P12: L6 - Uses of Ultrasound

Which mammal uses sonar to detect objects in the dark?

• Mouse
• Dog
• Bat

You cannot hear ultrasound because it is:

• too loud
• too quiet
• high frequency
• low frequency

Tags

NGSS.HS-PS4-1

Sound travels at 1400m/s in water. If a ship sends a sonar signal to map the bottom of the ocean and it returns after 2 seconds, how deep is the ocean?

• 700m
• 1400m
• 2800m
• 6000m

What is ultrasound mostly used for ?

• Shipping
• Military
• Medical use
• Firefighter

Tags

NGSS.HS-PS4-1

 The sonar that boats use for ultrasound is to determine the distance that an object is underwater.

• True
• False

What frequency range represent the human hearing capacity

• Below 20 Hz
• Between 20 Hz and 20 000 Hz
• Between 20 000Hz and 40 000 Hz
• Above 20 000 Hz

Ultrasound waves are sound waves that are too low pitched for the human ear to hear.

• True

• False

Ultrasound occurs at frequencies above 20,000 Hz.

• True

• False

Tags

NGSS.MS-PS4-1

Which of these animals use(s) echolocation? Choose all that apply.

• bats

• dolphins

• elephants

• cats

• owls

Which type of vibrations have the HIGHEST amount of energy?

• infrasound

• sound

• ultrasound

• They all have the same

  amount of energy.

Tags

NGSS.MS-PS4-1