Sound

Front

What is sound?

Back

Sound is a type of energy made by vibrations that travel through the air or another medium and can be heard when they reach a person's or animal's ear.

Front

What is frequency in relation to sound?

Back

Frequency refers to how many times a sound wave vibrates in one second. It determines the pitch of the sound.

Front

What is pitch?

Back

Pitch is the measure of how high or low a sound is, which is determined by the frequency of the sound wave.

Front

What creates a high pitch sound?

Back

High pitch sounds are created by fast vibrations, such as a whistle or a bird chirping.

Front

What creates a low pitch sound?

Back

Low pitch sounds are created by slow vibrations, such as a man's voice or a bass guitar.

Front

What is a sound wave?

Back

A sound wave is a wave of pressure that travels through a medium (like air, water, or solids) and is caused by vibrating objects.

Front

What is reflection of sound?

Back

Reflection of sound occurs when sound waves bounce off a surface, like an echo in a gym.

Front

What materials can absorb sound?

Back

Materials like pillows, carpets, and curtains can absorb sound, reducing the amount of sound that reflects off surfaces.

Front

What is an example of a high frequency sound?

Back

An example of a high frequency sound is a dog whistle, which is too high for humans to hear.

Front

What is an example of a low frequency sound?

Back

An example of a low frequency sound is the rumble of thunder.