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Worksheets8th grade physics chemistry review9/17/18
Total questions: 106
Worksheet time: 2hrs 40mins
Name
Class
Date
1.
"For every action, there is an equal and opposite reaction."
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's 4th Law
2.
Force = Mass x Acceleration
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's 4th Law
3.
"An object in motion (or at rest) will to stay in motion (or at rest) until an outside force acts upon it."
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's 4th Law
4.
The tendency of an object to resist changes in its motion is...
a)
inertia
b)
force
c)
acceleration
d)
velocity
5.
The tendency of a moving object to resist changes in its motion is...
a)
momentum
b)
force
c)
acceleration
d)
velocity
6.
Any push or pull on an object.
a)
force
b)
velocity
c)
inertia
d)
momentum
7.
The force that opposes motion between two surfaces in contact with each other.
a)
inertia
b)
friction
c)
momentum
d)
gravity
8.
The force of attraction between all matter.
a)
inertia
b)
friction
c)
net force
d)
gravity
9.
A force that opposes motion between a surface in contact with the atmosphere.
a)
air resistance
b)
gravity
c)
momentum
d)
terminal velocity
10.
Which of the following is the same as a Newton?
a)
kg*m/sec/sec
b)
kg*m/sec
c)
m/sec/sec
d)
m/sec
11.
Which of the following is the units for momentum?
a)
kg*m/sec/sec
b)
kg*m/sec
c)
m/sec/sec
d)
m/sec
12.
Which of the following is the units for acceleration?
a)
kg*m/sec/sec
b)
kg*m/sec
c)
m/sec/sec
d)
m/sec
13.
Which of the following is the units for velocity?
a)
kg*m/sec/sec
b)
kg*m/sec
c)
m/sec/sec
d)
m/sec
14.
A Newton is a unit of...
a)
force
b)
inertia
c)
acceleration
d)
velocity
15.
When all the forces on an object are equal and opposite, & the net force is zero, that's...
a)
balanced forces
b)
unbalanced forces
c)
terminal velocity
d)
reaction forces
16.
The combination of all the forces acting on an object is the...
a)
net force
b)
action force
c)
reaction force
d)
balance force
17.
An archer pulls the bowstring back, then releases the string and the arrow flies forward. Pulling the string back is the...
a)
action force
b)
reaction force
c)
net force
d)
inertia
18.
An archer pulls the bowstring back, then releases the string and the arrow flies forward. The arrow flying forward is the...
a)
action force
b)
reaction force
c)
net force
d)
inertia
19.
A cannonball with a mass of 0.5 kg is flying at an acceleration of 10 m/sec/sec. What is it's force?
a)
50 Newtons
b)
5 Newtons
c)
20 Newtons
d)
9.5 Newtons
20.
A cannonball with a mass of 10 kg is flying at an acceleration of 5 m/sec/sec. What is it's force?
a)
50 Newtons
b)
5 Newtons
c)
20 Newtons
d)
9.5 Newtons
21.
The net force on a ball thrown in outer space is... (you are no longer touching the ball)
a)
there is none
b)
forward
c)
down and backward
d)
forward and down
22.
The net force on a ball thrown on Earth is... (you are no longer touching the ball)
a)
there is none
b)
forward
c)
down and backward
d)
forward and down
23.
When a moving object strikes another object, it will transfer this to the object it hits.
a)
force
b)
momentum
c)
gravity
d)
friction
24.
Gravity is increased with...
a)
greater mass & shorter distance
b)
greater mass & farther distance
c)
lower mass & shorter distance
d)
lower mass & farther distance
25.
Mass x acceleration = ?
a)
force
b)
inertia
c)
momentum
d)
velocity
26.
Mass x velocity= ?
a)
force
b)
inertia
c)
momentum
d)
velocity
27.
A 10 lb. bowling ball hits a stationary 20 lb. bowling ball. Which of the following is not true about the 2nd ball?
a)
will have unbalanced forces acting on it
b)
move twice as fast as the original ball
c)
not move unless there is enough force to overcome its inertia
d)
take on the momentum of the original ball
28.
In the picture, the blocks are flying out of the truck based on which of Newton's laws?
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's 6th Law
29.
In the picture, the vehicle will move because of...
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's 9th Law
30.
To compare the two pictures would require...
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's 11th Law
31.
a)
1st
b)
2nd
c)
3rd
32.
What law is best described by inertia?
a)
1st
b)
2nd
c)
3rd
33.
a)
1st
b)
2nd
c)
3rd
34.
a)
1st
b)
2nd
c)
3rd
35.
a)
1st
b)
2nd
c)
3rd
36.
a)
1st
b)
2nd
c)
3rd
37.
a)
1st
b)
2nd
c)
3rd
38.
Object at rest stays at rest.
a)
1st
b)
2nd
c)
3rd
39.
a)
1st
b)
2nd
c)
3rd
40.
F = MxA
a)
1st
b)
2nd
c)
3rd
41.
Acceleration is due to a force put on an objects mass.
a)
1st
b)
2nd
c)
3rd
42.
Action/Reaction
a)
1st
b)
2nd
c)
3rd
43.
Equal and Opposite
a)
1st
b)
2nd
c)
3rd
44.
What is the unit to MEASURE force?
a)
Kilogram
b)
Meter
c)
Pascal
d)
Newton
45.
What is the net force?
a)
10 N
b)
0 N
c)
25 N
d)
1 N
46.
If these teams are pulling with the same amount of force what will happen?
a)
The boy in blue will win.
b)
They will not move at all.
c)
The boy in red will win.
d)
Both will fall down.
47.
Balanced or Unbalanced?
a)
Balanced
b)
Unbalanced
48.
Unit of mass
a)
m/s 2
b)
m/s
c)
newtons
d)
kg
49.
45 m/s2 is the...
a)
Mass
b)
Force
c)
Acceleration
d)
weight
50.
What is the formula for force?
a)
F=M/A
b)
F=A/M
c)
F=M*A
d)
F=M*F
51.
Two balls that collide will have an equal but opposite force upon one another
a)
First Law
b)
Second Law
c)
Third Law
d)
Law of Inertia
52.
What is the tendency of an object to resist a change in motion?
a)
coffee
b)
motion
c)
inertia
d)
gravity
53.
Which law explains why you need to wear a seat belt?
a)
First
b)
Second
c)
Third
d)
Gravity
54.
A rocket with less ________ will have a greater acceleration.
a)
Mass
b)
At Rest
c)
Reaction
d)
Resist
55.
What is the difference between a compound and an element?
a)
Compounds are made up of elements and can be chemically separated. Elements cannot be separated.
b)
Elements make up compounds. Elements can be separated but compounds cannot be separated.
c)
Elements are found on the periodic table and compounds are found on the dining room table.
56.
How many elements are in C6H12O6?
a)
1
b)
2
c)
3
d)
4
57.
How many atoms of carbon (C) are in C6H12O6?
a)
3
b)
6
c)
12
d)
24
58.
A student is studying calcium, a highly reactive element that humans need for strong bones. Which characteristic of calcium is mostly closely related to its chemical reactivity?
a)
The 20 protons in each atom of calcium
b)
The density of calcium, which is 1.54 g/cm3
c)
The atomic mass of calcium, which is 40.078 amu
d)
The 2 valence electrons in each atom of calcium
59.
A wheeled cart is moving to the right at a constant speed. Two forces of equal magnitude are acting upon the cart. Which of the following best describes the forces and motion of the cart?
a)
Balanced Forces, Constant Speed
b)
Balanced Forces, Acceleration
c)
Unbalanced Forces, Constant Speed
d)
Unbalanced Forces, Acceleration
60.
Speed is different from velocity because
a)
Velocity has a direction
b)
Speed uses Distance /Time
c)
Velocity doesn't include time
d)
Velocity doesn't include distance
61.
Enzymes (chemicals) in your saliva help break down food while chewing. This is...
a)
Mechanical digestion
b)
Chemical digestion
62.
The chewing and grinding of food into smaller pieces is an example of...
a)
Mechanical Digestion
b)
Chemical Digestion
63.
What energy is pulling an arrow back
a)
kinetic energy
b)
potential energy
c)
energy
64.
How much force is needed to accelerate a 25kg bowling ball at 2m/s2.
a)
50N
b)
5N
c)
12.5N
d)
100N
65.
What element is this?
a)
Helium
b)
Hydrogen
c)
Argon
d)
Silver
66.
What element is represented in this Bohr Model?
a)
Carbon
b)
Hydrogen
c)
Aluminum
d)
Lithium
67.
Calculate the acceleration of a 150 kg object that is moved with a force of 300N.
a)
2
b)
150
c)
.5
d)
450
68.
What is the mass of an object that is accelerating 60 m/s2 when a force of 3000N is exerted?
a)
5
b)
3060
c)
50
d)
180000
69.
Organic compounds are always based on what element?
a)
hydrogen
b)
water
c)
carbon
d)
arsenic
70.
Which letter represents an electron?
a)
A
b)
B
c)
C
d)
D
71.
Which letter represents the electron cloud?
a)
A
b)
B
c)
D
d)
E
72.
Which statement best describes the locations of the subatomic particles?
a)
The protons and electrons are found in the nucleus, while neutrons are in the cloud outside the nucleus
b)
The neutrons are in the nucleus, while the protons and electrons are in the cloud outside the nucleus
c)
The protons and neutrons are in the nucleus, while the electrons are in the cloud outside the nucleus
d)
The electrons and neutrons are in the nucleus, while the protons are in the cloud outside the nucleus
73.
You and your dad are moving the couch from one side to another. Your dad pushes with a force of 35 N to the right and you push with a force of 25 N right. What is the net force on the couch?
a)
60 N right
b)
10 N left
c)
60 N right
d)
50 N left
74.
Which one is balanced?
a)
Top
b)
Bottom
c)
Both
d)
Cannot be determined
75.
What is the net force?
a)
17 N Right
b)
3 N Right
c)
3 N Left
d)
17 N Left
76.
If a man and woman push each other in opposite directions at both 9 N, what is the net force?
a)
81 N
b)
18 N
c)
1 N
d)
0 N
77.
Force: 23 N to the right, 23 N to the right. What is the net force?
a)
46 N right
b)
0 N Left
c)
1 N Left
d)
529 N Right
78.
A runner races in the 100 meter dash. It takes her 10 seconds to finish. What is her average speed?
a)
10 m/s
b)
1000 m/s
c)
100 seconds
d)
10 seconds
79.
What is velocity?
a)
the quickness of an object
b)
the location of an object
c)
acceleration
d)
speed in a specific direction
80.
Acceleration is
a)
increasing speed
b)
decreasing speed
c)
changing direction
d)
all of the above
81.
Which type of force(s) will cause a change in an object's motion?
a)
equal forces
b)
zero net force
c)
balanced forces
d)
unbalanced forces
82.
What is the name for a push or pull?
a)
A movement
b)
A force
c)
Speed
d)
Density
83.
A ____ force is the sum of forces felt by an object.
a)
sum
b)
net
c)
strong
d)
balanced
84.
Calculate the net force.
a)
5 N
b)
10 N
c)
45 N
d)
500 N
85.
What is speed?
a)
how far you go
b)
how much distance is covered over a period of time
c)
how fast you accelerate
d)
the change in the location of a object
86.
What is the net force?
a)
5000 N right
b)
4000 N right
c)
40 N left
d)
4000 N left
87.
If there are two forces going in opposite directions, would you add or subtract them to find the net force?
a)
Add
b)
Subtract
c)
Multiply
d)
Neither
88.
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
89.
What is the net force?
a)
10 N left
b)
10 N right
c)
30 N left
d)
30 N right
90.
Which car is accelerating?
a)
A car that is not moving
b)
A car that rounds a curve at a constant speed
c)
A car traveling at a constant speed
d)
A car that has a set speed of 60mph
91.
Name the missing force....
a)
weight force
b)
normal force
c)
frictional force
d)
tension force
92.
Name the missing force...
a)
buoyant force
b)
normal force
c)
weight force
d)
frictional force
93.
Name the missing force...
a)
spring force
b)
weight force
c)
normal force
d)
buoyant force
94.
Name the missing force...
a)
applied force
b)
weight force
c)
lift
d)
normal force
95.
Name the missing force...
a)
tension force
b)
frictional force
c)
normal force
d)
spring force
96.
Name the missing force...
a)
frictional force
b)
weight force
c)
thrust
d)
buoyant force
97.
Name the missing force...
a)
thrust
b)
frictional force
c)
normal force
d)
weight force
98.
Name the missing force...
a)
weight force
b)
normal force
c)
buoyant force
d)
applied force
99.
Name the missing force...
a)
normal force
b)
applied force
c)
frictional force
d)
tension force
100.
Name the missing force...
a)
applied force
b)
weight force
c)
tension force
d)
drag
101.
Name the missing force...
a)
tension force
b)
gravitational force
c)
normal force
d)
applied force
102.
Name the missing force...
a)
weight force
b)
normal force
c)
applied force
d)
frictional force
103.
What is the net force in this diagram?
a)
8N right
b)
2 N right
c)
8N left
d)
2N left
104.
What is the net force of an object that is not moving?
a)
0N
b)
100N
c)
Upward force
105.
What is the net force in this picture?
a)
50 Newtons to the right
b)
950 Newtons to the right
c)
950 Newtons to the left
d)
50 Newtons to the left
106.
What makes a rolling ball stop moving?
a)
gravity
b)
friction
c)
a balanced force
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