Worksheets** TEST: Forces & Motion
Total questions: 60
Worksheet time: 39mins
Name
Class
Date
1.
Speed in a given direction
a)
Speed
b)
Momentum
c)
Velocity
d)
Acceleration
2.
The force that pulls objects toward each other
a)
Momentum
b)
Gravity
c)
Velocity
d)
Speed
3.
A push or pull exerted on an object
a)
Force
b)
Net force
c)
Momentum
d)
Speed
4.
What is the attractive force that exists between all objects that have mass?
a)
Weight
b)
Mass
c)
Gravity
d)
Viscosity
5.
If these boys 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.
6.
A force that slows or stops motion when objects rub together.
a)
Friction
b)
Push
c)
Pull
d)
Magnetism
7.
if you have balanced forces on a ball what happens
a)
It stays still
b)
Keeps going
c)
:(
d)
:)
8.
What is the net force?
a)
40 N left
b)
0 N Balalnced
c)
400 N right
d)
40 N right
9.
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.
10.
For a force on an object there is an equal and opposite force.
a)
Newton’s first law of motion
b)
Newton’s second law of motion
c)
Newton’s third law of motion
11.
A force in the opposite direction to the motion of the object will cause the object to
a)
speed up
b)
slow down
c)
turn
d)
crash
12.
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
13.
What Unit do we Measure Force in?
a)
Newtons
b)
Joules
c)
Force
d)
Don't know
14.
You push on a tree with 20 N of force. If the tree doesn't move, the tree is pushing back on you with _____of force.
a)
20N
b)
40N
c)
10N
d)
70N
15.
A 20 kg bike accelerates at 10 m/s2. what was the force
a)
25
b)
200 N
c)
20 N
d)
10 N
16.
A person is pushed forward into their seatbelt when a car stops
a)
1st
b)
2nd
c)
2 and 3
d)
3rd
17.
What is Newton's First Law known as? The Law of
a)
Friction
b)
Mass
c)
Inertia
d)
Gravity
18.
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
19.
Which law explains why when you put a book on a table the table pushes on the book
a)
3rd law
b)
4th law
c)
1st law
d)
2nd law
20.
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
21.
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
22.
Object at rest stays at rest.
a)
1st
b)
2nd
c)
3rd
23.
F = MxA
a)
1st
b)
2nd
c)
3rd
24.
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
c)
Newton's
3rd
Law of Motion
3rd
Law of Motion
25.
You push against a wall and the wall is pushing back on you.
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
26.
A person not paying attention while skateboarding hits a rock. The skateboard stops...they don't.
a)
The Law of Inertia
b)
The Law of Acceleration
c)
The Law of Conservation of Momentum
27.
Newton's third law of motion states that _______________.
a)
for every action, there is an equal and opposite reaction
b)
an object at rest will stay at rest or an object in motion will stay in motion with a constant velocity
c)
acceleration is directly proportional to the magnitude of the force acting on it and inversely proportional to the mass of the object
d)
whenever an object is falling, gravity pulls it down
28.
The force that prevents a ball rolling on the ground from continuing on its path forever is __________.
a)
inertia
b)
gravity
c)
friction
d)
mass
29.
According to the equation F=m x a, which statement below is true when mass remains constant?
a)
Acceleration remains constant as force increases.
b)
Acceleration increases as force increases.
c)
Acceleration decreases as force increases.
d)
Acceleration remains constant as force decreases.
30.
An object is accelerating when _______________.
a)
it is not moving
b)
it is spinning around
c)
it is changing speed or direction
d)
it continues at the same speed
31.
Newton's first law of motion states that an object must travel ______ unless acted upon by an external force.
a)
in a straight line while speeding up
b)
in an orbit at a constant velocity
c)
in a straight line at a constant speed
d)
in a straight line while slowing down
32.
The chart below lists the forces applied to each of four toy cars. If all the cars accelerate at the same rate, which car must have the largest mass?
a)
P
b)
Q
c)
R
d)
S
33.
If you know the mass of an object and the force applied to it, you can use Newton's second law of motion to calculate the object's:
a)
acceleration
b)
density
c)
composition
d)
volume
34.
Suppose you were to fill a balloon with air then let go of it without tying it closed. What causes the balloon to fly away?
a)
Your breath contains helium, which is lighter than air.
b)
The balloon's movement is the reaction to the force of air escaping.
c)
The balloon's movement is the reaction to the force of air escaping.
d)
The air around the balloon is under higher pressure, so it pulls the balloon forward.
35.
The tendency of an object to resist changes in its motion is...
a)
inertia
b)
force
c)
acceleration
d)
velocity
36.
The combination of all the forces acting on an object is the...
a)
net force
b)
action force
c)
reaction force
d)
balance force
37.
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
38.
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
39.
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
40.
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
41.
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
42.
A force that opposes motion between a surface in contact with the atmosphere.
a)
air resistance
b)
gravity
c)
momentum
d)
terminal velocity
43.
____________ is the ability to cause change.
a)
Energy
b)
Force
c)
Friction
d)
Motion
44.
Energy due to motion is ____________ energy.
a)
Potential
b)
Energy
c)
Kinetic
d)
Friction
45.
The faster an object moves, the ________ kinetic energy it has.
a)
more
b)
less
c)
none of the above
d)
all of the above
46.
__________ is stored energy.
a)
Potential
b)
Kinetic
c)
None of the above
d)
All of the above
47.
Gravitational potential energy depends on the ________ and ________ of the object.
a)
Height and mass
b)
Friction and movement
c)
Mass and Movement
d)
Height and Friction
48.
When you stretch a rubber band, you are storing __________ energy.
a)
kinetic
b)
potential
c)
none of the above
d)
all of the above
49.
which point has the most potential energy
a)
G
b)
f
c)
b
d)
a
50.
Which letter has the most kinetic energy?
a)
W
b)
X
c)
Y
d)
Z
51.
Can energy be destroyed?
a)
no
b)
yes
52.
As a pendulum swings from its highest to lowest position, what happens to its potential and kinetic energy?
a)
Both the potential energy and kinetic energy decrease
b)
The potential energy decreases while the kinetic energy increases
c)
The potential energy increases and the kinetic energy decreases.
d)
Both the potential energy and kinetic energy increase
53.
When a pendulum swings, at which point is kinetic energy highest?
a)
1
b)
2
c)
3
d)
4
54.
When a pendulum swings, at which point is potential energy at its greatest?
a)
1
b)
2
c)
3
d)
4
55.
Energy can be _____________ , or changed from one type to another.
a)
destroyed
b)
transferred
c)
created
d)
ignored
56.
Which would have the greatest gravitational potential energy?
a)
A 4 pound rat on a school desk
b)
A 45 pound dog in a 100 year old oak tree
c)
A 14 pound platypus on a swing
d)
A 45 pound child on a bike
57.
What kind of energy is in a moving skateboard?
a)
Potential
b)
Kinetic
58.
What kind of energy is in a rock at the edge of a cliff?
a)
Potential
b)
Kinetic
59.
Which is the best example that something has kinetic energy?
a)
a. a car parked on a steep hill
b)
b. a tennis ball rolling across the court
c)
c. a picture hanging on the wall
d)
d. a piece of coal before it's burned
60.
What is the Law of Conservation of Energy?
a)
Energy can be created.
b)
Energy can be destroyed.
c)
New chemicals formed from a chemical reaction have a larger overall energy than the original reactants
d)
Energy is never created or destroyed. It can only be transferred or changed from one form to another.
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