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WorksheetsForces Test Review
Total questions: 35
Worksheet time: 35mins
Name
Class
Date
1.
Which of the following is an example of exerting a force?
a)
a child running through a field
b)
a train speeding down a track
c)
a carpenter hammering a nail
2.
What happens when two forces act in the same direction (and on the same object)?
a)
They cancel each other out
b)
They are added together
c)
Their sum is divided by two
3.
The tendency of an object to resist change in its motion is known as
a)
mass.
b)
inertia.
c)
force.
4.
The greater the mass of an object,
a)
the easier the object starts moving.
b)
the greater its inertia.
c)
the more space it takes up.
5.
One way to increase acceleration is by
a)
increasing mass.
b)
decreasing mass.
c)
decreasing force.
6.
The force that one surface exerts on another when the two rub against each other is called
a)
friction.
b)
inertia.
c)
gravity.
7.
When the only force acting on a falling object is gravity, the object is said to be
a)
stationary.
b)
a projectile.
c)
in free fall.
8.
Air resistance is a type of
a)
motion.
b)
acceleration.
c)
friction
9.
Two figure skaters who push off of each other will move at the same speed if
a)
they push with the same force.
b)
there is no air resistance.
c)
they have the same mass.
10.
Forces can be added together only if they are
a)
acting on the same object.
b)
balanced forces.
c)
unaffected by gravity.
11.
The product of an object's mass and velocity is called its
a)
inertia.
b)
momentum.
c)
acceleration.
12.
The achievement of lifting a rocket off the ground and into space can be best explained by
a)
Newton's first law.
b)
Newton's second law.
c)
Newton's third law.
13.
In physical science, a push or a pull is called a(n)
a)
force.
b)
acceleration.
c)
motion.
14.
Objects falling through air experience a type of friction called
a)
terminal velocity.
b)
air resistance.
c)
free fall.
15.
According to Newton's third law of motion, when a hammer strikes and exerts force on a nail, the nail
a)
creates friction with the hammer.
b)
exerts an equal force back on the hammer.
c)
moves at constant speed.
16.
Unbalanced forces maintain motion at constant velocity.
a)
True
b)
False, Balanced
17.
The tendency of an object to resist a change in motion is called inertia.
a)
True
b)
False, gravity
18.
According to Newton's second law of motion, force equals mass times weight.
a)
True
b)
False, acceleration
19.
Friction depends on the types of surfaces involved and how hard the surfaces push together.
a)
True
b)
False, Air resistance
20.
The force of gravity decreases as the masses of the objects increase.
a)
True
b)
False, increases
21.
When the only force acting on a falling object is air resistance the object is said to be in free fall.
a)
True
b)
False, gravity
22.
Newton's third law of motion explains that forces act alone.
a)
True
b)
False, in pairs
23.
The overall force on an object after all the forces are added together is called the ________ force.
a)
total
b)
net
c)
sum
24.
A person traveling in a car that stops suddenly keeps moving forward due to ________.
a)
gravity
b)
friction
c)
inertia
25.
The downward force acting on an object in free fall is the force of ________.
a)
gravity
b)
friction
c)
air resistance
26.
When ________ equals the force of gravity on a falling object, the object reaches terminal velocity.
a)
friction
b)
inertia
c)
air resistance
27.
According to Newton's third law of motion, the strength of a reaction force is _______ the strength of the action force.
a)
greater than
b)
less than
c)
equal to
28.
If the action force of a bat striking a ball accelerates the ball in one direction, the reaction force accelerates the bat in the ________ direction.
a)
opposite
b)
same
c)
equal
29.
The momentum of a roller skater is not conserved because _______ acts on the skates.
a)
gravity
b)
inertia
c)
friction
30.
Friction acts in a direction ______ to an object's direction of motion.
a)
equal
b)
opposite
c)
diagonal
31.
What does the head of each arrow indicate?
a)
size of the force
b)
direction of the force
c)
direction of motion
32.
The force that pulls falling objects towards Earth is called
a)
gravity
b)
free fall
c)
air resistance
33.
What does the width of each arrow indicate?
a)
direction of the force
b)
direction of movement
c)
size of the force
34.
Which of the following is an example of increasing friction?
a)
waxing a pair of skis
b)
adding grease to gears on a bike
c)
throwing sand on an icy driveway
35.
The momentum of an object is in the same direction as its
a)
force
b)
acceleration
c)
velocity
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