Waves 6th Grade

Front

What are sound waves?

Back

Sound waves are vibrations that travel through a medium (like air, water, or solids) and can be heard when they reach a person's or animal's ear.

Front

What are light waves?

Back

Light waves are electromagnetic waves that can travel through a vacuum and are visible to the human eye.

Front

What is the main difference between sound waves and light waves?

Back

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

Front

What is energy in the context of waves?

Back

Energy is the ability to do work, and in the context of waves, it is transferred through the wave as it moves.

Front

What is wavelength?

Back

Wavelength is the distance between two consecutive crests (or troughs) of a wave.

Front

What is frequency?

Back

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

Front

What is amplitude?

Back

Amplitude is the height of a wave from its rest position to its crest (or trough), indicating the energy of the wave.

Front

What causes a wave to start?

Back

A wave is started by a vibration, which creates disturbances in the medium.

Front

What is a medium in the context of waves?

Back

A medium is the substance through which a wave travels, such as air, water, or solid materials.

Front

What is the speed of a wave?

Back

The speed of a wave is how fast the wave travels through a medium, calculated as speed = wavelength x frequency.