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WorksheetsPhysics Semester 1 Final Exam Review
Total questions: 72
Worksheet time: 1hrs 29mins
Name
Class
Date
1.
Two like charges
a)
neutralize each other.
b)
repel each other.
c)
must be neutrons.
d)
attract each other.
2.
The charge of an electron is
a)
positive.
b)
negative.
c)
Electrons have no charge
3.
An atom loses an electron. What type of charge does it have now?
a)
positive
b)
negative
4.
An atom gains an electron. What type of charge does it have now?
a)
positive
b)
negative
c)
No charge
5.
Insulators are different than conductors in that insulators ____.
a)
do not contain electrons or protons
b)
do not contain any charge
c)
have a weaker affinity for electrons
d)
do not allow charge to freely move
6.
A balloon is rubbed against a student's hair and then touched to a wall. The balloon sticks to the wall due to
a)
magnetic forces between the particles of the balloon and the particles of the wall
b)
electrostatic forces between the particles of the balloon and the particles of the wall
c)
magnetic forces between the particles of the wall
d)
electrostatic forces between the particles of the balloon
7.
An image that you can see , but does not really exist is called which of the following?
a)
Real Image
b)
Fake Image
c)
Virtual Image
d)
Digital Image
8.
Convex Mirrors produce...
a)
only virtual images
b)
virtual or real images
c)
only real images
d)
inverted images
9.
a real image...
a)
is produced by virtual rays and can be projected on a screen
b)
is produced by real rays and cannot be projected on a screen
c)
is produced by virtual images and cannot be projected on a screen
d)
is produced by real rays and can be projected on a screen
10.
Concave mirrors will produce...
a)
Real, erect images
b)
Virtual, inverted images
c)
Real, inverted images
d)
no images form
11.
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
12.
The point in the middle way between a curved mirror and the center of curvature is the
a)
principle point
b)
focal point
c)
center of curvature
d)
principle axis
13.
The focal length is equal to the:
a)
radius of curvature
b)
diameter of curvature
c)
half radius of curvature
d)
half diameter of curvature
14.
The Law of Reflection:
The angle of incidence is _________ the angle of reflection
The angle of incidence is _________ the angle of reflection
a)
bigger than
b)
the same as
c)
smaller than
15.
When light travels from air to water it....
a)
Speeds up
b)
Slows down
c)
stays the same speed
16.
How does light behave as it enters these mediums?
a)
continue its path as straight line.
b)
bends toward the normal
c)
bends away from the normal
d)
reflects
17.
Swimming pools and the ocean look shallower than they really are due to:
a)
reflection
b)
dispersion
c)
refraction
d)
total internal reflection
18.
Why does the lower part of the child appear so much different in size from the upper part?
a)
The light rays that travel through water and then into air are refracted.
b)
The light rays that travel through water and then into air are enlarged.
c)
The light rays that travel through air and then into water are reflected.
d)
The light rays that travel through air and then into water are reduced.
19.
This image is.....
a)
inverted and smaller
b)
inverted and larger
c)
not inverted and smaller
d)
not inverted and larger
20.
What are some uses for convex lenses?
a)
Eye glasses
b)
Camera lenses
c)
Telescopes
d)
All of the above
21.
Which does not describe rainbows?
a)
they are really spherical
b)
sunlight gets separated in raindrops
c)
sunlight is internally reflected in the rear of a raindrop
d)
all colors of light refract at the same angle
22.
A convex lens has a focal length f. If an object is placed at 2f at what distance will the image appear?
a)
2f
b)
f
c)
between f and 2f
d)
infinity
23.
Convex lenses can produce...
a)
Real, erect images
b)
Virtual, inverted images
c)
Real, inverted images
d)
no images form
24.
Which is the angle of refraction?
a)
Angle 1
b)
Angle 2
25.
What property of this wave is represented by the letter "A"
a)
amplitude
b)
crest
c)
trough
d)
wavelength
26.
What property of the wave is represented by the letter "B"?
a)
amplitude
b)
crest
c)
trough
d)
wavelength
27.
The highest point on a wave is:
a)
the crest
b)
the trough
c)
the top
d)
the coast
28.
The number of wavelengths that pass a point each per second is:
a)
frequency
b)
period
c)
longitudinal
d)
transverse wave
29.
When the frequency of a wave increases, what happens to the wavelength?
a)
The wavelength is not directly affected by the frequency of a wave.
b)
The wavelength increases.
c)
The wavelength decreases.
d)
More specific information is needed to form a conclusion about the wavelength.
30.
Which wave in the diagram has the greatest frequency?
a)
1
b)
2
c)
3
d)
4
31.
Which wave in the diagram has the greatest wavelength?
a)
1
b)
2
c)
3
d)
4
32.
Electromagnetic waves include the following except
a)
radio waves
b)
X-rays
c)
doing the wave at a football game
d)
microwaves
33.
regular disturbances that carry energy through matter or space
a)
crest
b)
energy
c)
wave
d)
trough
34.
Wanda bought a green coat. Which statement is true about her coat?
a)
Wanda’s coat is dispersing green light.
b)
Wanda’s coat is absorbing green light.
c)
Wanda’s coat is refracting green light.
d)
Wanda’s coat is reflecting green light.
35.
The apple is red all colors are absorbed except for red. This means that red is being _______ back to our eyes.
a)
refracted
b)
trasmitted
c)
reflected
d)
absorbed
36.
What are the three primary colours of light?
a)
Red,Yellow,Blue
b)
Red,Green,Yellow
c)
Red,Green,Blue
d)
Yellow,Blue,Green
37.
Mixing red and blue light gives you...
a)
Cyan
b)
Magenta
c)
Yellow
d)
Purple
38.
What color do you perceive when all of the primary colors of light are mixed together with an equal intensity?
a)
Black
b)
White
c)
Gold
d)
Silver
39.
Which color has the highest frequency?
a)
Blue
b)
Green
c)
Red
d)
Orange
40.
Which color has the longest wavelength?
a)
Blue
b)
Green
c)
Red
d)
Yellow
41.
Do you love Physics?
a)
Absolutely
b)
Only on Fridays
c)
Sometimes
d)
Worst class of the day
42.
Blue and yellow pigments are blended to make ____________ paint.
a)
purple
b)
orange
c)
green
d)
red
43.
What happens when two north poles of a magnet are placed together?
a)
they repel
b)
they attract
c)
they cancel each other out
d)
the strength of the magnet is doubled
44.
True or False: All metals stick to magnets.
a)
True
b)
False
45.
How is a permanent magnet DIFFERENT from a temporary magnet?
a)
A permanent magnet attracts materials made of iron.
b)
A permanent magnet has poles.
c)
A permanent magnet has a magnetic field.
d)
A permanent magnet keeps its magnetism for a long time.
46.
Earth acts like a giant magnet because its center is made up MOSTLY of
a)
granite
b)
limestone
c)
iron
d)
nickel
47.
What is our best evidence that Earth has a magnetic field?
a)
All things fall toward Earth's center
b)
A compass needle lines up with it
c)
Winds blow from east to west
d)
Earth's oceans all have currents
48.
Which of the following ways can cause a magnet to lose magnetic strength?
a)
Stroking it many times
b)
Coiling more turns around the magnet
c)
Heating it over a fire
d)
adding more batteries to a magnet
49.
Which one of the following would not make a stronger magnet through the electrical method?
a)
use more batteries
b)
coil a piece of wire around an iron object
c)
increase the number of coils of wire around the magnetic object
d)
decrease the number of coils of wire around the magnetic object
50.
Produces an electric current when a coil of wire wrapped around an iron core is rotated near a magnet.
a)
generator
b)
electric motor
c)
electromagnet
51.
Changes electrical energy into mechanical energy
a)
generator
b)
electric motor
c)
electromagnet
52.
What is this device?
a)
electromagnet
b)
generator
c)
electric motor
53.
Magnetic fields are produced by
a)
Electric Charges
b)
Electric Currents
c)
Gravitational Forces
d)
Water Currents
54.
What is the rule for current in a SERIES circuit?
a)
stays the same
b)
adds up
c)
inverse of the sum of the reciprocals
55.
What is the rule for voltage in a parallel circuit?
a)
stays the same
b)
adds up
c)
inverse of the sum of the reciprocals
56.
What is the rule for total voltage in a PARALLEL circuit?
a)
stays the same
b)
adds up
c)
inverse of the sum of the reciprocals
57.
What is the total resistance of a 5 ohm, 10 ohm, and 15 ohm resistor hooked up in SERIES?
a)
10 ohms
b)
0.5 ohms
c)
30 ohms
d)
2.7 ohms
58.
How much CURRENT does a 1200 W bread maker draw from a 110 V outlet?
P = IV
P = I2R
P = V2/R
P = IV
P = I2R
P = V2/R
a)
132000 amps
b)
0.09 amps
c)
1200 amps
d)
10.9 amps
59.
What is the total VOLTAGE of the circuit?
a)
10 V
b)
20 V
c)
40 V
d)
4 V
60.
If Illinois Power charges $0.0712/kWhr, how much would it cost to run a 9 kW garage heater for 3 days (72 hours)?
a)
$1.92
b)
$46.14
c)
$0.21
d)
$0.01
61.
According to Ohm's Law, current ___________ when voltage increases.
a)
increases
b)
decreases
c)
stays the same
62.
Type of circuit?
a)
series
b)
parallel
c)
combination
d)
none of the above
63.
Which statement about parallel circuits is false?
a)
if one light burns out, the others won't
b)
the voltages across each resistor are equal
c)
the current through each resistor adds up tot the total
d)
each branch has the same current
64.
What is the Current in the circuit ?
a)
.02 I
b)
.02 A
c)
.2 I
d)
.2 A
65.
What is the voltage across R3 in the circuit?
a)
9 V
b)
1000V
c)
.692 V
d)
None of the others
66.
What is the total resistance of a 5 ohm, 10 ohm, and 15 ohm resistor connected in SERIES?
a)
10 ohms
b)
0.5 ohms
c)
30 ohms
d)
2.7 ohms
67.
Used to measure current (I).
a)
Voltmeter
b)
Ammeter
c)
LED
d)
resistor
68.
Designed to melt and break the circuit is the current is too great.
a)
LDR
b)
Fixed resistor
c)
fuse
d)
diode
69.
A(n) ______________ is a reusable safety switch that breaks the circuit when the current gets too high.
a)
Fuse
b)
Grounded wire
c)
Fuse box
d)
Circuit breaker
70.
A circuit in which the electricity bypasses the resistors and the current increases too much possibly causing the wires to overheat
a)
Closed circuit
b)
Short circuit
c)
Load
d)
Fuses
71.
What happens to the total current in a parallel circuit as you add resistors?
a)
Increases
b)
Decreases
c)
Nothing
d)
A black hole
72.
a pair of 15-watt computer speakers are connected to a 12-volt power supply. what is the electric current running through the speakers?
a)
1.25 A
b)
0.8 A
c)
12.5 A
d)
180 A
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