reflection?

Back

Light reflection is the bouncing back of light waves when they hit a surface. It allows us to see objects as they reflect light into our eyes.

Front

What are mechanical waves?

Back

Mechanical waves are waves that require a medium (solid, liquid, or gas) to travel through. Examples include sound waves and water waves.

Front

What are electromagnetic waves?

Back

Electromagnetic waves are waves that do not require a medium to travel. They can move through a vacuum and include light waves, radio waves, and X-rays.

Front

What is the relationship between frequency and wavelength?

Back

Frequency and wavelength have an inverse relationship: as the frequency increases, the wavelength decreases, and vice versa.

Front

What is amplitude in a wave?

Back

Amplitude is the maximum distance that points on a wave move from their rest position. It is related to the energy of the wave.

Front

What is a crest in a wave?

Back

A crest is the highest point of a wave, representing the maximum displacement of the wave from its rest position.

Front

What is a trough in a wave?

Back

A trough is the lowest point of a wave, representing the minimum displacement of the wave from its rest position.

Front

What is wavelength?

Back

Wavelength is the distance between two consecutive crests or troughs in a wave. It is usually measured in meters.

Front

What happens to sound waves when the pitch is high?

Back

When the pitch of sound waves is high, the frequency of the waves is also high, resulting in shorter wavelengths.

Front

What is echolocation?

Back

Echolocation is a method used by some animals to locate objects by emitting sound waves and listening for the echoes that bounce back.