Science L7 Waves and Sound

When we talk of the pitch of sound, what are we meaning? Is it the loudness/softness of sound OR how high or low a sound is?

What is this image showing about waves?

Where do we experience the effect of waves everyday in our lives?

In this wave what is the trough? The low point or the high point of the wave?

What is sound measured in?

If we talk about the frequency of a wave, what are we talking about?

In a longitudinal wave there are parts called compressions. Is this where the wave parts are far apart or close together?

What do we measure the velocity of a wave in? Meters/second OR kilometers/second

What is an example of a water wave?

What can we use ultrasound for in the medical field?

In a sonic boom the aircraft is moving at the speed of sound? Yes or No

In a longitudinal wave there are rarefactions. They are the parts where the wave parts are close together OR far apart?

Can we hear ultrasounds? Yes OR no

What is a longitudinal wave? The movement of particles in one direction OR in many directions

With the Doppler effect, must the source of sound be moving OR the person be moving OR can either be moving?

If there is a sound of 90 dB's , is this an acceptable level of sound OR a high level of sound?

What is the meaning of infrasound? Is it sound we cannot hear OR it is extremely soft sound

In this image, what is part B called?