What is pitch?

• How loud a sound is

• How high or low a sound is

• The direction of a sound

• The silence between sounds

Which part of the ear helps you keep your balance?

• Eardrum

• Cochlea

• Semicircular canals

• Ear canal

What is frequency?

• How often a sound is played

• The number of vibrations per second

• The loudness of a sound

• The time between sounds

Which object would produce a low-pitch sound?

• Whistle

• Flute

• Large drum

• Bird chirp

Tags

NGSS.MS-PS4-1

What happens when a sound wave hits a surface and bounces back?

• Diffraction

• Absorption

• Reflection (Echo)

• Refraction

Tags

NGSS.MS-PS4-2

You hear a high-pitched beep from a device. What does that tell you about the frequency of the sound wave?

You tap a metal pipe and hear the sound clearly and quickly. What does this tell you about how sound travels through solids?

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Describe how sound is made and how it travels.

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

How can you tell the difference between a high pitch and a low pitch using an instrument?

Look at the two images.

Identify which makes a quiet sound and which makes a loud sound

a

b

Quiet sound

Loud sound

Tags

NGSS.MS-PS4-1