KS3 Waves

Front

Which is true about reflection?

Back

The angle of incidence = the angle of reflection

Front

What is happening to the light ray at the surface of the water to mean the fish appears higher up than it is?

Back

The light ray is refracting

Front

The picture shows 4 sound waves on an oscilloscope. Which has the highest pitch?

Options:

A

,

B

,

C

,

D

Back

C

Front

What can you say about sound wave A in the picture on the oscilloscope?

Back

It is a very loud sound

Front

The picture shows 4 sound waves on an oscilloscope. What is the wavelength of B?

Back

8 boxes

Front

A ship sends out a pulse of ultrasound and hears its echo 0.3 seconds later. The speed of sound in water is 1500m/s. Calculate the depth of the sea below the ship.

Back

225m

Front

The picture shows 4 sound waves on an oscilloscope. What is the amplitude of B?

Back

4 boxes

Front

If I shine white light at a red filter, what will I see the other side of the filter?

Back

Red light

Front

If I shine red light on a blue bowling ball, what colour will the bowling ball appear to be?

Back

Black

Front

If I shine magenta light on a blue bowling ball, what colour will the bowling bowl appear to be?

Back

Blue