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WorksheetsForces and Momentum
Total questions: 37
Worksheet time: 23mins
Name
Class
Date
1.
Forces can be added together only if they are
a)
acting on the same object.
b)
balanced forces.
c)
unaffected by gravity.
d)
substantial.
2.
In physical science, a push or pull is called a(n)
a)
motion.
b)
acceleration.
c)
force.
d)
inerta.
3.
If there are two forces going in the same direction how would you find the net force?
a)
Subtract
b)
Add
c)
Neither
d)
Multiply
4.
8 N to the left , and 4 N to the right. Find the net force. Is this balanced
a)
12 N Right No
b)
4 N Left No
c)
12 N Right Yes
d)
4 N Left Yes
5.
What is force?
a)
A push exerted on an object
b)
A push or pull exerted on an object
c)
A pull exerted on an object
d)
Nothing
6.
With unbalanced forces, the object will move in the direction of the _______ force.
a)
larger
b)
smaller
c)
equal
7.
Forces that have a net force of zero ( the object is still).
a)
Balanced force
b)
Unbalanced force
8.
The force that pulls things toward earth.
a)
Speed
b)
Gravity
9.
If the net force is 0 the object is...
a)
in motion.
b)
in the same place.
10.
What famous scientist was the SI units of Force named after?
a)
Isaac Newton
b)
Galileo Galilei
c)
Albert Einstein
d)
Charles Darwin
11.
How are velocity and force similar.
a)
both are described by the grams they act in.
b)
both are described by the distance they act in.
c)
both are described by the speed they act in.
d)
both are described by the direction they act in.
12.
What is the net force?
a)
5000 N right
b)
4000 N right
c)
40 N left
d)
4000 N left
13.
True or False: The larger the arrow the more the net force.
a)
True
b)
False
14.
You and your friend, are playing tug of war. Your friend pulls with a force of 55 N, to the rights. You pull with a force of 65 N, to the left. What is the net force on the rope?
a)
10 n, to the left
b)
20 N
c)
10 N, to the left
d)
10 N, to the right
15.
__________ is the sum of all forces acting on an object. It is capable of accelerating a mass.
a)
velocity
b)
gravity
c)
net force
d)
distance
16.
What is the unit of measurement for force?
a)
AMP
b)
Seconds
c)
Newtons
d)
Miles
17.
Which one is balanced?
a)
top
b)
bottom
c)
both
18.
What is the net force?
a)
17 N Right
b)
3 N Right
c)
3 N Left
d)
17 N Left
19.
How do you know if and object has balanced force?
a)
It only has one force
b)
its moving
c)
It has equal forces on all sides
d)
its staying still
20.
What is a force that opposes motion?
a)
velocity
b)
energy
c)
friction
d)
static
21.
Smoothing a surface is an example of ______
a)
friction stays the same
b)
decreasing friction
c)
increasing friction
d)
no change
22.
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
23.
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
24.
What Unit do we Measure Force in?
a)
Newtons
b)
Joules
c)
Force
d)
Don't know
25.
Which has more Inertia? (so need more force to move)
a)
Truck
b)
Ant
c)
A cat
d)
A skateboard
26.
A person is pushed forward into their seatbelt when a car stops
a)
1st
b)
2nd
c)
2 and 3
d)
3rd
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.
What can a force do?
a)
all of the above
b)
start a motion
c)
stop a motion
d)
change the direction of the motion
29.
Which type of force(s) will cause a change in an object's motion?
a)
gravity
b)
zero net force
c)
balanced forces
d)
unbalanced forces
30.
A force that opposes motion between a surface in contact with the atmosphere.
a)
air resistance
b)
gravity
c)
momentum
d)
terminal velocity
31.
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
32.
What happens when two forces act in the same direction?
a)
They cancel each other out.
b)
The stronger one prevails.
c)
They add together.
d)
Their sum is divided by two is the total force.
33.
The force that one surface exerts on another when the two rub against each other is called
a)
friction.
b)
acceleration.
c)
inertia.
d)
gravity.
34.
The force of gravity on a person or object on the surface of a planet is called
a)
mass.
b)
air resistance.
c)
weight.
d)
free fall.
35.
The amount of matter in an object is called its
a)
inertia.
b)
mass.
c)
force.
d)
balance.
36.
The tendency of an object to resist change in its motion is known as
a)
mass.
b)
inertia.
c)
force.
d)
balance.
37.
The product of an object's mass and velocity is called its
a)
momentum.
b)
inertia.
c)
acceleration.
d)
force.
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