Sound Review

Why does sound travel faster in solids than gases?

• atoms are farther apart in solids

• atoms are closer together in solids

• atoms are smaller in solids

• atoms are larger in solids

How do all musical instruments make sound?

• they create vibrations

• they send sound waves in one direction

• they make sound waves with the same amplitude

• two objects strike each other

What effects the speed of sound?

• the material it travels through

• the amplitude of the sound waves

• the wavelength of the disturbance

• the type of motion that creates it

How does sound travel through air?

• The wave carries molecules away from the sound.

• The wave's energy causes molecules to move back and forth

• The wave carries a molecule until it hits another one.

• The wave gains energy from the moving molecules.

How does sound usually travel?

• through the air in all directions

• carrying air in all directions

• through the air in one direction

• carrying air in one direction

Which part of the diagram is the amplitude?

• 1

• 2

• 3

• 4

Why doesn't sound travel in space?

• space is too cold

• gravity is too strong

• matter is too far apart

• energy from the Sun is too powerful

How is an echo created?

• sound is reflected

• sound is scattered

• sound is absorbed

• sound is refracted

If you hit drums with a greater force, the sound is

• quieter

• louder

• lower in pitch

• higher in pitch

Which part of a wave shows how loud it is?

• wavelength

• magnitude

• amplitude

• frequency