Elevate Grade 4 Topic 3 Waves Vocabulary

Front

What is a wave?

Back

A wave is a regular pattern of motion caused by a disturbance that transfers energy from one place to another.

Front

What does amplitude refer to in a wave?

Back

Amplitude is the height of the wave from its resting point, indicating the energy of the wave.

Front

What is wavelength?

Back

Wavelength is the distance between two consecutive crests or troughs in a wave.

Front

What does frequency mean in the context of waves?

Back

Frequency is the number of waves that pass a point in a given amount of time, usually measured in Hertz (Hz).

Front

What is the equilibrium position of a wave?

Back

The equilibrium position is the resting point of the wave where it would be if there were no disturbances.

Front

What type of wave is a sound wave?

Back

A sound wave is a mechanical wave that requires a medium (like air, water, or solids) to travel.

Front

What are electromagnetic waves?

Back

Electromagnetic waves are waves that can travel through a vacuum and do not require a medium, such as light waves, radio waves, and microwaves.

Front

What is a crest in a wave?

Back

A crest is the highest point of a wave.

Front

What is a trough in a wave?

Back

A trough is the lowest point of a wave.

Front

What is the difference between mechanical and electromagnetic waves?

Back

Mechanical waves require a medium to travel through, while electromagnetic waves can travel through a vacuum.