Waves Unit Test

Which of the following was NOT used to transmit information using Morse Code?

• a telegraph

• pencil and paper

• a flashlight

• a keyboard

In which medium will sound waves travel the fastest?

• air

• water

• cement

• space

A clear piece of glass or plastic through which light travels is described as_____________.

• opaque

• translucent

• transparent

• reflective

Tags

NGSS.MS-PS4-2

The height of a sound wave from a resting midpoint to crest is called its____________.

• wavelength

• frequency

• altitude

• amplitude

Tags

NGSS.MS-PS4-1

Which BEST describes how computers send messages?

• as patterns of ones and zeros

• as light waves through the air

• as patterns of sound waves

• as Morse Code messages

Tags

NGSS.MS-PS4-3

As the amplitude of a sound wave increases, its_____________.

• pitch decreases

• volume decreases

• pitch increases

• volume increases

Tags

NGSS.MS-PS4-1

Which wave pattern below shows the greatest frequency?

• A

• B

• C

• D

Tags

NGSS.MS-PS4-1

A loud, high-pitched sound would have which of the following properties?

• Short wavelength, low amplitude

• long wavelength, low amplitude

• short wavelength, high amplitude

• long wavelength, high amplitude

Tags

NGSS.MS-PS4-1

Why are sounds not heard in space?

• Space is too cold for sound waves to travel.

• There is too much matter to travel through in space.

• Space is a vacuum with few particles to travel through.

• Energy cannot travel in space.

A method of communication that uses short and long signals to represent letters called___________________.

• echolocation

• Morse Code

• Binary Code

• computer programming

Tags

NGSS.MS-PS4-3