Open Sci Ed

In graph D the peaks and valleys are closer together, so they have a higher ___________.

Tags

NGSS.MS-PS4-1

What determines the pitch of a sound?

• Amplitude

• Frequency

• Intensity

• Wavelength

What happens to the frequency of a sound wave if the pitch increases?

• It decreases

• It increases

• It remains the same

• It becomes zero

What does the frequency of a sound wave determine?

• The loudness of the sound

• The pitch of the sound

• The color of the sound

• The speed of the sound

What unit is used to measure the frequency of sound waves?

• Meters

• Hertz (Hz)

• Decibels (dB)

• Kilometers per hour (km/h)

What is frequency?

• the number of vibrations per second

• how high or low a sound is

• the loudness or softness of a sound

• the back and forth movement of matter

Tags

NGSS.MS-PS4-1

If two sounds have the same pitch but different loudness, what is different about their sound waves?

• Frequency

• Amplitude

• Speed

• Wavelength

Tags

NGSS.MS-PS4-1

What does the pitch of a sound depend on?

• Amplitude of the wave

• Speed of the wave

• Frequency of the wave

• Reflection of the wave

Which of the following frequencies is likely to produce a high-pitched sound?

• 250 Hz

• 1000 Hz

• 5000 Hz

• 20 Hz

What is the frequency of this model wave?

• 10 waves per second

• 3 waves per second

• 6 waves per second

• 2 waves per second

Tags

NGSS.MS-PS4-1