Front

What is an echo?

Back

An echo is a sound that is repeated because the sound waves are reflected back.

Front

Which car would be hotter in the sun, a black car or a white car?

Back

The black car would be hotter.

Front

How can you measure wavelength?

Back

You can measure wavelength from crest to crest or from trough to trough.

Front

What type of electromagnetic waves have the shortest wavelength?

Back

Gamma rays have the shortest wavelength.

Front

What is wavelength?

Back

Wavelength is a measurement between 2 crests or 2 troughs.

Front

What is pitch?

Back

Pitch is how high or low a sound is.

Front

What is vibration?

Back

Vibration is a rapid back-and-forth movement that creates sound.

Front

What is amplitude?

Back

Amplitude is the height of a wave from its resting position to its crest.

Front

What is frequency?

Back

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

Front

What happens to sound waves in a vacuum?

Back

Sound waves cannot travel in a vacuum because there is no medium to carry the sound.