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WorksheetsScience 8 Final Review
Total questions: 94
Worksheet time: 2hrs 9mins
Name
Class
Date
1.
__________ can be described as a change in position over a period of time.
a)
Energy
b)
Acceleration
c)
Motion
d)
Force
2.
__________ can be measured as the distance traveled in a given amount of time.
a)
Speed
b)
Acceleration
c)
Energy
d)
Force
3.
____________ is a push or pull on an object.
a)
Motion
b)
Force
c)
Speed
d)
Velocity
4.
Force is measured in ________.
a)
Joules
b)
Kilograms
c)
Pounds
d)
Newtons
5.
__________ friction is friction that exists between a stationary object and the surface on which it is resting.
a)
Static
b)
Rolling
c)
Kinetic
d)
Stationary
6.
_______________ is friction due to air molecules. It opposes the motion of an object.
a)
Air Resistance
b)
Electromagnetic
c)
Gravitational
d)
Spring
7.
__________ force is a natural force of attraction between any two objects that have mass.
a)
Electromagnetic
b)
Gravitational
c)
Air Resistance
d)
Normal
8.
As the distance between two magnets increases, the magnetic force between them __________.
a)
Increases
b)
Decreases
c)
Stays the same
d)
Increases and then decreases
9.
As the mass of an object increases, the force of gravity ___________.
a)
Increases
b)
Decreases
c)
Stays the same
d)
Increases and then decreases
10.
An object that is balanced will have a net force of:
a)
0 N
b)
10 N
c)
100 N
d)
1000 N
11.
A train accelerating away from the station would have ___________.
a)
unbalanced forces
b)
balanced forces
12.
An object at rest will stay at rest and an object in motion will remain in motion unless acted upon by an unbalanced force.
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's 4th Law
13.
What is the net force on the object?
a)
10 N right
b)
500 N right
c)
950 N right
d)
50 N left
14.
What is the net force on the object?
a)
900 N left
b)
900 N right
c)
450 N left
d)
450 N right
15.
Which form of matter take the shape of a container like this juice?
a)
liquid
b)
solid
c)
glass
d)
gas
16.
Which form of matter fills the space like it has in the balloon?
a)
liquid
b)
string
c)
solid
d)
gas
17.
What is happening when my ice cream changes from a solid to a liquid?
a)
freezing
b)
melting
c)
burning
d)
evaporation
18.
A gas
a)
has a definite shape but no definite volume
b)
has a definite volume but no definite shape
c)
has fast-moving particles
19.
Which lab tool might you use to measure the volume of a liquid?
a)
electric scale
b)
bunsen burner
c)
test tube
d)
graduated cylinder
20.
What is the volume of Object X?
a)
10.0 cm3
b)
15.0 cm3
c)
20.0 cm3
d)
25.0 cm3
21.
Put the liquids in order from most dense to least dense?
a)
4, 3, 2, 1
b)
1, 2, 3, 4
c)
3, 4, 2, 1,
d)
4, 3, 1, 2
22.
Which liquid is the least dense?
a)
oil
b)
water
c)
syrup
d)
plastic bottle
23.
What is the volume of the fish?
a)
18.0 cm3
b)
6.0 cm3
c)
38.0 cm3
24.
If you spilled nails in a sandbox, what separation tool/method could you use to clean out the sandbox so it would be safe for children to play in?
a)
Filter
b)
Screen
c)
Magnet
d)
Evaporation
25.
__________ can be measured as the distance traveled in a given amount of time.
a)
Speed
b)
Acceleration
c)
Energy
d)
Force
26.
A class learns about fossil fuels. They learn that coal, oil and natural gas are classified as nonrenewable resources because they take so long to form. How can the class conserve fossil fuels?
a)
Use both sides of notebook paper
b)
Arrange a car pool to and from school
c)
Create a backyard compost pile
d)
Plant flowers in front of the school
27.
What is a parallel circuit?
a)
A circuit with only one path to get electricity to the light
b)
A circuit without any paths to get electricity to the light
c)
A circuit with multiple paths to get electricity to the light
d)
I never knew there was such a thing as a parallel circuit
28.
What is condensation?
a)
Liquid turning into a gas
b)
Gas turning into a liquid
29.
Which of the following is NOT a physical change that happens when water changes state?
a)
water boils
b)
water freezes
c)
ice sinks
d)
ice melts
30.
You break a china cup. You put its pieces back together again with glue. Predict the mass of the repaired cup.
a)
It will be less than the mass of the unbroken cup.
b)
It will be greater than the mass of the unbroken cup because of the glue.
c)
It will equal the mass of the unbroken cup.
d)
The two masses cannot be compared because the physical change has occurred.
31.
A block has a mass of 54g and a volume of 20cm3. What is the density of the block?
a)
74 g/cm3
b)
1080 g/cm3
c)
34 g/cm3
d)
2.7 g/cm3
32.
Why do ice cubes float in a glass of water?
a)
the ice cubes are more dense than the water
b)
the water is more dense than the ice cubes
c)
the water is more dense than the glass
d)
the ice is more dense than the glass
33.
What law is best described by inertia?
a)
1st
b)
2nd
c)
3rd
34.
F=ma
a)
Newton's
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
35.
For every action, there is an equal and opposite reaction.
a)
Newton's
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
36.
An automobile you are riding in suddenly stops, but you continue to go forward.
a)
Newton's
1st
Law of Motion
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
3rd
Law of Motion
37.
When the force on a car is doubled, the acceleration is doubled.
a)
Newton's
1st
Law of Motion
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
3rd
Law of Motion
38.
A stationary bumper car is set in motion by the outside force of another bumper car colliding with it.
a)
Newton's
1st
Law of Motion
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
3rd
Law of Motion
39.
A magician pulls a table cloth from under a table of dishes.
a)
Newton's
1st
Law of Motion
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
3rd
Law of Motion
40.
A skater pushes another skater forward, but the one pushing moves backwards.
a)
Newton's
1st
Law of Motion
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
3rd
Law of Motion
41.
the tendency of an object to resist a change in its motion
a)
force
b)
velocity
c)
inertia
d)
balanced force
42.
The force that pulls things toward earth.
a)
Speed
b)
Gravity
43.
What is Newton's First Law known as? The Law of
a)
Friction
b)
Mass
c)
Inertia
d)
Gravity
44.
What kind(s) of objects have inertia?
a)
all objects with mass
b)
only objects at rest
c)
only objects in motion
d)
only objects whose motion is being changed
45.
Which of the following is the best example of Newton's First Law of Motion?
a)
the coin drops into the cup after the card is quickly removed
b)
the coin stays on the card and moves off the cup
c)
the cup and coin are dragged with the card as it is moved off
d)
nothing happens
46.
If forces on an object are balanced, the object is...
a)
Moving
b)
Not moving
47.
the combination of all the forces acting on an object
a)
force
b)
resultant net force
c)
balanced force
d)
unbalanced force
48.
Force is measured in
a)
kilograms
b)
Newtons
c)
protons
d)
miles
49.
How does friction affect speed?
a)
more friction decreases speed
b)
more friction increases speed
c)
less friction decreases speed
50.
Friction is a force that acts in an ___________ direction of movement.
a)
similar
b)
opposite
c)
parallel
d)
west
51.
Choose all that apply: When is gravity at its greatest?
a)
The objects are furthest apart
b)
The objects are closest together
c)
The objects are greater in mass
d)
The objects are least in mass
52.
If one force of 30 N and another force of 85 N result in a net force of 55 N, which term describes the two forces?
a)
negative forces
b)
balanced forces
c)
unbalanced forces
53.
Which term explains why a crash-test dummy lunges forward during a car crash?
a)
inertia
b)
gravity
c)
velocity
54.
When working in the lab, you always...
a)
work with only members of your group with a business-like attitude
b)
ask questions when in doubt about procedures
c)
clean up after yourself
d)
all of the above
55.
Calculate the speed:
A Car traveled 240 Km in 5 Hours
A Car traveled 240 Km in 5 Hours
a)
48 Km/Hr
b)
1200 Km/Hr
c)
4.8 Km/Hr
d)
0.02 Km/Hr
56.
What is happening at D?
a)
Stationary
b)
Accelerating
c)
Fast steady speed; moving away from the starting position
d)
Slower steady speed; moving away from the starting position
57.
What is happening at A?
a)
Stationary
b)
Accelerating
c)
Slower steady speed; moving away from the starting position
d)
Steady speed; returning to start position
58.
What is this graph showing?
a)
Constant Speed
b)
Acceleration (speeding up)
c)
Deceleration (slowing down)
d)
No motion
59.
Energy of motion is which type of energy?
a)
Potential
b)
Kinetic
c)
Sound
d)
Gravitational
60.
On a roller coaster, where is maximum kinetic energy?
a)
At the bottom of a big hill
b)
When going around a corner
c)
When going upside down
d)
At the top of a big hill
61.
On a roller coaster, where is maximum kinetic energy?
a)
At the bottom of a big hill
b)
When going around a corner
c)
When going upside down
d)
At the top of a big hill
62.
On a roller coaster, where is maximum potential energy?
a)
At the bottom of a big hill
b)
When going around a corner
c)
When going upside down
d)
At the top of a big hill
63.
A windmill is an example of ________________energy.
a)
thermal
b)
mechanical
c)
light
d)
electrical
64.
A computer uses what type of energy to operate?
a)
Mechanical
b)
Light
c)
Electric
d)
Sound
65.
As a pendulum swings from its highest to lowest position, what happens to its kinetic and potential energy?
a)
Both the potential energy and kinetic energy decrease
b)
The potential energy decreases while the kinetic energy increases
c)
The kinetic energy decreases while the potential energy increases
d)
Bothe the potential energy and kinetic energy increase
66.
At which point is potential energy greatest?
a)
W
b)
X
c)
Y
d)
Z
67.
When a pendulum swings, at which point is kinetic energy highest?
a)
1
b)
2
c)
3
d)
4
68.
When a pendulum swings, at which point is potential energy at its greatest?
a)
1
b)
2
c)
3
d)
4
69.
if you push a cart with a force of 60 N for 2 m... how much work have you done
a)
120 J
b)
30 J
c)
120 N
d)
30 N
70.
Earth's ________ on its axis causes day and night.
a)
rotation
b)
revolution
c)
phase
d)
comet
71.
One kind of _______ is the crescent Moon.
a)
axis
b)
asteroid
c)
phase
d)
space probe
72.
One full orbit of an object around another object is called a ________.
a)
axis
b)
rotation
c)
revolution
d)
satellite
73.
Select the order from smallest to largest.
a)
Sun, Milky Way, solar system, universe
b)
Sun, Milky Way, universe, solar system
c)
Sun, solar system, Milky Way, universe
d)
Sun, solar system, universe, Milky Way
74.
A spiral galaxy of stars that contains our Sun
a)
Planisphere
b)
Intensity
c)
Star
d)
Milky Way
75.
Which type of rock is formed by weathering and erosion, then compaction and cementation?
a)
sedimentary rock
b)
metamorphic rock
c)
igneous rock
76.
Which of the following processes does NOT relate to the rock cycle?
a)
heat and pressure
b)
photosynthesis and respiration
c)
weathering and erosion
d)
heating and cooling
77.
After a full moon, the moon starts to become less illuminated. What do we call this?
a)
Waxing
b)
Power outage
c)
Waning
d)
Apocalypse
78.
Which season is taking place in the Southern Hemisphere in Position 1?
a)
Winter
b)
Spring
c)
Summer
d)
Fall
79.
Which season is taking place in the Northern Hemisphere in Position 2?
a)
Winter
b)
Spring
c)
Summer
d)
Fall
80.
Which season is taking place in the Northern Hemisphere in Position 3?
a)
Winter
b)
Spring
c)
Summer
d)
Fall
81.
Which season is taking place in the Southern Hemisphere in Position 4?
a)
Winter
b)
Spring
c)
Summer
d)
Fall
82.
Objects in the sky appear to move from _______ to _______.
a)
East to West
b)
West to East
c)
North to South
d)
South to North
83.
If Earth rotated slower, we would have...
a)
shorter days.
b)
longer days.
c)
shorter years.
d)
longer years.
84.
What kind of galaxy is this?
a)
Ring
b)
Irregular
c)
Spiral
d)
Elliptical
85.
Which star is hotter than Deneb
a)
Procyon
b)
Sun
c)
Regel
d)
Banard's Star
86.
Which star is brighter than the sun?
a)
Sirius B
b)
Procyon B
c)
Van Maanan's Star
d)
Aldebaran
87.
Which star is brighter than Alpha Centauri B, but dimmer than the sun?
a)
Pollux
b)
Spica
c)
Tau Ceti
d)
Mira
88.
Which star is considered a giant star?
a)
Mira
b)
Zeta Arindani
c)
Barnard's Star
d)
Betelgeuse
89.
A collection of stars, dust, and gas bound together by gravity is...
a)
Universe
b)
Solar System
c)
Planet
d)
Galaxy
90.
Which comes first in the following sequence of stars?
a)
Main Sequence Star
b)
Red Giant
c)
White Dwarf
d)
Black Dwarf
91.
Molecules spread out and move FAST!
a)
solid
b)
gas
c)
liquid
92.
Molecules are tightly packed together
a)
solid
b)
liquid
c)
gas
93.
The 3 State of Matter are?
a)
Idaho, Texas, and Florida
b)
Matter, Mass, and Weight
c)
Solids, Liquids, and Gas
d)
Steel, Copper, and Brass
94.
Which box has a higher density?
a)
Box A
b)
Box B
c)
cannot be determined
d)
they are the same
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