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TEST 8 CH 13 EM waves and Light optics U15

Total questions: 58

Worksheet time: 1hrs 23mins

Name
Class
Date
1.
This is an example of a __________ mirror.
a)
Concave
b)
Convex
c)
Plane
d)
Magnifying
2.
The point where the rays meet is known as....
a)
Fire
b)
the focal point
c)
refraction
d)
Plane of the lens
3.
This is an example of a _____________ mirror
a)
Concave
b)
Convex
c)
Plane
d)
Magnifying
4.

What is the ray of light that strikes the surface ?

a)

Incident ray

b)

reflected ray

c)

normal ray

d)

normal

5.

A flat mirror is an example of a ___.

a)

plane mirror

b)

concave mirror

c)

convex mirror

d)

spherical mirror

6.
The line that passes through the center of a curved mirror is called
a)
focal point
b)
center of curvature 
c)
principle axis
d)
light ray
7.
This image is.....
a)
inverted and smaller
b)
inverted and larger
c)
not inverted and smaller
d)
not inverted and larger
8.
What type of lens do humans have in their eyes? 
a)
Concave Lens 
b)
Convex Lens 
9.

What do a prism, a magnifying glass, a microscope, and eyeglasses ALL have in common.

a)

They are opaque

b)

They refract light

c)

They reflect light

d)

That are translucent

10.

Which image CORRECTLY shows how light behaves when it travels from air through glass?

a)
b)
c)
d)
11.

Eyeglasses bend light to help the image form properly on the retina. The bending of light as it passes from one medium to another is called

a)

diffraction

b)

interference

c)

reflection

d)

refraction

12.
All the colors that you can see make up the:
a)
visible spectrum
b)
light energy
c)
shadow
d)
prism
13.
A ___ lens makes objects appear bigger.
a)
concave
b)
convex
c)
prism
d)
flat
14.
Which is a manmade source of light?
a)
flashlight
b)
sun
c)
star
d)
fire
15.

Which part is #5?

a)

pupil

b)

iris

c)

cornea

d)

lens

16.

This structure is the back of the eye and it sends images to the optic nerve.

a)

Cornea

b)

Lens

c)

Retina

d)

Pupil

17.

Identify this structure

a)

iris

b)

lens

c)

pupil

d)

cornea

18.
This part of the eye carries the message from your eye to the part of your brain that controls vision. 
a)
cornea
b)
lens
c)
optic nerve
d)
retina
19.
The back of the eye;  an upside-down image of whatever you are looking at is projected here. 
a)
lens
b)
cornea
c)
pupi
d)
retina
20.
The lens of your eye is convex.  Because of this, what happens to light as it passes through the lens? 
a)
Light is absorbed. 
b)
Light is reflected. 
c)
Light is refracted.
d)
Light is transmitted. 
21.

Type of mirror that can produce an inverted image...

a)

Plane

b)

Convex

c)

Concave

22.

Type of mirror that provides a wide angle view...

a)

Plane

b)

Convex

c)

Concave

23.

The size of an object and its image are the same in this type of mirror...

a)

Plane

b)

Convex

c)

Concave

24.

According to the law of reflection the angle of incidence is ____________ the angle of reflection.

a)

less than

b)

greater than

c)

equal to

25.
Real images are :
a)
Always inverted
b)
Magnified or Diminished
c)
can be obtained on screen
d)
all the above
26.

Image behind the mirror is

a)

virtual

b)

real

c)

upside down

d)

upright

27.

image above the principal axis (PA) is

a)

virtual

b)

real

c)

upright

d)

upside down

28.

This ray diagram is for which mirror?

a)

concave

b)

convex

c)

plane

d)

window

29.
Which terms describe the reflection seen in this image?
a)
virtual, upright
b)
virtual, inverted
c)
real, upright
d)
real, inverted
30.

This image is showing a convex mirror because the image is (choose 2 answers)

a)

rays meeting behind the mirror

b)

rays meeting behind the mirror

c)

image is real

d)

image is virtual

31.

The size of the image formed in the figure is .............. the size of the object.

a)

larger than

b)

same as

c)

smaller than

32.

A ____?____ can be described as a disturbance that travels through a medium.

a)

ray

b)

particle

c)

wave

33.

As wavelength increases, frequency decreases, with frequency decreasing, energy increases.

a)

True

b)

False

c)

Insufficient data

34.

It is the entire range of wavelengths or frequencies of electromagnetic radiation

a)

electromagnetic waves

b)

electromagnetic spectrum

c)

electromagnetic collection

35.

EM Waves with the longest wavelength

a)

radio

b)

infrared

c)

gamma

d)

x-ray

36.

What does radar stand for?

a)

radio detection and ranging

b)

radial disemmination and ranging

c)

recorded detection and ranging

37.

Xrays and Gamma Rays have the highest frequencies, therefore, highest energies.

a)

True

b)

False

38.

FM stands for

a)

Frequency Metering

b)

Frequency Modulation

c)

Frequency Monitoring

d)

Frequency Making

39.

Select the correct order of waves on the EMS from low to high energy

a)

Radio, Micro, Infra, Visible, Ultra, X-ray, Gamma

b)

Gamma, X-ray, Ultra, Vis, Infra, Micro, Radio

c)

Vis, Micro, Infra, Ultra, X-ray, Gamma, Radio

d)

Micro, Radio, Vis, Infra, Ultra, X-ray, Gamma

40.

The _______________ determines the color of visible light.

a)

wavelength (and frequency)

b)

speed

c)

amplitude

d)

particles of the medium

41.

Put the visible light colors in order from SHORTEST wavelength (highest frequency) to longest wavelength (lowest frequency)

a)

Violet, Indigo, Blue, Green, Orange, Yellow, Red

b)

Red, Yellow, Green, Orange, Violet, Blue, Indigo

c)

Red, Orange, Yellow, Green, Blue, Indigo, Violet

42.

All electromagnetic waves are...

a)

transverse waves and have the same frequency

b)

transverse waves and have the same speed

c)

mechanical waves and have the same wavelength

d)

longitudinal waves and have the same energy

43.

A beam of light has a wavelength of 600 nm in air. What is the frequency of the light (c = 3x108 m/s)?

a)

5 x 1014 Hz

b)

2 x 1014 Hz

c)

3 x 1014 Hz

d)

6 x 1014 Hz

44.

Find the frequency of an electromagnetic wave with a wavelength 2.75 × 10–8 m.

a)

1.10 Hz

b)

1.09 × 1016 Hz

c)

9.17 × 1015 Hz

d)

9.17 × 1016 Hz

45.

Which of the following electromagnetic waves travels the fastest?

a)

gamma rays

b)

radio waves

c)

ultraviolet waves

d)

they all travel the same speed

46.

Mr. H catches the news on 780 AM, which broadcasts at 780. kHz. Determine the wavelength of these radio waves.

a)

3.85 x 105 m

b)

385 m

c)

3.85 x 104 m

d)

3.85 x 106 m

47.

Light waves travel the fastest in

a)

solid

b)

liquid

c)

gas

d)

vacuum of empty space

48.

Light waves travel the slowest in

a)

solid

b)

liquid

c)

gas

d)

vacuum of empty space

49.
This shows the phenomenon known as....
a)
reflection
b)
refraction
c)
mirrors
d)
focal point
50.
The velocity of light in vacuum is _______ m/s.
a)
3x108
b)
3x1012
c)
3x106
d)
3x1010
51.
Cell phones use_____________waves.
a)
Microwaves
b)
Gamma
c)
XRays
d)
Radio 
52.
The orange line is measuring the _________________________.
a)
wavelength
b)
amplitude
c)
crest
d)
trough
53.
The relationship between wavelength and frequency is λ=c/f.  Calculate the wavelength of light that has a frequency of 5.2 x 1012 1/s. The speed of of light is 3.0x 108 m/s.
a)
5.8 x 10 -5 m
b)
5.8 x 10 -7 m
c)
5.19 x 10 14 m
d)
1.56 x 10 23 m
54.
Solve this problems using the equation: 
C = λν
If an AM radio station broadcasts at
9.95 x 105 Hz, what is the wavelength of this radiation?
a)
6.59 x 10-28 m
b)
1.01 x 10-6 m
c)
3.32 x 10-3 m
d)
302 m
55.

Calculate the wavelength of light that has a frequency of 5.2 x 1012 1/s.

a)

5.8 x 10 -5 m

b)

5.8 x 10 -7 m

c)

5.19 x 10 14 m

d)

1.56 x 10 23 m

56.
What are the units of frequency?
a)
m/s
b)
s
c)
Hz
d)
m
57.

IRAS, the Infrared Astronomy Satellite launched by NASA in 1983, had a detector that measured infrared or heat radiation from different regions of space. What is the frequency of infrared light that has a wavelength of

1.10 X 10-6 m?

a)

3.67 x 10-15 Hz

b)

3.67 x 10-3 Hz

c)

2.73 x 102 Hz

d)

2.73 x 1014 Hz

58.

Which of the following has the highest energy?

a)

Infrared radiation

b)

Microwave radiation

c)

Radio waves

d)

Visible light