Waves and Sound

A fly flaps its wings back and forth 200 times each second. Calculate the period of a wing flap.

• 200
• 0.5
• 0.05
• 0.005

Tags

NGSS.HS-PS4-1

If 10 waves pass every second, what is the frequency?

• 10 Hz
• 0.1 Hz

Tags

NGSS.HS-PS4-1

If 6 waves pass in 2 seconds, what is the period?

• 6
• 3
• 2
• 0.33

Which wave has the largest wavelength?

• A
• B
• C
• None (same wavelength)

Tags

NGSS.HS-PS4-1

Sound is produced by something...

• echolocation

• vibrates

• vocal chords

The human perception of how much energy a sound wave carries

• frequency

• loudness

• distance

The higher the ____ the higher the ___

• pitch, frequency

• frequency, pitch

Sound needs a ____ to travel through

• frequency

• medium

• echolocation

• small

A reflected sound wave

• Density
• Echo
• Echolocation
• Infrasound

Light bending as it passes from one medium (object) to another is...

• Refraction
• Reflection

Tags

NGSS.MS-PS4-2