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unit 8 waves

Total questions: 19

Worksheet time: 11mins

Name
Class
Date
1.

what is a wave

a)

a repeating disturbance or movement that transfer enrgy

b)

has a medium and no energy

c)

it a thing you do at a sports game

d)

all above

2.

true or false Waves transmit matter

a)

true

b)

false

3.

in a (a)   wave, the disturbances moves perpendicular/ at a 90 angle to the direction of the wave

4.

What are the two names for the types of wave where the disturbances moves parallel to the direction of the wave

a)

compressional

b)

transvers

c)

mechanical

d)

longitudinal

5.

what shape are all electromagnetic waves

a)

compressional

b)

transvers

c)

sound

d)

mechanical

6.

most mechanical wave have a _______ shape. What is the only example of a wave that has a longitudinal shape? ________

a)

light

b)

sound

c)

energy

d)

transvers

7.

the energy of a wave is directly related to its

a)

frequency

b)

diffraction

c)

intensity

d)

amplitude

8.

is the numbers of waves passing a fixed point in a certain period of times how often a wave occurs

a)

refraction

b)

reflection

c)

frequency

d)

diffraction

9.

when lights ray hit a plane mirror, they bounce off of it according to the law of reflection a light rays hits the mirror at a 45 angle. at what angle will the light ray reflects off of the mirror

a)

90

b)

25

c)

19

d)

45

10.

_______ is the bending of light ray as it passes around a barrier or through an opening

a)

frequency

b)

wavelength

c)

through

d)

diffraction

11.

is the bending of the light at an angle other than 90 as it passes from one medium to another

a)

reflection

b)

diffraction

c)

interferences

d)

refraction

12.

when you hold your leg into a pool it looks like your legs are not attached at the knee's where they meet the water

a)

reflection

b)

interferences

c)

diffraction

d)

refraction

13.

you can hear someone's voice an open doorway even if you can't see them

a)

refraction

b)

interferences

c)

diffraction

d)

reflection

14.

Anthony voice echo's all over the stadium when announces football games

a)

refraction

b)

diffraction

c)

interferences

d)

reflection

15.

sound deadening earmuffs filter out the sound of loud machinery

a)

refraction

b)

reflection

c)

interfrences

d)

diffraction

16.

the color black (ABSORBS or REFLECTS) all wavelength of visible light. the color white (ABSORBS or REFELCTS) all wavelength of visible light

a)

b reflects

b)

b absorbs

c)

w reflects

d)

w absorbs

17.

why do the leaves appear green

a)

they absorbs the lights as green

b)

they are just the color green

c)

they reflect the color green

d)

non above

18.

when two waves come together and combine and form an even bigger wave. what is the called

a)

constructive interreferences

b)

all above

c)

non above

d)

reflects interference

19.

what all objects that would refract light

a)

prism

b)

magnifying glass

c)

lends

d)

all of above