REVIEW - Waves and Information

Which of these describes all waves?

• energy that moves from side to side

• energy that moves in a regular pattern

• energy that moves and object forward

• energy that moves an object backwards

Tags

NGSS.MS-PS4-1

What happens when waves move water across the surface of deep water?

• The water moves forward.

• The water moves backward.

• The water moves up and down.

• The water does not move.

When does water move in the direction of a wave?

• when a surfer sits on a surfboard

• when boats move through the water

• when waves move across the surface of deep water

• when the water gets close to the beach

What is amplitude?

• the distance from the middle point of a wave to the wavelength

• the distance from one crest to the next crest

• the distance from one trough to the next trough

• the distance between the middle point of a wave and the crest or trough

Tags

NGSS.MS-PS4-1

What is wavelength?

• the distance from the middle point of a wave to a trough

• the distance from the middle point of a wave to a crest

• the distance from one crest to the next or one trough to the next

• the distance from crest to trough

Tags

NGSS.HS-PS4-1

Which of these waves would transfer the most energy?

• one with a low crest

• one with a high trough

• one with a low amplitude

• one with a high amplitude

Tags

NGSS.MS-PS4-1

What does it mean if waves have short wavelengths?

• The distance from one trough to the next is small.

• The distance from one trough to the next is large.

• The distance from the middle point of a wave to the trough is small.

• The distance from one crest to the next trough is large.

Which of the following is an example of digitized information?

• 0101

• 1234

• ABCD

• 1A0B

Tags

NGSS.MS-PS4-3

Which of these is an example of transmitting information with digital code?

• sending a text on a cell phone

• using Morse code

• sending a letter through the mail

• talking to someone in the same room

Tags

NGSS.MS-PS4-3

Which of these would BEST transmit information over long distances and why?

• Morse code, it uses sound

• a cell phone, it uses digitized data

• hand signals, they can be easily understood

• facial expressions, they show how a person is feeling?

Tags

NGSS.MS-PS4-3