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WorksheetsForces Review
Total questions: 75
Worksheet time: 50mins
Name
Class
Date
1.
A push or pull exerted on an object
a)
Force
b)
Net force
c)
Momentum
d)
Speed
2.
Forces that produce a nonzero net force, which changes an objects motion.
a)
Force
b)
Momentum
c)
Unbalanced Force
d)
Speed
3.
The distance an object travels per unit of time. Or Distance divided by time.
a)
Force
b)
Momentum
c)
Speed
d)
Velocity
4.
The force that pulls objects toward each other
a)
Momentum
b)
Gravity
c)
Velocity
d)
Speed
5.
Speed in a given direction
a)
Speed
b)
Momentum
c)
Velocity
d)
Acceleration
6.
The force that one surface exerts on another when the two surfaces rub against each other
a)
Speed
b)
Force
c)
Net force
d)
Friction
7.
The force of gravity on an object at the surface of a planet
a)
Weight
b)
Mass
c)
Gravity
d)
Netforce
8.
According to Newton’s first law of motion, a moving object that is not acted on by an unbalanced force will
a)
remain in motion.
b)
eventually come to a stop.
c)
change its momentum.
d)
accelerate.
9.
Acceleration is caused by a force acting on a mass.
a)
Newton’s first law of motion
b)
Newton’s second law of motion
c)
Newton’s third law of motion
10.
Forces always act in equal and opposite pairs.
a)
Newton's 1st Law
b)
Newton's 3rd Law
c)
Newton's second law
11.
Which has more Inertia? (and more force to move)
a)
Truck
b)
Ant
12.
Newton's 1st law is often called the _______.
a)
Newton's 2nd law
b)
action-reaction law
c)
law of equality
d)
law of inertia
13.
A person is pushed forward into their seatbelt when a car stops. Which of Newton's laws explains this motion?
a)
1st law
b)
2nd law
c)
2 and 3 law
d)
3rd law
14.
When air rushes out of a balloon and it moves upward. This is an example of which Law of Motion.
a)
Newton's First Law
b)
Newton's Second Law
c)
Newton's Third Law
15.
The SI units for force are...
a)
Kilograms
b)
Newtons
c)
Meters per second
d)
Pounds
16.
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
17.
A crumpled piece of paper hits the ground before a flat sheet of paper because
a)
the acceleration of gravity is greater on the crumpled paper.
b)
there is more air resistance against the flat paper.
c)
the crumpled paper is more massive
d)
the crumpled paper is less massive.
18.
If the mass of an object is 1000kg on Earth, what is it's mass on the moon?
a)
10kg
b)
100kg
c)
1000kg
d)
10,000kg
19.
An empty truck and a fully loaded truck are next to each other at a traffic light. When the light turns green, the lighter truck increases speed more quickly. Which of these best explains this situations
a)
Newton's first law
b)
Newton's second law
c)
Newton's third law
d)
Conservation of momentum
20.
Newton's second law of motion states that an unbalanced force that acts upon an object causes it to:
a)
accelerate
b)
not accelerate (keep the same velocity
c)
have a velocity
21.
Forces that cancel each other are called __________ forces
a)
inactivated
b)
balanced
c)
null
d)
neutral
22.
Newton's first law of motion states that __________.
a)
when a force is applied on an object, there is an equal force applied by the object in the opposite direction
b)
hen a force acts on an object, its acceleration is in the same direction as the force
c)
an object will remain at rest or keep moving with a constant velocity unless a force acts on it
d)
cceleration is calculated by dividing the force exerted on an object by the mass of the object
23.
Newton's second law of motion states that __________
a)
an object will remain at rest or keep moving in a straight line with constant speed unless a force acts on it
b)
he force on an object can be found by dividing its mass by its acceleration
c)
acceleration is calculated by dividing the force exerted on an object by the mass of the object, and that when a force acts on an object, its acceleration is in the same direction as the force
d)
when a force is applied on an object, there is an equal force applied by the object in the opposite direction
24.
Newton’s third law of motion involves the interactions of
a)
one object and one force
b)
one object and two forces
c)
two objects and one force.
d)
two objects and two forces.
25.
When an object falls, air resistance .
a)
acts in the opposite direction to the movement
b)
acts in the same direction as the weight
c)
does not act at all
26.
When an object is at rest/stationary
a)
There are no forces acting on it
b)
There are forces acting on it but these forces are balanced
c)
There is just one force acting on it, gravity
27.
What is Newton's First Law
a)
F=ma
b)
Every action has an equal and opposite reaction
c)
An object at rest stays at rest, an object in motion stays in motion.
d)
Friction
28.
Which has more Inertia? (so need more force to move)
a)
Truck
b)
Ant
c)
A cat
d)
A skateboard
29.
Equal and Opposite
a)
1st
b)
2nd
c)
3rd
30.
Action/Reaction
a)
1st
b)
2nd
c)
3rd
31.
Force exerted between the surfaces of two objects.
a)
Friction
b)
Inertia
c)
Force
d)
Gravity
32.
Objects tendency to resist change
a)
Friction
b)
Inertia
c)
Force
d)
Gravity
33.
Push or Pull
a)
Friction
b)
Inertia
c)
Force
d)
Gravity
34.
Acceleration is due to a force put on an objects mass.
a)
1st
b)
2nd
c)
3rd
35.
F = MxA
a)
1st
b)
2nd
c)
3rd
36.
Object at rest stays at rest.
a)
1st
b)
2nd
c)
3rd
37.
a)
1st
b)
2nd
c)
3rd
38.
a)
1st
b)
2nd
c)
3rd
39.
a)
1st
b)
2nd
c)
3rd
40.
a)
1st
b)
2nd
c)
3rd
41.
a)
1st
b)
2nd
c)
3rd
42.
a)
1st
b)
2nd
c)
3rd
43.
What law is best described by inertia?
a)
1st
b)
2nd
c)
3rd
44.
a)
1st
b)
2nd
c)
3rd
45.
Football A has a greater mass than football B. Which football will have greater acceleration when both are thrown with the same force in the same direction?
a)
Football A
b)
Football B
c)
They will have the same acceleration
d)
Mass has no effect on acceleration
46.
Newton's third law states that any action will have a(n) _______ and ______ reaction
a)
Equal and similar
b)
Equal and opposite
c)
Equal and different
d)
Greater and opposite
47.
You hit a wall with a stick. The equal but opposite reaction is _____
a)
the wall pushes against you
b)
the stick pushes against you
c)
you push against the stick
d)
the wall pushes against the stick
48.
Unit of mass
a)
m/s 2
b)
m/s
c)
newtons
d)
kg
49.
What is the net force?
a)
400 N Up
b)
400 N Down
c)
- 400 N Down
d)
800 N Down
50.
Balanced or Unbalanced?
a)
Balanced
b)
Unbalanced
51.
The sum of all forces acting on an object.
a)
Contact Force
b)
Balanced Force
c)
Unbalanced Force
d)
Net Force
52.
What is the net force?
a)
10 N
b)
0 N
c)
25 N
d)
1 N
53.
A ____________ is a push or a pull on an object.
a)
friction
b)
force
c)
magnet
d)
gravity
54.
What is the unit to MEASURE force?
a)
Kilogram
b)
Meter
c)
Pascal
d)
Newton
55.
Friction is a force that acts in an ___________ direction of movement.
a)
similar
b)
opposite
c)
parallel
d)
west
56.
The amount of friction depends on the weight of the objects pressing together.
a)
True
b)
False
57.
What type of friction is not moving?
a)
static
b)
sliding
c)
fluid
d)
rolling
58.
How can friction be reduced?
a)
reduce the force acting between the 2 surfaces
b)
reduce the roughness of the 2 surfaces coming in contact
c)
use wax, grease or oil
d)
all of the above are ways of reducing friction
59.
Rougher surfaces have ...
a)
greater friction
b)
less friction
c)
the same level of friction
60.
Wheels on a skateboard most likely experiences-
a)
Rolling Friction
b)
Sliding Friction
c)
Fluid Friction
d)
Static Friction
61.
Sally experiences-
a)
Rolling Friction
b)
Sliding Friction
c)
Fluid Friction
d)
Static Friction
62.
Objects balanced on Timmy's head experiences-
a)
Rolling Friction
b)
Sliding Friction
c)
Fluid Friction
d)
Static Friction
63.
Which type of friction occurs when an object rolls over or rotates on a surface?
a)
sliding
b)
static
c)
fluid
d)
rolling
64.
Oil between machine parts would be an example of which type of friction?
a)
static
b)
sliding
c)
fluid
d)
rolling
65.
Which type of friction occurs when objects are not moving?
a)
static
b)
sliding
c)
fluid
d)
rolling
66.
A type of friction that occurs when air pushes against a moving object causing it to negatively accelerate
a)
surface area
b)
air resistance
c)
descent velocity
d)
gravity
67.
Wheels of a shopping cart experience-
a)
Rolling Friction
b)
Sliding Friction
c)
Fluid Friction
d)
Static Friction
68.
The formula for momentum is
a)
mass divided by velocity
b)
mass multiplied by velocity
c)
velocity divided by mass
d)
Force times acceleration
69.
The units for momentum are
a)
kg
b)
m/s
c)
kg-m/s
d)
kg/m/s
70.
The law of conservation of momentum states that,
a)
p before is less than p after
b)
p before is the same as p after
c)
p before is more than p after
71.
The difference between a car hitting a wall vs. a car hitting a hay stack is
a)
the Impulse on the car hitting the wall is greater
b)
the change in momentum of the car hitting the wall is greater
c)
the force on the car hitting the hay stack is greater
d)
the collision time of the car hitting the hay stack is greater
72.
When the speed of an object is doubled, its momentum
a)
remains unchanged in accord with the conservation of momentum.
b)
doubles
c)
quadruples
d)
decreases
73.
In any collision (crash) the ______ is ALWAYS constant
a)
Total Momentum
b)
total speed
c)
total Velocity
d)
Energy
74.
A runner has a momentum of 670 kg m/s and is traveling at a velocity of 9 m/s. What is his mass?
a)
74.4 kg
b)
6030 kg
c)
0.0134 kg
d)
80 kg
75.
A 2 kg cart has a momentum of 16 kg m/s. What is its velocity?
a)
8 m/s
b)
32 m/s
c)
0.125 m/s
d)
18 m/s
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