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WorksheetsReview unit 10 & 11
Total questions: 51
Worksheet time: 2hrs 39mins
Name
Class
Date
1.
Which is NOT true of real images?
a)
Real image appears inverted
b)
Real image cannot be obtained on a screen
c)
In the case of mirrors, real image lies in front
d)
In the case of lenses, real image lies on the other side of the object
2.
At night, you see a jet flying through the sky at 30,000 feet (or 9150 meters.) You know it is a jet because of the lights that blink. How long does the light take to get from the jet to you if you are looking straight up at the jet?
a)
2.75 x1012 sec
b)
3.27 sec
c)
3.27 x104 sec
d)
3.05 x10-5 sec
3.
Achromatic lens are constructed to avoid which undesirable effect?
a)
interference fringes
b)
spherical aberrations
c)
the photoelectric effect
d)
chromatic aberrations
4.
Which of the following has the shortest wave length?
a)
Blue light
b)
X Rays
c)
Bluetooth ®
d)
FM Radio
5.
A lab group places a candle on an optics bench. It is 10 cm from a converging lens. They focus a real image 30 cm away. What is the focal length of the lens?
a)
0.133 cm
b)
40 cm
c)
7.5 cm
d)
20 cm
6.
The scattering of light off a rough surface.
a)
refraction
b)
dispersion
c)
diffuse reflection
d)
photoelectric effect
7.
Which of the following are not electromagnetic waves?
a)
Radio waves
b)
Microwaves
c)
X rays
d)
Sound waves
8.
An effect that makes images formed by some spherical lenses and mirrors appear fuzzy.
a)
spherical aberration
b)
chromatic aberration
c)
atomic aberration
d)
virtual aberration
9.
The condition where the focal length of the eye is too long is called ____ .
a)
nearsightedness
b)
virtual image
c)
critical angle
d)
farsightedness
10.
Why would a wave change direction?
a)
Because it kept traveling through the same medium
b)
Because it went from one medium to another
c)
the amplitude was too large
d)
the frequency was too small
11.
All waves carry
a)
energy
b)
light
c)
matter
d)
particles
12.
The number of waves that pass in a certain amount of time is called
a)
frequency
b)
wavelength
c)
crest
d)
amplitude
13.
This image produced by light...
a)
proves that light is a wave
b)
establishes that light travels in tiny packets of energy
c)
shows that light acts like a particle
d)
is frequently made by brake lights on automobiles
14.
A diffraction pattern ...
a)
results from the photoelectric effect.
b)
results from constructive and destructive interference.
c)
proves that light is a particle.
d)
explains that all matter is a wave, according to de Broglie.
15.
Which letter represents amplitude?
a)
A
b)
B
c)
C
d)
D
16.
Which letter represents the wave crest?
a)
A
b)
B
c)
C
d)
D
17.
The pencil in the cup of water appears broken because...
a)
it is broken
b)
of diffraction
c)
of refraction
d)
of reflection
18.
This picture demostrates...
a)
Diffraction
b)
Reflection
c)
Polarization
d)
Jump rope
19.
The emission of electrons by certain metals when they are exposed to electromagnetic radiation.
a)
photoelectric effect
b)
luminous source
c)
spherical aberration
d)
transluscent
20.
What do you see when water droplets refract and diffract sunlight?
a)
thunderstorm
b)
eclipse
c)
rainbow
d)
clouds
21.
Name the type of wave that matter moves at right angles to the direction of the wave?
a)
compressional waves
b)
mechanical waves
c)
transverse waves
d)
ultraviolet rays
22.
Which letter represents wavelength?
a)
A
b)
B
c)
C
d)
D
23.
What does it mean to refract?
a)
bounce off
b)
to bend
c)
curve outward
d)
reflect
24.
A ray of white light passes through a prism. On the other side of the prism, you see a rainbow. What is this phenomenon called?
a)
Reflection
b)
Refraction
c)
Medium
d)
Dispersion
25.
What happens when light hits a mirror?
a)
it makes a color
b)
it reflects
c)
it makes a rainbow
d)
it passes through
26.
A green light has a wavelength of 520 nm (5.20x10-7 m). What is the frequency of this light?
a)
1.73 X 10-15 Hz
b)
5.77 X 1014 Hz
c)
576,923 Hz
d)
156 Hz
27.
A lab group is measuring optic behaviors. They have a lens with a known focal length of 12.0 cm. If they place a burning candle 20.0 cm from the lens, predict the image distance.
a)
7.5 cm
b)
32.0 cm
c)
8.0 cm
d)
30.0 cm
28.
Light is ...
a)
a particle
b)
a wave
c)
both a particle and a wave
d)
none of these
29.
Which of the following is NOT a feature or characteristic of additive color theory?
a)
Mixing all the colors will make white
b)
This theory is based on the colors cyan, magenta, and yellow
c)
The absence of color results in black
d)
An example is a white light bulb
30.
Which of the following has the next to the highest frequency?
a)
AM RADIO
b)
GREEN LIGHT
c)
MICROWAVES
d)
GAMMA RAYS
31.
What is an electric charge that builds up on a material?
a)
electric charge
b)
static electricity
c)
negatively charged
d)
positively charged
32.
What is matter that has the same number of positive and negative charges?
a)
positively charged
b)
negatively charged
c)
electrically neutral
d)
static electricity
33.
What is matter that has more negative than positive charges?
a)
electric charges
b)
negatively charged
c)
positively charged
d)
static electricity
34.
What is matter that has more positive than negative charges?
a)
negatively charged
b)
positively charges
c)
electrical charges
d)
static electricity
35.
How do like charges act on each other?
a)
Like charges repel
b)
Like charges attract
c)
Like charges build up
d)
Like charges are neutral
36.
How do unlike charges act on each other?
a)
Unlike charges attract
b)
Unlike charges repel
c)
Unlike charges are neutral
d)
Unlike charges build up
37.
What are negative charges attracted to?
a)
Other negative charges
b)
Positive charges
c)
dust
d)
Neutral charges
38.
How can you move negative charges from one electrically neutral object to another?
a)
Heat it
b)
Freeze it
c)
Rub it
d)
Blow air on it
39.
How might you cause negative charges to build up on your body?
a)
Laughing too much
b)
Rubbing you hands together
c)
Rubbing your feet on carpet
d)
Combing your hair
40.
What will you likely see during an electrical discharge?
a)
A rainbow
b)
A spark
c)
Red
d)
Moisture
41.
What are like charges?
a)
Charges that opose
b)
nothing
c)
charges that attract
d)
Charges that love each other
42.
What are unlike charges?
a)
Charges that oppose each other.
b)
ememies
c)
Charges that attract.
43.
The release of electricity stored in a source
a)
Electric force
b)
Electric Charge
c)
Electric Discharge
d)
Electric Current
44.
a region around a charged particle or object within which a force would be exerted on other charged particles or objects.
a)
Electric force
b)
Electric field
c)
Electric discharge
d)
Electrical conductor
45.
Calculate the force exerted between two charged objects separated by a distance of 0.6 m. One object has a charge of -5 C and the other has a charge of +2.0 C.
a)
-1.5E-11 N
b)
2.5E-11 N
c)
-2.5E11 N
d)
-7.5E-10 N
46.
If each of the charges doubles, what happens to the force?
a)
Quadruples
b)
Doubles
c)
Stays the same
d)
Reduced by half
47.
If the distance doubles, what happens to the force?
a)
Reduced by half
b)
Reduced by 1/4
c)
Stays the same
d)
Quadruples
48.
Electrostatic force F is directly proportional to:
a)
r^2 (distance squared)
b)
q1
c)
q2
d)
both q1 and q2
49.
Who is this?
a)
Robert Andrews Millikan
b)
Thomas Jeffereson
c)
Albert Einstein
d)
James Chadwick
50.
What was Millikan most famous for?
a)
Discovery of a proton
b)
Oil Drop Experiment
c)
Discovery of the neutron
d)
Law of Gravity
51.
What determined the size of the charge of the electron?
a)
It was never determined
b)
Oil drop experiment
c)
Electron experiment
d)
None of the above
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