
Understanding Parabolic Reflectors

Interactive Video
•
Physics
•
9th - 10th Grade
•
Hard
Jennifer Brown
FREE Resource
5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a key advantage of using a parabolic reflector over electronic amplification?
It is more portable.
It provides a noise-free mechanical amplification.
It is cheaper to produce.
It can record multiple sounds simultaneously.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does a parabolic reflector amplify sound?
By increasing the size of the microphone.
By reflecting sound waves to a focal point.
By using multiple microphones.
By electronically boosting the signal.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is necessary for effectively aiming a parabolic reflector?
A wide-angle lens.
A strong wind shield.
A good pair of headphones.
A high-powered amplifier.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a limitation of using a parabolic reflector?
It requires constant power supply.
It alters the sound by accentuating higher frequencies.
It is ineffective in open spaces.
It cannot record high frequencies.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a benefit of using a parabolic reflector for wildlife recording?
It allows for recording in complete silence.
It provides a high signal-to-noise ratio.
It can record underwater sounds.
It is the smallest type of microphone available.
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