6.P.1.3 Sound Test Review

Two sounds are produced, one immediately after the other. Both sound waves have the same pitch, but the second one is louder. Which wave property is most likely greater for the second sound wave?

• frequency

• amplitude

• wavelength

• wave speed

Tags

NGSS.MS-PS4-1

Which choice describes the ear’s cochlea?

• a tiny bone that passes vibrations from the hammer to the stirrup

• a black circle at the center of an iris that controls how much light enters the eye

• a tightly stretched membrane located at the end of the ear canal that vibrates when sound waves strike it

• a bony, fluid-filled tube in the inner ear through which sound waves trigger nerve impulses

In which medium would sound move the fastest?

• vacuum

• water

• steel

• air

Tags

NGSS.MS-PS4-2

Which term describes the tendency of an object to vibrate when exposed to a sound wave that matches the object’s natural frequency?

• diffraction

• reflection

• refraction

• resonance

What is most likely to occur when a sound wave enters the brain’s hearing center?

• The wave vibrates against the middle ear.

• The wave is sent back through the ear canal.

• The brain uses the sound wave to maintain balance.

• The brain interprets what the sound is and where it is coming from.

Tags

NGSS.MS-LS1-8

How does sound travel through a solid?

• by vibrating the molecules in the matter

• by moving in a straight line through the object

• by changing its speed as it moves through the object

• by remaining very still while traveling through the matter

Tags

NGSS.MS-PS4-2

Joshua placed a playing card in a bicycle wheel so that the spokes would cause the card to vibrate. When he rode the bicycle fast, a high-pitched sound was produced, and when he rode the bicycle slowly, a low-pitched sound was produced. Which statement best explains why both high-pitched and low-pitched sounds were produced?

• The playing card only vibrated when the wheel was moving fast.

• The playing card only vibrated when the wheel was moving slowly.

• The playing card vibrated differently as the speed of the wheel changed.

• The playing card vibrated the same even though the speed of the wheel changed.

Tags

NGSS.MS-PS4-1

Which two factors most affect the speed of sound?

• the density and the mass of the medium

• the length and the density of the medium

• the mass and the temperature of the medium

• the density and the temperature of the medium

Why it is easier for sound waves to move through solids than liquids?

• Molecules in liquids do not move.

• Molecules are farther apart in solids.

• Molecules are closer together in solids.

• Molecules in liquids are packed too closely together.

Tags

NGSS.MS-PS4-2

Jorge hits a drum as hard as he can, and it makes a loud sound. Then he hits the same drum with less strength, and it makes a quieter sound. Which statement best explains why hitting the drum at different strengths produces sounds at different volumes?

• The pitch is different at each strength

• The pitch is the same at each strength

• The vibrations are different at each strength

• The vibrations are the same at each strength.

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2