Mechanical and Electromagnetic Waves

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 and can travel through a vacuum. Examples include light waves, radio waves, and X-rays.

Front

What is the definition of amplitude in the context of waves?

Back

Amplitude is the maximum distance that a wave's particles are displaced from their rest position. It is a measure of the wave's energy.

Front

What is wavelength?

Back

Wavelength is the distance between two consecutive points that are in phase on a wave, such as from crest to crest or trough to trough.

Front

What is frequency?

Back

Frequency is the number of waves that pass a given point in one second, measured in hertz (Hz). Higher frequency means more waves per second.

Front

What is the relationship between wavelength and frequency?

Back

Wavelength and frequency are inversely related; as the wavelength increases, the frequency decreases, and vice versa.

Front

What is a crest in a wave?

Back

A crest is the highest point of a wave, representing the maximum displacement of the medium in the upward direction.

Front

What is a trough in a wave?

Back

A trough is the lowest point of a wave, representing the maximum displacement of the medium in the downward direction.

Front

What is a node in a wave?

Back

A node is a point along a standing wave where the wave has minimal amplitude, resulting in no displacement of the medium.

Front

What is the speed of a wave?

Back

The speed of a wave is the distance traveled by a wave in a given amount of time, calculated as speed = wavelength × frequency.