WorksheetsForce, Friction, Gravity Assessment
Total questions: 98
Worksheet time: 2hrs 57mins
Name
Class
Date
1.
Wheels on a skateboard most likely experiences-
a)
Rolling Friction
b)
Sliding Friction
c)
Fluid Friction
d)
Static Friction
2.
Sally experiences-
a)
Rolling Friction
b)
Sliding Friction
c)
Fluid Friction
d)
Static Friction
3.
Friction is a force that acts in an ___________ direction of movement.
a)
similar
b)
opposite
c)
parallel
d)
west
4.
Which of the following is an example of friction that is helpful?
a)
Brakes used on a bike
b)
Tires from a car on the road
c)
Tread on the bottom of your shoes
d)
All are examples that are helpful
5.
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
6.
The amount of friction depends on the weight of the objects pressing together.
a)
True
b)
False
7.
The rougher the surface, the faster an object will travel over the surface.
a)
True
b)
False
8.
When most objects with smooth surfaces rub, there is less friction.
a)
True
b)
False
9.
What are 2 factors that determine the amount of friction between 2 objects?
a)
Force and roughness between surfaces
b)
hills and valleys and how smooth or rough the surface is
c)
Amount of force and amount of surface the comes in contact
d)
The force and the weight exerted on the surfaces
10.
If an object has MORe _______, it will have more gravitational force.
a)
mass
b)
distance
11.
A person weighs _____ on the moon than they do on Earth.
a)
less
b)
more
c)
the same
12.
A person would weigh more on Jupiter than on the Earth because . . .
a)
Jupiter has more mass, and therefore more gravity
b)
Jupiter has less mass, and therefore more gravity
c)
Jupiter has more mass, and therefore less gravity
d)
Jupiter has less mass and therefore less gravity
13.
What is the SI unit used to measure force?
a)
pounds
b)
grams
c)
newtons
d)
kg/ m2
14.
The force of gravity is also known as
a)
Mass
b)
Weight
c)
Distance
d)
Acceleration
15.
As distance between two objects increase the pull of gravity
a)
Increases
b)
Decreases
c)
Stays the same
16.
The force of gravity acting on an object is the object's ______.
a)
mass
b)
matter
c)
weight
d)
terminal velocity
17.
Which of the following will not change in different gravitational fields?
a)
weight
b)
force
c)
mass
d)
pounds
18.
Both of these are measured in Netwons
a)
Force and acceleration
b)
Force and weight
c)
Mass and weight
d)
Mass and acceleration
19.
What Unit do we Measure Force in?
a)
Newtons
b)
Joules
c)
Force
d)
Don't know
20.
With unbalanced forces, the object will move in the direction that the _______ force is being applied.
a)
larger
b)
smaller
c)
equal
21.
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
22.
Which has more Inertia? (so need more force to move)
a)
Truck
b)
Ant
c)
A cat
d)
A skateboard
23.
A 20 kg bike accelerates at 10 m/s2. what was the force
a)
25
b)
200 N
c)
20 N
d)
10 N
24.
Unit of mass
a)
m/s 2
b)
m/s
c)
newtons
d)
kg
25.
A person is pushed forward into their seatbelt when a car stops
a)
1st
b)
2nd
c)
2 and 3
d)
3rd
26.
What is Newton's First Law known as? The Law of
a)
Friction
b)
Mass
c)
Inertia
d)
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.
What is the name for a push or pull?
a)
A movement
b)
A force
c)
Speed
d)
Density
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.
__________ 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
31.
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
32.
Pushing a child on a swing is easier than pushing an adult on the same swing.
a)
1st Law
b)
2nd Law
33.
Our balloon rocket experiment launched the balloon on the straw with air blowing out of the balloon and the balloon traveling in the opposite direction. Which of Newton's laws is this?
a)
first
b)
second
c)
third
d)
fourth
34.
A ball thrown at the ground bounces back up.
a)
Law of Inertia (1st Law)
b)
Law of Mass and Acceleration (2nd law)
c)
Law of Action Reaction (3rd Law)
35.
A soccer ball accelerates more than a bowling ball when thrown with the same force.
a)
1st Law
b)
2nd Law
c)
3rd Law
36.
What is the unit called that measures force?
a)
Isaac
b)
Yee
c)
Newton
d)
kilogram
37.
The term inertia means an object's resistance to motion; which of Newton's laws involves inertia?
a)
first
b)
second
c)
third
d)
fourth
38.
Which of Newton's laws is illustrated when a magician pulls a tablecloth out from under the dishes without disturbing them?
a)
first
b)
second
c)
third
d)
fourth
39.
A(n) __________ is a push or pull.
a)
newton
b)
acceleration
c)
force
d)
momentum
40.
Pushing a child on a swing is easier than pushing an adult on the same swing.
a)
1st Law
b)
2nd Law
41.
If you exert a net force of 8 N on a 2-kg object, what will its acceleration be?
a)
2 m/s2
b)
4 m/s2
c)
16 m/s2
d)
10 m/s2
42.
What is the force applied to all objects on Earth?
a)
Earthquakes
b)
Gravity
43.
____ is the rubbing force that acts against motion between two touching surfaces.
a)
Acceleration
b)
Normal force
c)
Momentum
d)
Friction
44.
When the net force is zero, the forces on an object are balanced. True or false.
a)
true
b)
false
45.
A ____ force is the total force felt by an object.
a)
sum
b)
net
c)
strong
d)
balanced
46.
Any time the forces are unbalanced, an object will remain at rest. True or false?
a)
true
b)
false
47.
The upward force on an object falling through the air is _________.
a)
air force
b)
weight
c)
air resistance
d)
upheaval
48.
According to Newton's First Law, an object's velocity will not change unless _____ acts upon it.
a)
a balanced force
b)
an unbalanced force
c)
zero force
49.
If you travel to Mars, where gravity is 38% of Earth's gravity, what will happen to your mass and weight?
a)
Your mass and weight will both be greater than on Earth.
b)
Your mass and weight will both be less than on Earth.
c)
Your mass will be the same, but your weight will be less than on Earth.
d)
Your mass will be less than on Earth, but your weight will be the same.
50.
The scientist who is most famous for developing the Laws of Motion is _____.
a)
Albert Einstein
b)
Stephen Hawking
c)
Sir Isaac Newton
d)
Galileo Galilei
51.
A ball thrown at the ground bounces back up.
a)
Law of Inertia (1st Law)
b)
Law of Mass and Acceleration (2nd law)
c)
Law of Action Reaction (3rd Law)
52.
A soccer ball accelerates more than a bowling ball when thrown with the same force.
a)
1st Law
b)
2nd Law
c)
3rd Law
53.
Once the engine stops, a rocket coasts through space.
a)
Law of Inertia
b)
Law of Mass and Acceleration
c)
Law of Action Reaction
54.
If a baseball and a cannonball are dropped from the same height at the same time, which ball will hit the ground first?
a)
the cannonball
b)
the baseball
c)
The balls land at the same time.
d)
the ball with the larger volume
55.
The baseball player experiences-
a)
Rolling Friction
b)
Sliding Friction
c)
Fluid Friction
d)
Static Friction
56.
Swimming fish experience-
a)
Rolling Friction
b)
Sliding Friction
c)
Fluid Friction
d)
Static Friction
57.
Objects balanced on Timmy's head experiences-
a)
Rolling Friction
b)
Sliding Friction
c)
Fluid Friction
d)
Static Friction
58.
The units for momentum are
a)
kg
b)
m/s
c)
kg-m/s
d)
kg/m/s
59.
The formula for momentum is
a)
mass divided by velocity
b)
mass multiplied by velocity
c)
velocity divided by mass
d)
Force times acceleration
60.
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
61.
In any collision (crash) the ______ is ALWAYS constant
a)
Total Momentum
b)
total speed
c)
total Velocity
d)
Energy
62.
True or False: Weight is a Force
a)
True
b)
False
63.
Movers slide a box down the ramp of a truck.
What helps slow the box as it slides to the bottom of the ramp?
What helps slow the box as it slides to the bottom of the ramp?
a)
friction
b)
gravity
c)
inertia
d)
magnetism
64.
A man is pushing a ball up a hill. If the man stops pushing the ball and steps out of the way, what will most likely happen to the ball?
a)
It will stop on the hill.
b)
It will roll down the hill.
c)
It will roll to the side toward the man.
d)
It will fly.
65.
a push or a pull
a)
force
b)
contact force
c)
noncontact force
d)
friction
66.
Mass is measured in ___________.
a)
Kilograms
b)
newtons
c)
joules
d)
mililiters
67.
Amount of matter in an object
a)
weight
b)
force
c)
mass
d)
colume
68.
This pull keeps the Earth moving around the sun.
a)
magnetism
b)
gravity
c)
friction
d)
poles
69.
The force that opposes, or slows down, motion between two surfaces that are touching.
a)
gravity
b)
friction
c)
magnetism
d)
poles
70.
What does friction produce?
a)
light
b)
sound
c)
heat
d)
gravity
73.
What is the unit called that measures force?
a)
weight
b)
meter
c)
Newton
d)
kilogram
74.
Which best describes the role friction plays in the operation of a car?
a)
Friction makes a car go faster.
b)
Friction keeps a car from stopping.
c)
Friction turns the car in a new direction.
d)
Friction helps a car slow down and stop.
73.
What is the unit called that measures force?
a)
weight
b)
meter
c)
Newton
d)
kilogram
74.
Which best describes the role friction plays in the operation of a car?
a)
Friction makes a car go faster.
b)
Friction keeps a car from stopping.
c)
Friction turns the car in a new direction.
d)
Friction helps a car slow down and stop.
75.
Which is a force that keeps Earth in orbit around the Sun?
a)
friction
b)
gravity
c)
radiation
d)
magnetism
76.
Weight and Mass are the same thing.
a)
True
b)
False
77.
The force that pulls things toward earth.
a)
Speed
b)
Gravity
78.
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
79.
What famous scientist was the SI units of Force named after?
a)
Isaac Newton
b)
Galileo Galilei
c)
Albert Einstein
d)
Charles Darwin
80.
What is the net force?
a)
5000 N right
b)
4000 N right
c)
40 N left
d)
4000 N left
82.
Which one is balanced?
a)
top
b)
bottom
c)
both
82.
Which one is balanced?
a)
top
b)
bottom
c)
both
83.
Is this and example of a balanced or unbalanced force?
a)
balanced
b)
KITTIES!
c)
unbalanced
d)
pshhh
85.
What is the net force?
a)
17 N Right
b)
3 N Right
c)
3 N Left
d)
17 N Left
85.
What is the net force?
a)
17 N Right
b)
3 N Right
c)
3 N Left
d)
17 N Left
86.
What is Newton's First Law known as? The Law of
a)
Friction
b)
Mass
c)
Inertia
d)
Gravity
87.
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
88.
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
89.
What is the standard unit force is measured in?
a)
N
b)
lbs
c)
g
d)
m/s
90.
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.
91.
The tendency of an object at rest to stay at rest unless it is acted upon by a force is called ___________________
a)
inertia
b)
motion
c)
gravity
d)
lubricant
92.
Acceleration: is the rate of change in ___________.
a)
speed
b)
distance
c)
velocity
d)
displacement
93.
The unit of acceleration is:
a)
m/s2
b)
m/s
c)
m.s2
d)
m/s3
94.
Acceleration only takes place when things speed up.
a)
True
b)
False
95.
Changes in our speed, direction or both are called _________.
a)
gravity
b)
changes
c)
acceleration
d)
deceleration
96.
Why does a car accelerate as it round a corner at a constant speed?
a)
Its direction changes
b)
It doesn't
c)
It slows down
d)
It speeds up
97.
A car accelerates from a standstill to 70 m/s in 10 seconds. What is the acceleration?
a)
0.7m/s2
b)
7m/s2
c)
14m/s2
d)
none of the above
98.
A roller coasters accelerates from an initial velocity of 6.0 m/s to a final velocity of 70 m/s over 4 seconds. What's the acceleration?
a)
24 m/s2
b)
18 m/s2
c)
16 m/s2
d)
16 m/s
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