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WorksheetsPhysical Science Review
Total questions: 73
Worksheet time: 37mins
Name
Class
Date
1.
The pitch of a sound is most closely related to...
a)
frequency of the sound waves
b)
distance from the sound source
c)
medium through which the sound travels
d)
intensity of the sound
2.
The __ of an object consists of the speed and direction.
a)
velocity
b)
instantaneous speed
c)
average speed
d)
displacement
3.
The brightness of a light bulb is determined by its filament's
a)
voltage
b)
amperes
c)
watts
d)
resistance
4.
Which of these affects the speed of sound?
a)
loudness
b)
resonance
c)
temperature
d)
direction
5.
The speed of a sound wave
a)
depends on wavelength
b)
depends on the medium
c)
depends on amplitude
d)
none of the above
6.
Peter runs in a constant direction on a straight road. The velocity v. time graph of Peter's motion shows a straight line with a negative slope. What does the line tell you about Peter's speed?
a)
it is increasing
b)
it is decreasing
c)
it is decreasing, then increasing
d)
it is constant
7.
The force of gravity, the electromagnetic force, the strong nuclear force, and the weak nuclear force are considered
a)
centripetal forces
b)
frames of reference
c)
resultant forces
d)
fundamental forces
8.
Waves travel quickly in a __ because the molecules are closely packed and bonded together.
a)
solid
b)
liquid
c)
gas
d)
none of the above
9.
A tug-of-war that results in one team pulling the other across the line is an example of
a)
action forces
b)
reaction forces
c)
balanced forces
d)
unbalanced forces
10.
Water waves
a)
transport energy and water
b)
transport energy but not water
c)
transport water but not energy
d)
are not mechanical waves
11.
If the net force on an object is zero then the object has
a)
reaction forces
b)
action forces
c)
balanced forces
d)
unbalanced forces
12.
Light demonstrates particle characteristics when it
a)
knocks electrons off a metal surface
b)
passes through a narrow opening
c)
forms standing waves
d)
all of the above
13.
___ is the ratio of useful work output to work input
a)
Potential energy
b)
Efficiency
c)
Kinetic energy
d)
Power
14.
Our eyes can detect light only within a range of ___ called visible light.
a)
frequencies
b)
speed
c)
mediums
d)
periods
15.
The Doppler Effect is an observed change in a wave's
a)
wavelength
b)
period
c)
amplitude
d)
frequency
16.
Which type of electromagnetic waves has the highest frequency?
a)
Gamma rays
b)
UV rays
c)
Infrared
d)
Microwaves
17.
A virtual image
a)
appears in front of a mirror
b)
appears behind a mirror
c)
diffuses light
d)
reflects light
18.
The law that states for ever action force there is an equal and opposite reaction force is
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Law of conservation of momentum
19.
A wheelbarrow is an example of a
a)
first-class lever
b)
second-class lever
c)
third-class lever
d)
fourth-class lever
20.
When gravitational forces and air resistance equalize on an object that is falling toward Earth and the object stops accelerating, what is the velocity of an object called?
a)
resultant velocity
b)
terminal velocity
c)
instantaneous velocity
d)
average velocity
21.
The SI unit for speed is
a)
mph
b)
m/s
c)
ft/s^2
d)
v/t
22.
Which straight-line acceleration indicates an increase in speed
a)
0
b)
-15
c)
4
d)
all of the above
23.
Sound waves are
a)
transverse waves
b)
longitudinal waves
c)
circular waves
d)
polarized waves
24.
The law that states that the unbalanced force acting on an object equals the object's mass times its acceleration is
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Law of conservation of momentum
25.
Levers are divided into __ classes based on the location of the fulcrum and of the input and output forces.
a)
2
b)
3
c)
4
d)
5
26.
The rate at which energy flows through a given space describes light
a)
resonance
b)
pitch
c)
intensity
d)
interference
27.
The combination of all forces acting on an object is called the
a)
total force
b)
union of forces
c)
super force
d)
net force
28.
Which of the following is a disadvantage of nuclear energy as a power source?
a)
Nuclear energy produces less energy than coal burning
b)
Nuclear energy produces air pollution
c)
Nuclear waste must be safely stored
d)
The fuel source is very limited
29.
Potential differences cause
a)
electrons to move from positive terminal to negative
b)
electrons to move from negative terminal to positive
c)
protons to move from positive terminal to negative
d)
protons to move from negative terminal to positive
30.
On a distance v. time graph of an object's motion, distance is usually
a)
plotted on the x-axis
b)
greater than time
c)
the dependent variable
d)
measured in ft/min
31.
Light rays reflecting off a smooth surface reflect
a)
in one new direction
b)
in the initial direction
c)
in random directions
d)
none of the above
32.
What happens immediately after a sky diver opens her parachute?
a)
air resistance greatly increases
b)
the sky diver is in free fall
c)
the sky diver's speed greatly increases
d)
the force of gravity greatly increases
33.
The maximum displacement of a particle by a wave is called
a)
amplitude
b)
wavelength
c)
frequency
d)
period
34.
Which of the following has the lowest resistance?
a)
semiconductor
b)
superconductor
c)
conductor
d)
insulator
35.
Resonance amplifies the sound of a guitar when the
a)
guitar string and body are both vibrating with the same frequency
b)
intensity of a sound decreases over time
c)
pitch of a note is compared with a pure tone
d)
vibration of a string or column of air causes a standing wave
36.
Appliances connected so they form a single pathway for charges to flow are connected in a(n)
a)
series circuit
b)
parallel circuit
c)
open circuit
d)
closed circuit
37.
The nuclear power used for electricity is produced by
a)
fusion
b)
fission
c)
chemical reactions
d)
radon gas
38.
__ is deifned as the rate at which work is done.
a)
Power
b)
Joule
c)
Speed
d)
Mechanical Advantage
39.
What is the mechanical advantage of a single pulley?
a)
1
b)
1.5
c)
2
d)
3
40.
Because its molecules are far apart, sound waves will travel slowly through
a)
cold air
b)
water
c)
iron
d)
copper
41.
What is the unbalanced force that slows down a ball rolling across the floor?
a)
friction
b)
gravity
c)
inertia
d)
momentum
42.
On a speed-time graph, a line with a negative slope indicates that the object is
a)
speeding up
b)
slowing down
c)
not moving
d)
traveling at a constant speed
43.
The color that an object appears to be depends on
a)
the angle of reflection
b)
use of additive colors
c)
wavelengths of light reaching your eye
d)
speed at which light reaches it
44.
When light moves from a material in which its speed is higher to a material in which its speed is lower it is
a)
bent toward the normal
b)
bent away from the normal
c)
reflected off the boundary
d)
changed into a virtual image
45.
Which of the following is an advantage of nuclear energy as a power source?
a)
nuclear waste is not radioactive
b)
nuclear plants are low in cost
c)
nuclear energy does not produce air pollution
d)
waste can be stored anywhere
46.
If the net force acting on a stationary object is zero, then the object will
a)
accelerate in the direction of the strongest force
b)
remain at rest
c)
begin moving backwards
d)
decelerate at a steady rate of speed
47.
The amount of energy in a photon of light is proportional to the
a)
medium through which it travels
b)
shape of the light wave it creates
c)
speed of the corresponding light wave
d)
frequency of the corresponding light wave
48.
If a transverse wave is moving from right to left the individual particles of the medium are moving
a)
right to left
b)
left to right
c)
up and down
d)
none of the above
49.
Waves are often caused by
a)
potential energy
b)
mechanical energy
c)
colliding objects
d)
vibrating objects
50.
The law of reflection says the angle of incidence is __ the angle of reflection.
a)
greater than
b)
less than
c)
equal to
d)
none of the above
51.
Which equation is correct?
a)
w=mg
b)
w=m/g
c)
w=g/m
d)
w=g+m
52.
___ is the inverse of period.
a)
Wavelength
b)
Crest
c)
Frequency
d)
Amplitude
53.
Light demonstrates wave characteristics when it is
a)
reflected
b)
refracted
c)
diffracted
d)
all of the above
54.
White light separates into different colors when passed through a prism becaues of
a)
differences in wave speed
b)
total internal dispersion
c)
reflection
d)
droplets in the air
55.
As a dropped penny falls toward the ground, __ energy is converted into __ energy.
a)
thermal, potential
b)
kinetic, vibrational
c)
kinetic, heat
d)
potential, kinetic
56.
Which type of radiation is used to kill cancer cells?
a)
microwaves
b)
gamma rays
c)
UV rays
d)
sunlight
57.
Speeding up, slowing down, and changing direction is best described as
a)
veloicty
b)
distance
c)
displacement
d)
acceleration
58.
Fusion produces __ nuclei.
a)
same-sized
b)
smaller
c)
larger
d)
all of the above
59.
The __ is the time it takes for one full vibration of a particle in a medium.
a)
period
b)
frequency
c)
amplitude
d)
wave speed
60.
The electric force between two objects __ when distance between them decreases.
a)
increases
b)
decreases
c)
remains constant
d)
none of the above
61.
Average speed is represented by
a)
distance/time
b)
distance x time
c)
time-distance
d)
time+distance
62.
What are the two families of simple machines?
a)
wedge and compound
b)
first and second class
c)
inclined plane and lever
d)
pulley and screw
63.
A circuit breaker acts as a switch creating a(n) ___ circuit when current is too high.
a)
closed
b)
sweries
c)
open
d)
parallel
64.
An apple appears red to your eye because it
a)
emits red light
b)
absorbs red light
c)
reflects red light
d)
distorts red light
65.
Net force is
a)
the force acting in the same direction as an object's movement
b)
the force acting in the opposite direction of an object's movement
c)
the combination of all the forces acting on an object
d)
the force of gravity pulling an object down
66.
Water surface waves are
a)
longitudinal and perpendicular
b)
transverse and horizontal
c)
transverse and longitudinal
d)
vertical and horizotnal
67.
At the top of its arc, a thrown ball has __ potential energy.
a)
maximum
b)
minimum
c)
zero
d)
average
68.
If the loop of a wire moves in and out of a magnetic field, a )) is induced.
a)
voltage
b)
current
c)
force
d)
charge
69.
An object experiencing balanced forces
a)
has a net force of zero
b)
is speedingup
c)
is slowing down
d)
stops moving
70.
The law that states that every object maintains constant velocity unless acted on by an unbalanced force is
a)
Newton's 1st law
b)
Newton's 2nd law
c)
Newton's 3rd law
d)
conservation of momentum
71.
The gravitational force between two objects depends on masses of objects and
a)
accelerations
b)
distance between them
c)
speed of objects
d)
size of objects
72.
Light waves are
a)
transverse waves
b)
longitudinal waves
c)
rotating waves
d)
circulat waves
73.
Light rays that pass through a lens change direction because
a)
of internal reflection
b)
they are refracted
c)
light is broken up into many different colors
d)
virtual images always appear slightly larger than real images
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