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WorksheetsPhysical Science Midterm Review
Total questions: 100
Worksheet time: 3hrs 47mins
Name
Class
Date
1.
What is the final velocity of a tennis ball that is dropped from a roof top after 5 seconds?(acceleration = final velocity - initial velocity / time)
a)
1.96 m/s2
b)
1.96 m/s
c)
49 m/s2
d)
49 m/s
2.
The x-rays range between ____.
a)
radio waves and infrared rays.
b)
infrared rays and ultraviolet rays.
c)
radio waves and visible light
d)
ultraviolet rays and gamma rays
3.
Which of the following BEST describes why someone may NOT be able to lift a full wheelbarrow by its handles?
a)
The resistance force is not great enough to overcome the effort force.
b)
The effort force is not great enough to overcome the resistance force.
c)
The effort force is not great enough to raise the fulcrum.
d)
The resistance force is not great enough to raise the fulcrum
4.
Electromagnetic radiation with the longest wavelengths is ____.
a)
gamma rays
b)
x-rays
c)
microwaves
d)
radio waves
5.
What is the velocity of golf ball with a mass of 0.8 kg and 200 J of kinetic energy? (KE = 1/2 mass x velocity2)
a)
15.8 m/s
b)
22.4 m/s
c)
16,000 m/s
d)
125 m/s
6.
When light is reflected from a surface, as the angle of incidence decreases, the angle of reflection ____.
a)
increases
b)
decreases
c)
stays the same
d)
cannot be determined
7.
If the length of a frictionless ramp being used to lift a heavy box onto a porch is halved, the effort force will _?_.
a)
remain the same.
b)
double.
c)
halve.
d)
quadruple.
8.
When two or more simple machines work together a _?_ is formed.
a)
complex machine
b)
compound machine
c)
block and tackle
d)
none of these
9.
Brian uses 8,400 J of work to push a box 28 meters. How much force did he use to move the box? (Work = Force x distance)
a)
300 N
b)
300 J
c)
235, 200 J
d)
235, 200 N
10.
Which block and tackle pulley system(s) has a mechanical advantage of 3?
a)
A only
b)
B and C only
c)
D and E only
d)
none of these
11.
What is the mechanical efficiency of a block and tackle system if you put in 9, 000 J of work and the machine puts out 3, 800 J of work? (M.E. = work output / work input x 100)
a)
2.4%
b)
cannot be determined
c)
237%
d)
42.2 %
12.
An object in freefall seems to be _?_.
a)
warped.
b)
weightless.
c)
decreased in size.
d)
increased in size.
13.
Cold air sinks because, compared to hot air, _?_.
a)
it is more dense.
b)
it is less dense.
c)
it has more molecules.
d)
it has less molecules.
14.
What type of simple machine is this?
a)
wheel and axle
b)
pulley
c)
3rd class lever
d)
2nd class lever
15.
A high speed train travels with an average speed of 88 km/h for 228 km. How long does the train travel? ( speed = distance / time) (s = d /t)
a)
2.6 h
b)
20, 064 h
c)
0.4 h
d)
cannot be determined
16.
Through which of the following will convection most likely occur?
a)
solids and liquids
b)
solids and gases
c)
liquid and gases
d)
liquids only
17.
What color(s) are being reflected from this shirt?
a)
red, orange, yellow, blue, indigo, violet
b)
green
c)
red, orange, and violet
d)
yellow and orange
18.
Suppose two waves collide and the temporary combined wave that results is larger than the original waves. What term best describes this interaction?
a)
constructive interference
b)
destructive interference
c)
standing wave formation
d)
resonance
19.
Energy travels from the Sun as _?_ energy.
a)
solar
b)
light
c)
electromagnetic
d)
thermal
20.
What type of optical is this and what does it do?
a)
convex mirror; reflects and diverges light
b)
concave mirror; reflects and converges light
c)
convex lens; refracts and diverges light
d)
concave lens; refracts and converges light
21.
What kind of mirror is demonstrated in the picture?
a)
convex
b)
plane
c)
concave
22.
What kind of optical is this and what is it doing?
a)
convex mirror; reflects and converges light
b)
convex lens; refracts and converges light
c)
concave mirror; reflects and diverges light
d)
concave lens; refracts and diverges light
23.
What kind of optical is this and what is it doing?
a)
concave mirror; reflects and diverges light
b)
concave lens: refracts and diverges light
c)
convex mirror; reflects and converges light
d)
convex lens; refracts and converges light
24.
What kind of nuclear reaction is this and where does it occur?
a)
nuclear fusion; nuclear power plants
nuclear fusion; nuclear power plants
nuclear fusion; nuclear power plants
b)
nuclear fusion; sun/stars
c)
nuclear fission; nuclear power plants
d)
nuclear fission; sun/stars
25.
What type of nuclear reaction is this and where does it occur?
a)
nuclear fission; nuclear power plants
b)
nuclear fission; sun/stars
c)
nuclear fusion; nuclear power plants
d)
nuclear fusion; sun/stars
26.
What are the control rods made of?
a)
calcium
b)
carbonate
c)
chromium
d)
cadmium
27.
What are the fuel rods made of?
a)
cadmium
b)
uranium
c)
hydrogen
d)
barium
28.
The picture is showing what type of thermal energy transfer?
a)
radiation
b)
conduction
c)
convection
29.
The man is sitting in front of an electric heater. The man is getting thermal energy by _?_.
a)
convection
b)
conduction
c)
radiation
30.
The pans are getting thermal energy by _?_.
a)
convection
b)
conduction
c)
radiation
31.
Which statement best explains why there is no change in temperature once thermal equilibrium is reached between 2 objects in contact?
a)
Heat flows by conduction, convection, & radiation when the temperatures are the same.
b)
Heat does not flow spontaneously from the cooler objects to the warmer object.
c)
Heat can flow between 2 objects in contact.
d)
Heat does not flow between objects in contact at the same temperature.
32.
According to the law of conservation of energy, the total amount of energy in the universe ____.
a)
is increasing.
b)
is decreasing.
c)
remains constant.
33.
All objects have inertia defines ___.
a)
Charles' law
b)
Newton's 1st law
c)
Newton's 2nd law
d)
Newton's 3rd law
34.
In which state of matter are the forces of attraction among the particles is so that they can only vibrate?
a)
liquid
b)
gas
c)
solid
d)
plasma
35.
In which state of matter are the forces of attraction so weak among the particles that the force is negligible?
a)
liquid
b)
gas
c)
plasma
d)
solid
36.
According to Boyle's law, at constant temperature, as the pressure of a given sample of gas is increased, the volume will –
a)
Increase
b)
Decrease
c)
Remains the same
37.
As per Charles' Law if temperature of any gas is increased its volume will -
a)
increase
b)
decrease
c)
remains the same
38.
In following diagram A, B, C, and D the arrows are showing –
a)
Decrease in energy thus more particle movement during change in state of matter
b)
Increase in energy thus less particle movement during change in state in state of matter
c)
Decrease in energy thus less particle movement during change in state of matter.
d)
Increase in energy thus more particle movement in each new state than before during the change in the state of matter.
39.
A place or object used for comparison to determine if another object is in motion is called a
a)
comparison point
b)
reference point
c)
point of view
d)
motion detector
40.
Calculate the distance if a cheetah runs 12 m/s in 10 seconds.
a)
1.2 s
b)
1.2 m
c)
120 s
d)
120 m
41.
A roller coasters accelerates from an initial velocity of 6.0 m/s to a final velocity of 70 m/s over 4 seconds. What's the acceleration?
a)
19 m/s2
b)
19 m/s
c)
16 m/s2
d)
16 m/s
42.
When a car goes around a corner at 20 mph, why do we say it accelerates?
a)
The car is accelerating because of the velocity is constant
b)
The car accelerates because it's going 20 mph
c)
Cars always accelerate when they are in motion
d)
The car is accelerating because it's changing direction
43.
If the mass of an object is 1000 kg on Earth, what is it's mass on the moon?
a)
10kg
b)
100kg
c)
1000kg
d)
10,000kg
44.
What is the definition of "weight"?
a)
the force in which gravity pulls on an object
b)
the time it takes to get on a ride
c)
the amount of matter in an object
d)
the size of an object
45.
The unit of weight is
a)
Kg
b)
N
c)
metre/sec
d)
Kgm/s
46.
The weight on the surface of the moon is __________.
a)
six times that of Earth
b)
one quarter that of Earth
c)
one eightieth that of Earth
d)
one sixth that of Earth
47.
Which has greater mass?
a)
the apples
b)
the oranges
c)
neither
48.
If an object mass is 30 kg on the Earth, what would be it's weight on Earth? (F=ma)
a)
3.1 kg
b)
294 kg
c)
294 N
d)
3.1 N
49.
The point at which the light rays meet is called the focal point.
a)
true
b)
False
50.
The following is a picture of what type of mirror?
a)
Convex Mirror
b)
Concave Mirror
c)
Plane Mirror
d)
Flat Mirror
51.
The following is a picture of what type of mirror?
a)
Convex Mirror
b)
Concave Mirror
c)
Plane Mirror
d)
Flat Mirror
52.
What does it mean to reflect?
a)
bounce off
b)
bend
c)
refract
d)
energy
53.
What does it mean to refract?
a)
bounce off
b)
to bend
c)
curve outward
d)
reflect
54.
What property of light waves can be observed as light waves pass from one medium to another and change speed?
a)
Diffraction
b)
Refraction
c)
Reflection
d)
Separation
55.
What kind of wave can travel through space?
a)
electromagnetic waves
b)
compressional waves
c)
transverse waves
d)
longitudinal waves
56.
A wave carries...?
a)
energy only
b)
matter only
c)
the matter carries the energy
d)
neither
57.
The lowest part of the wave is?
a)
trough
b)
crest
c)
point of origin
d)
compression point
58.
The highest point of a wave is?
a)
crest
b)
trough
c)
point of origin
d)
comppression point
59.
Amplitude reflects the amount of ____________________ in a wave.
a)
energy
b)
compression
c)
rarefaction
d)
speed
60.
Which wave has a greater frequency?
a)
A
b)
B
61.
_______ carry the greatest amount of energy.
a)
x-rays
b)
gamma rays
c)
infrared rays
d)
visible light
62.
Cell phones use_____________waves.
a)
Microwaves
b)
Gamma
c)
XRays
d)
Radio
63.
Sound will travel slowest through which of the following forms of matter?
a)
milk
b)
desk
c)
air
d)
door
64.
Sound travels FASTEST through which of these materials?
a)
Air
b)
Empty space
c)
Metal
d)
Water
65.
Why is sound able to travel faster through a solid than a gas?
a)
Gas molecules are packed tightly.
b)
Sound does not travel faster through a solid than a gas.
c)
Solid molecules are packed tightly.
d)
Gas molecules move slowly.
66.
When a car moves towards you, the sound of its horn seems relatively...
a)
Low pitched
b)
High pitched
c)
Normal
67.
A wave that requires a medium through wave which to travel
a)
A. electromagnetic wave
b)
B. longitudinal wave
c)
C. mechanical wave
d)
D. transverse wave
68.
A wave in which the particles of the medium move perpendicularly to the direction the wave is traveling
a)
A. surface wave
b)
B. transverse wave
c)
C. electromagnetic wave
d)
D. longitudinal wave
69.
A wave in which the particles of the medium vibrate parallel to the direction of the wave motion
a)
A. mechanical wave
b)
B. surface wave
c)
C. longitudinal wave
d)
D. wave
70.
What two points represent one full wavelength?
a)
Point A to E
b)
Point B to D
c)
Point A to G
d)
Point F to G
71.
Which wave has the lowest frequency?
a)
red
b)
orange
c)
green
d)
blue
72.
What part of the electromagnetic spectrum can be seen by humans?
a)
visible light
b)
microwaves
c)
ultraviolet rays
d)
infrared rays
73.
Which of the following is NOT in the visible light spectrum?
a)
violet light
b)
red light
c)
ultraviolet light
d)
blue light
74.
The major drawback to nuclear fission reactors is the difficulty of achieving safe disposal of radioactive waste products.
a)
true
b)
false
75.
A benefit to using nuclear fission power is that it:
a)
supplies a lot of electricity
b)
conserves organic fuels, like oil, coal, and wood
c)
eliminates huge quantities of sulfur dioxides, from burning oil products which pollute our air
d)
all of the choices
76.
Nuclear fusion occurs typically in:
a)
the upper atmosphere
b)
uranium mines
c)
the sun
d)
all of the choices
77.
What term describes a gas changing to a liquid?
a)
Deposition
b)
Sublimation
c)
Evaporation
d)
Condensation
78.
What term describes a solid changing to a gas?
a)
Deposition
b)
Sublimation
c)
Evaporation
d)
Freezing
79.
At higher temperatures
a)
particles in an object have less energy
b)
particles in an object move faster
c)
a gas contracts
80.
The reverse of vaporization is
a)
sublimation
b)
condensation
c)
boiling
d)
melting
81.
At what point(s) is a phase change occuring?
a)
A
b)
B and D
c)
D
d)
C and A
82.
At which point is the substance a solid?
a)
A
b)
C
c)
E
d)
D
83.
At which point is this substance a liquid?
a)
A
b)
C
c)
E
d)
D
84.
Point "B" is known as the:
a)
melting point
b)
freezing point
c)
boiling point
d)
both freezing and melting point.
85.
During a phase change, the temperature...
a)
Increases
b)
Decreases
c)
Doesn't change
86.
What could be occurring between point B and C?
a)
melting
b)
material is getting softer
c)
freezing
d)
material is warming up
87.
Which state of matter has molecules that slide past each other but stay close together? They do not form a regular pattern.
a)
solid
b)
liquid
c)
gas
88.
How long did it take this object to travel 10 m?
a)
0 s
b)
10 s
c)
15 s
d)
20 s
89.
What is the objects average speed from 0-20 seconds?
a)
0.5m/s
b)
10m/s
c)
2m/s
d)
10m
90.
A discus thrower scored 139 m. The coach timed the speed of the disc at 13.0 m/s. How long was the disc in the air?(s=d/t)
a)
10.7 m/s
b)
10.7 s
c)
1,807 m/s
d)
1,807 s
91.
How far will a person go if they jog for 2 hours at a speed of 12 km/hr?(s=d/t)
a)
6 km
b)
6 km/hr
c)
24 km/hr
d)
24 km
92.
When a pendulum swings, at which point is potential energy at its greatest
a)
1
b)
2
c)
3
d)
4
93.
If you do 40 joules of work lifting a 10N box, how high is the shelf you move it to? (W=Fd)
a)
400m
b)
4m
c)
50m
d)
40m
94.
You apply a force of ? to a wheelbarrow and moved it 6 m resulting in 48 J of work. How much force did you do on the dresser? (W= Fd)
a)
8 N
b)
8 J
c)
288 J
d)
288 N
95.
Which of the following is an example of work being done?
a)
Teacher sitting in a chair
b)
Book resting on desk
c)
Keys hanging from a key chain
d)
A ball being rolled on the floor
96.
Calculate the kinetic energy of a runner that has a mass of 80 kg and is running at a velocity of 8 m/s. (KE= 1/2mv2)
a)
5120 J
b)
320 J
c)
640 J
d)
2560 J
97.
If a cannonball flies at a speed of 15 m/s and has 675J of kinetic energy, what is its mass?(KE= 1/2mv2)
a)
90 Kg
b)
6 Kg
c)
350 Kg
d)
22.5 Kg
98.
Which energy transformation occurs in a toaster?
a)
chemical to electric
b)
electric to thermal
c)
kinetic to chemical
d)
thermal to potential
99.
A lamp that plugs into a wall socket draws energy which flows through a thin wire in the bulb causing it to glow. What energy transformations are taking place?
a)
Chemical to light to electrical
b)
Mechanical to sound to light
c)
Thermal to solar to electrical
d)
Electrical to thermal to light
100.
Which of the following best describes the energy transformations that occur when a flashlight that runs on batteries is turned on?
a)
Chemical to light to electrical
b)
Electrical to light to chemical
c)
Light to electrical to chemical
d)
Chemical to electrical to light
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