WorksheetsForce and Motion Review
Total questions: 70
Worksheet time: 2hrs 42mins
frame of reference
point of contact
To make an object move you must first apply ---
an opposing force
an unbalanced force
a stationary force
a vertical force
a force is best defined as ---
the application of weight
a push or pull that is exerted on matter
the flow of electric charges
a bond in which electrons are shared
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
Which change would require more force to pull the wooden block up the ramp?
Have the student use two hands
Reduce the mass of the wooden block.
Restack the books so the thinnest book is on the bottom.
Glue sandpaper to the surface of the ramp.
Oliver stepped onto a three-car subway train with standing room only. What caused him to fall backward into other riders when the train suddenly moved forward?
He was riding in the last car of the train.
He had heat exhaustion from the overcrowded train.
Oliver's body resisted a change in the subway train's inertia.
Oliver's body was responding to the force of gravity.
Which law of motion predicts that a moving hockey puck will continue to move in the same direction at the same speed unless acted upon by an unbalanced force?
Newton's First Law of Motion
Newton's Second Law of Motion
Newton's Third Law of Motion
Newton's Law of Universal Gravitation
Which law explains the relationship among mass, force and acceleration?
Universal Law of Gavitation
Newton's First Law of Motion
Newton's Second Law of Motion
Newton's Third Law of Motion
The force of an object, with a certain mass accelerating at a certain rate, can be determined by using the equation below.
force = mass x acceleration
Which object would have the greatest force?
A 5 kg object accelerating at 10 m/s
A 5 kg object accelerating at 20 m/s
a 20 kg object accelerating at 4 m/s
a 20 kg object accelerating at 3 m/s
The diagram below show the forces acting on a soccer ball.
In which of the diagrams will the ball remain motionless?
W
X
Y
Z
In the diagram below, a girl sits on a sled and slides down a hill of snow. Which arrow represents the force of friction opposing the motion of the sled down the hill?
Arrow A
Arrow B
Arrow C
Arrow D
Which of these examples best illustrates Newton's Second Low of Motion?
A 100 Ib boy has twice as much inertia as a 200 Ib boy.
A truck needs a more powerful engine than a small car.
A hockey puck slides easily across the ice.
A satellite stays in orbit for a long time.
According to Newton's Third Law of Motion, if Mike pushes down on the springboard to being his dive, what is the reaction force?
Mike splashing into the water
The springboard pushing Mike into the air
The height of the water when Mike enters the water
The sound the board makes as he pushes into the air
Which principle best explains why the sprinkler spins?
Every action has an equal and opposite reaction.
Solid substances are usually more dense than liquid substance.
Energy is released when water condenses.
Most substances expand when heated and contract when cooled.
Ana pushed on a big rock in her back yard. She was unable to get it to move because she did not -
apply enough force
have a good grip on the rock
have enough mass
weigh enough
Many bicycles use a hand brake to control their speed. When the brake is engaged, a rubber pad presses against the tire. What force of motion does the hand brake rely upon to slow the bicycle?
Gravity
Friction
Electricity
Magnetism
In a head-on collision, a person who is not wearing a seat belt continues to move forward at the original speed of the car because of -
weight
mass
gravity
inertia
Billy pushes his little brother on a sled through the snow. He then tries to push his father on the the same sled. He noticed that it was much harder to push his father. Which law is this an example of?
1st Law (Law of Inertia)
2nd Law (Law of Acceleration)
3rd Law (Law of Action-Reaction)
What is the net force on the box shown here?
10 N to the left
10 N to the right
60 N to the left
50 N to the right
Which force always pulls downward on objects?
Support force
Friction force
Gravity
Air resistance
Describe the motion of a person not wearing a seat belt if the car stops suddenly.
The person and car will stop together.
The person will stop faster than the car because they are lighter.
The car will stop and the person will keep moving forward because of inertia.
The car will stop and the person will speed up.
A falling object is pulled down by the earth. The earth is pulled up toward the object. Why doesn’t the earth move?
Only the earth has gravity.
The Earth has a very large mass and a small acceleration.
The Earth has a very small mass and a large acceleration.
Air resistance gets in the way.
This test paper is sitting at rest on your desk. Which of the following statements best describes this situation?
There are no forces acting on your paper.
Your paper pushes on the desk only.
The desk pushes on your paper only
The forces acting on the paper are balanced.
Two students on opposite sides of a box apply forces to the box. What must be true if the box doesn't accelerate?
The forces are equal in strength and in opposite directions.
One student must be pushing the box while another student pulls it.
One student is applying a greater force.
Both students are applying forces in the same direction.
A girl jumps forward off a boat. According to Newton's 3rd law of motion, what happens to the boat?
the boat also moves forward
the boat remains motionless
the boat moves backward
the boat moves backward and then forward
If two forces on an object at rest act in the same direction, what must be true about the motion of the object?
the object must remain at rest
the object must move at constant velocity
the object must have different accelerations because of the two different forces
the object must accelerate in the opposite direction of the forces
A student places a ball on the ground and kicks it hard. The ball moves along the ground. Which statement is true?
The kick decreases the weight of the ball
The kick applies force, which changes the direction of the ball.
The kick decreased the force of gravity acting on the ball.
The kick removes friction between the ball and the ground.
You have two objects of the same mass that collide. If they are going the same speed when they collide. What would be the result of the force?
The net force is going towards the left.
The net force is going towards the right.
The net force is zero. The forces will cancel each other.
Which ball would create more force upon impact?
a fast moving ball
a slow moving ball
a ball at rest
none of the above
2. A skater pushes off a wall and skates backward for a few meters before stopping. Which statement best describes an action-reaction force pair in this situation?
The wall pushes on the skater when the skater pushes on the wall.
The wheels slow down, and the skater stops.
The skater exerts a force on the wall, and the wheels exert a force on the floor.
The friction of the floor decreases when the wheels roll on the floor.
8. A mother and daughter press their hands together and then push apart while ice skating. Immediately after they push away from each other, how does the motion of the mother and daughter change?
The mother moves forward, and the daughter moves backward with a greater acceleration.
Both move forward, but the mother moves with a greater acceleration.
The mother moves backward, and the daughter moves forward with a greater acceleration.
Both move backward, but the daughter moves with a greater acceleration since she has less mass.
A marble rolls along a track and eventually drops into a shallow cup. If friction and air resistance are not considered, when does the ball experience balanced forces during route?
Locations 1, 6, and 8
Locations 2, 5, and 7
Locations 3, 4, and 6
Locations 1, 4, and 8
The diagram shows two men pushing a stalled car on a level road. What would happen if a third man also pushed the car and supplied an additional 420 N of force?
The car would move at a constant speed
The car would increase in speed
The car would decrease in speed
The car's motion would be unaffected
A water slide is shown below with locations identified on the rider's path. the speed of an average ten- year old is recorded in the table. Which statement best describes the person's movement on the waterslide?
the speed at locations A and E are the same because of unbalanced forces
the speed decreases between locations D and E because of balanced forces
the speed increases between locations B and C because of unbalanced forces
the speed decreases between locations B and D because of balanced forces
Removing a table cloth from a table set with dishes is a common trick. If performed correctly, the dishes remain on the table after the table cloth has been pulled from the table. While some people claim it is "magic," the actions can be explained by Newton's Laws of Motion. Which statement best explains why the dishes remain on the table after the table cloth is removed?
the unbalanced force applied to the table cloth is stronger than the force of gravity, so the dishes stay on the table
the frictional force of the table holds the dishes in place while the table cloth is being removed
the inertia of the dishes causes them to remain at rest, even though the table cloth is moving
the acceleration of the table cloth is equal and opposite to the mass of the dishes
During a spacewalk, safety equipment worn by astronauts is used to assist the astronaut in navigating back to the spacecraft in case of an emergency. The equipment contains thrusters that expel nitrogen gas a specific direction, allowing the astronaut to move through the vacuum of space. Based on Newton's 3rd Law of Motion which thrusters should be used if the astronaut wants to move in the direction of the arrow?
Thrusters 1 and 2
Thrusters 3 and 4
Thrusters 5 and 6
Thrusters 7 and 8
CC wanted to see how long it took for a roller coaster to complete one trip around the track. She first timed the roller coaster when the cars were empty. Then, she timed the roller coaster when the cars were full of riders. Carmen's results are shown in the table below. Which statement is the best conclusion based on Carmen's data?
The amount of mass in the cars affects the acceleration
The ride was smoother when the roller coaster was full
Gravity was stronger when the roller coaster contained riders
The roller coaster traveled a greater distance when it was full
Motorcycles come in many sizes and shapes to meet the needs of the riders. the mass of four common styles is given in the table below. If the same amount of acceleration was desired, which motorcycle will require the largest force?If the same amount of acceleration was desired, which motorcycle will require the largest force?
Motorcycle A
Motorcycle B
Motorcycle C
Motorcycle D
Crash dummies are used to determine the safety and efficiency of automotive seatbelts during an accident. In one experiment, two identical cars were used to rest the effectiveness of the lap belts and shoulder harnesses without deploying the airbags. Test Car A traveled 15 mph and hit a wall head-on. Test Car B hit the same wall head-on while traveling 25 mph.
The crash dummy registered a higher force from the seatbelt in Test Car B
The crash dummy registered a lower force from the seatbelt in Test Car B
The crash dummies registered the same force in both cars because the cars were identical and hit the same wall
The seatbelts were not able to restrain the crash dummy in Test Car B due to the higher speed
Chase applied controlled forces to four different objects and measured the acceleration of each object. The results of his experiment are shown in the table. Based on Chase's results, which object has the most mass?
Object #1
Object #2
Object #3
Object #4
Becca and Brenda are identical twins. They are the same hight and have identical mass. If the two girls wear identical roller skates and stand facing each other on a level surface, what movement will result if Becca applies a force by straightening her arms
Becca would move backward and Brenda would not move
Brenda would move backward and Becca would not move
Both girls would move backward and in opposite directions.
Neither girl would move because they are the same height and mass
How does Newton's first law of motion apply to a ball rolling across the gym floor after an unbalanced force is applied?
the ball will stop at the line halfway across the gym
the ball will continue to roll until an unbalanced force is applied
the ball will start bounding until it hits the wall
the ball will roll in a zigzag pattern to the other end of the gym
