light and sound waves Unit 4 review

A student views a table of the speed of sound waves in three different materials. Which conclusion can be drawn based on the information in the table?

• Sound travels slower in air because it has a higher density than the other materials.

• Sound travels slower in water because it has a lower density than the other materials.

• Sound travels faster in glass because it has a higher density than the other materials.

• Sound travels faster in glass because it has a lower density than the other materials.

A wave with a large wavelength will have a ______ frequency and _____ energy

• high, low

• high, high

• low, high

• low, low

This is a wave pattern diagram for two transverse waves.
How do the waves compare?

• Both waves have the same frequency.
• Both waves have the same wavelength.
• Wave 1 has a longer wavelength than Wave 2.
• Wave 1 has a higher frequency than Wave 2.

Low Amplitude = ______________

• Quieter Sounds
• Louder sounds

The picture shows a duck swimming in a pond. Why does there appear to be another duck head in the water?

• The water in the pond reflects light from the Sun, making a mirror image.

• The molecules in the atmosphere refract the light, splitting it into two images.

• The duck scatters the light, making hundreds of tiny refractions that collect into an image.

• The bottom of the pond absorbs the light, then projects it toward the surface as an image.

High Amplitude =__________________

• Louder sounds
• Quieter Sounds

If the distance represented by the letter A were increased, how would it change the way the sound was heard?

• The sound would be higher. 
• The sound would be lower. 
• The sound would be softer. 
• The sound would be louder. 

High frequency = _______ Pitch

• High
• Low

Between waves B and D, which is louder?

• Wave B

• Wave D

Which diagram of a sound wave represents the sound with the highest pitch?

• A
• B
• C
• D