
Ultrasound
Interactive Video
•
Physics
•
9th - 10th Grade
•
Practice Problem
•
Hard
Wayground Content
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is one reason dogs are considered to have heightened senses?
They can fly.
They can hear sounds that humans cannot.
They can see in the dark.
They can smell colors.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
At what frequency does the human hearing range start?
20 Hertz
100 Hertz
50 Hertz
10 Hertz
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the upper limit of the human hearing range?
25 kilohertz
20 kilohertz
15 kilohertz
10 kilohertz
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the term for sound frequencies below 20 Hertz?
Hypersound
Supersound
Infrasound
Ultrasound
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which animals are known to use ultrasound for navigation?
Lions
Elephants
Bats
Cats
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is ultrasound preferred over X-rays in some medical examinations?
It does not harm tissues or cells.
It is faster.
It is cheaper.
It is more colorful.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How are cracks in machinery detected using ultrasound?
By measuring temperature changes
By observing color changes
By listening for echoes
By detecting reflected ultrasound waves
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