Waves, Light and Sound

Front

What is amplitude in a wave?

Back

Amplitude is the height of the wave from its rest position. In light waves, a higher amplitude means the light is brighter.

Front

What does wavelength mean?

Back

Wavelength is the distance between one point on a wave and the same point on the next wave.

Front

What is a medium in the context of sound waves?

Back

A medium is a substance (like air, water, or solid materials) through which sound waves travel.

Front

How does sound differ from light in terms of travel?

Back

Sound needs a medium to travel, while light can travel through a vacuum.

Front

What type of wave has the longest wavelength?

Back

Radio waves have the longest wavelength among all types of waves.

Front

What is frequency in relation to waves?

Back

Frequency is the number of waves that pass a point in one second.

Front

What happens to the brightness of light if the amplitude increases?

Back

The brightness of light increases with higher amplitude.

Front

What is the relationship between wavelength and energy in waves?

Back

Longer wavelengths have lower energy, while shorter wavelengths have higher energy.

Front

What type of wave is visible light?

Back

Visible light is an electromagnetic wave that can be seen by the human eye.

Front

What is the speed of sound in air?

Back

The speed of sound in air is approximately 343 meters per second at room temperature.