
Quizziz HW 1-1 (Doppler Sound & Light)
Authored by Chelsea Cioffi
Science
8th Grade
NGSS covered

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26 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which wave in the diagram has the greatest frequency?
1
2
3
4
Answer explanation
Wave 4 has the greatest frequency because frequency is inversely related to wavelength. In the diagram, wave 4 has the shortest wavelength, indicating it oscillates the most times per second, thus having the highest frequency.
Tags
NGSS.HS-PS4-1
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Which word is used to identify the distance between points C & G?
Amplitude
Crest
Frequency
Wavelength
Answer explanation
The distance between points C and G in a wave is referred to as the wavelength. Wavelength measures the length of one complete wave cycle, making it the correct term for this distance.
Tags
NGSS.HS-PS4-1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
You can't hear sounds in outer space because there is no
medium
light
energy
heat
Answer explanation
You can't hear sounds in outer space because sound requires a medium (like air or water) to travel through. In the vacuum of space, there is no medium, so sound cannot propagate.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
All waves carry ________ as they travel from one place to another.
matter
space
energy
water
Answer explanation
All waves, including sound and light, carry energy as they propagate through different mediums. Therefore, the correct answer is energy, as waves do not transport matter, space, or water.
Tags
NGSS.HS-PS4-5
NGSS.HS-PS3-2
5.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
What is the Doppler Effect?
A change in frequency due to the relative motion of a wave source and an observer
When a wave overlaps with another wave
When a wave bounces off of another object
When a wave bends due to traveling through a different medium
Answer explanation
The Doppler Effect refers to the change in frequency of a wave as observed when the source of the wave and the observer are in relative motion. This is why the correct choice is about the change in frequency due to this motion.
Tags
NGSS.HS-PS4-1
NGSS.HS-PS4-5
6.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
When the car moves AWAY from you, its horn seems...
Low pitched
High pitched
Normal
Answer explanation
When the car moves away from you, the sound waves are stretched, causing the horn to sound lower in pitch. This phenomenon is known as the Doppler effect, which explains why the correct answer is 'Low pitched'.
Tags
NGSS.HS-PS4-1
7.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
When an ambulance move TOWARD you it sounds ________ pitched.
high
low
medium
Answer explanation
When an ambulance moves toward you, the sound waves are compressed, resulting in a higher pitch due to the Doppler effect. Therefore, the correct answer is 'high' pitched.
Tags
NGSS.MS-PS4-1
NGSS.MS-PS4-2
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