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WorksheetsForces Review
Total questions: 71
Worksheet time: 53mins
Taryn is playing with a bouncy ball. She notices that the ball seems to travel faster on its way back toward the ground than on its way up into the sky. Why would the ball go slower moving away from the ground?
because the ball must move against the force of Earth's gravitational field on the way up
because the ball must move against the force of Earth's magnetic field on the way up
because the ball moves with the friction force of air molecules on the way down
because the ball moves with the elastic force of air molecules on the way down
Kevin places a book on a desk. Why does the book stay still on the desk?
There are no upward forces on the book.
There are no downward forces on the book.
The forces acting on the book are balanced.
The forces acting on the book are unbalanced.
Which of the following explains why an apple would fall from a tree?
the gravitational attraction between the apple and Earth
the kinetic attraction between the apple and Earth
the potential attraction between the apple and Earth
the weak attraction between the apple and Earth
A teacher is demonstrating acceleration to his class by throwing two balls. He throws both balls using the same amount of force in the same direction. The first ball he throws has a mass of 0.1 kg and the second ball has a mass of 0.5 kg. Which statement BEST compares and describes the likely results of the demonstration?
The first ball has a smaller mass, so it will have less acceleration than the second ball.
The first ball has a smaller mass, so it will have greater acceleration than the second ball.
The balls will have equal acceleration because they are being thrown in the same direction.
The balls will have equal acceleration because they are being thrown with the same force.
Which argument is supported by the results of the investigation?
The acceleration of an object is proportional to the mass of the object but not the force applied to it.
The acceleration of an object is proportional to the force applied to the object but not the mass of it.
The acceleration of an object is proportional to both the mass of the object and the force applied to it.
The acceleration of an object is neither proportional to the force applied to the object nor the mass of it.
A little girl pushes her toy car along the concrete sidewalk. Eventually, the toy car slows down and comes to a stop. What force played the greatest role in causing the toy car to slow down and stop?
frictional force
gravitational force
the force from the girl's push
the normal force from the ground
If the force of each team is balanced by the other, then
both teams will fall to the ground.
both teams will move to the right.
both teams will move to the left.
both teams will remain in place.
Which of the following describes what will happen when the ball hits the seesaw?
The box will move up against gravity
The box will stay in the same position.
The box will slide off the seesaw.
The box will move closer to the ground.
Which answer choice best explains why tractor trailers take more time to speed up and slow down than regular cars?
Tractor trailers have less mass and require less force to move.
Tractor trailers have more mass and require more force to move.
Tractor trailers have less mass and require more force to move.
Tractor trailers have more mass and require less force to move.
What do you call a push or pull on an object?
Chemical
Force
Magnet
Which force holds us to earth's surface?
Friction
Mass
Gravity
The amount of matter in an object is known as?
Mass
Weight
Volume
At which location would your mass be the greatest?
Earth
Moon
Your mass stays the same everywhere.
Gravity affects which of the following?
Mass
Weight and Mass
Weight
What force keeps the moon in orbit around the Earth?
weight
mass
gravity
Which surface would cause the greatest friction?
carpet
ice
snow
Which force acts on an object by touching the object?
Electricity
Friction
Gravity
When sand is poured on an icy road, what force are we increasing to help cars stay on the road?
Electricity
Friction
Gravity
The force of attraction between two objects that depends on the masses of the objects and the distance between the objects
friction
pull
gravity
Gravitational force exerted on an object.
gravity
weight
mass
Objects in motion tend to stay in motion, objects at rest tend to stay at rest, unless acted upon by a force.
gravity
friction
inertia
What does letter A represent
object providing force
object receiving force
gravity
friction
What does letter C represent
object providing force
object receiving force
gravity
friction
What does letter B represent
object providing force
object receiving force
gravity
friction
What does letter D represent
object providing force
unbalanced force
gravity
friction
According to Newton's second law of motion, a/an ________ force will cause an object to move in the direction of the force.
balanced
unbalanced
equal
Yoda
What is the measure of force?
Newtons
Light years
Inches
Gallons
___________ is an opposing force that makes objects in motion slow down.
force
speed
friction
mass
The sum of all forces acting on an object and direction is called the
Balanced Force
Net Force
Unbalanced Force
Contact Force
Are the forces balanced or unbalanced?
Balanced
Unbalanced
To make an object move you must first apply ---
an opposing force
an unbalanced force
a stationary force
a vertical force
A student pushes against a wall with 20 N of force and the wall does not move. In this situation, the wall exerts --
0 N of force
less than 20 N of force
20 N of force
more than 20 N of force
The FIRST part of Newton's 1st law states:
An object at rest will stay at rest
An object in motion will stay in motion
An object at rest will stay in motion
An object in motion will stay at rest
The SECOND part of Newton's 1st law states:
An object at rest will stay at rest
An object in motion will stay in motion
An object at rest will stay in motion
An object in motion will stay at rest
The THIRD part of Newton's 1st law states things will move the way they are moving right now...:
UNLESS acted upon by an inside force
UNLESS unchanged by an outside force
UNLESS acted upon by a balanced force
UNLESS acted upon by an outside force
What is a force that equals the forces acting on an object in the OPPOSITE direction
Acceleration
Unbalanced Force
Balanced Force
Inertia
What is weight?
the force of gravity on a person or object at the surface of a planet
the amount of matter in an object
anything that has mass and takes up space
force that two surfaces exert on each other when they rub against each other
What is friction?
the force of gravity on a person or object at the surface of a planet
the amount of matter in an object
anything that has mass and takes up space
force that two surfaces exert on each other when they rub against each other
Newton's 2nd Law: Acceleration depends on an object's _____ and the _____ ________ acting on the object.
inertia
gross
force
inertia
net
force
mass
net
force
mass
gross
force
What is the strength or force that something has because it is moving
weight
momentum
acceleration
air resistance
What will have more force?
Mr. McCrea dropped all of these things from the same height at the same time.
a marble
a baseball
a bowling ball
a beach ball
Balanced or Unbalanced?
Balanced. Positive net force.
Unbalanced. Positive net force.
Unbalanced. Zero net force.
Balanced. Zero net force.
It takes more force to accelerate the iron man on the left than the iron man on the right. Why?
The iron man on the left is taller.
The iron man on the left has more mass.
The iron man on the right is shorter.
The iron man on the right has his mask down.
Mass is a measure of an object's inertia. Objects with greater mass have a _____ inertia; objects with less mass have _____ inertia.
greater; less
less; greater
less; less
greater; greater
This game of tug of war is an example of _________ forces.
unbalanced
balanced
potential
net zero
A force that opposes motion is
friction
inertia
acceleration
momentum
7. A car traveling at 90 kilometers/hour when it suddenly stops. The passengers in the car will
continue to move in a straight line and will slide forward in the car.
come to a stop at the same time the car stops
be pushed against the door on the passenger side
be pushed against the door on the driver's side
The force that keeps satellites in orbit around Earth is
magnetic
friction
electrical
gravity
Person on the left = 45 N
Person on the right = 32 N
What is the net force?
zero N
10 N
77 N
13 N
What will the net force on the soccer ball be?
50 N to the left
50 N to the right
200 N to the left
200 N to the right
If Bob pushes a box north with 40 N of force and Bill helps by pulling the box north with 20 N of force, what is the net force acting on the box?
20 N
60 N
If forces are in the same direction you add all forces together and if they are in opposite directions you will subtract the smaller force from the larger force.
True
False
Which of the following would have the best friction?
ice covered road
gravel road
asphalt road
Which of the following is NOT a way to reduce friction?
sanding
grease or oil
increasing the texture
Gravitational attraction between 2 objects decrease as the
objects distance from each other increases.
objects distance from each other decreases.
objects distance from each other stays the same.
Gravitational force increases as mass increases.
True
False
If you increase the force on an object, its acceleration
decreases
stays the same
also increases
stops
If you increase the mass of an object, its acceleration
decreases
stays the same
also increases
stops
A resistance to a change in motion is
acceleration
inertia
gravity
velocity
The amount of inertia an object has depends on its
speed
volume
mass
length
