Bell Ringer SC.7.P.10.3

Front

What is the reason you can't hear through a transparent window?

Back

There is a vacuum between the layers of the window pane.

Front

How do the sound waves of higher pitch notes compare to those of lower pitch notes?

Back

The sound waves of notes with higher pitches have higher frequencies.

Front

What is the relationship between pitch and frequency?

Back

The higher the frequency, the higher the pitch of the sound.

Front

What happens to the speed of a sound wave as it passes from air into the ground?

Back

The speed of the sound wave increases.

Front

What occurs when light is refracted?

Back

It changes direction.

Front

Define sound wave frequency.

Back

Frequency is the number of waves that pass a point in one second, measured in Hertz (Hz).

Front

What is pitch in terms of sound waves?

Back

Pitch describes how low or high a sound seems to a human ear.

Front

How does temperature affect the speed of sound in air?

Back

As temperature increases, the speed of sound in air also increases.

Front

What is the principle of refraction?

Back

Refraction is the bending of light as it passes from one medium to another with a different density.

Front

What is the difference between a vacuum and air in terms of sound transmission?

Back

Sound cannot travel through a vacuum because there are no particles to transmit the sound waves, while sound travels through air due to particle vibrations.