Physics Waves

An electromagnetic wave is different than a mechanical wave in that an electromagnetic wave _____ (unlike a mechanical wave).

• can propagate through a region void of matter

• has a non-measurable speed

• can travel through a variety of media

• has a constant speed when traveling through any medium

Which of the following electromagnetic waves has the lowest frequencies? 

• ultraviolet

• visible light

• microwaves

• X-ray

Which diagram - A, B, C, or D - represents the appropriate hand movements and patterns for a longitudinal wave?

• A

• B

• C

• D

Tags

NGSS.MS-PS4-1

Which diagram - A, B, C, or D - represents the appropriate hand movements and patterns for a transverse wave?

• A

• B

• C

• D

Tags

NGSS.MS-PS4-1

A wave is present in a slinky.  A coil of the slinky makes 12 complete up and down cycles of vibration in 4 seconds.  The period of this wave is _____ and the frequency is _____.

• 4 seconds;  3 Hz

• 3 seconds;    

  0.333 Hz

• 4 seconds; 0.25 Hz

• 0.333 seconds;    

  3 Hz

Tags

NGSS.HS-PS4-1

The speed of a wave depends upon the ____. 

• frequency of the wave

• wavelength of the wave

• properties of the medium

• period of the wave

Tags

NGSS.HS-PS4-1

Two waves - wave A and wave B - are introduced into two Slinkies having identical properties.  Wave A has a frequency of 4 Hz and an amplitude of 50 cm.  Wave B has a frequency of 2.5 Hz and an amplitude of 50 cm.   Which wave is likely to have the greatest speed?

• Wave A

• Wave B

• both have the same speed

• it is impossible to tell without more information

Tags

NGSS.HS-PS4-1

Mac and Tosh are creating waves using a 3-inch zinc-coiled Slinky.  If they double the frequency of the waves which they are creating  (without any alteration in the medium), then one can be sure that ____.

• the speed will double

• the wavelength will double

• the speed will halve

• the wavelength will halve

Tags

NGSS.HS-PS4-1

A transverse wave is transporting energy from north to south. The particles of the medium will move

• both north and south

• only north to south

• both east and west

• only west to east

Two waves are traveling through a container of an inert gas. Wave A has an amplitude of 0.1 cm. Wave B has an amplitude of 0.2 cm. The energy transported by wave B must be __________ the energy transported by wave A.

• double

• 4 times greater

• 9 times greater

• 8 times greater

Tags

NGSS.HS-PS4-1