WorksheetsPhysical Science Forces Review
Total questions: 22
Worksheet time: 43mins
James is driving a car and has a mass of 60kg. Vlad is his passenger and has a mass of 90kg. James suddenly brakes to avoid hitting a deer. Who experiences the greatest force due to seatbelt?
James. He has the least mass.
Vlad. He has the greatest mass.
James. He has the greatest speed.
James. He has the least speed.
Four blocks of varying mass are kept on the same surface as shown in the image. If the same force is applied to all four, which will gain speed the fastest?
2 kg block
3 kg block
4 kg block
6 kg block
A baseball player is able to swing with exactly the same amount of force every time. Which object would leave the bat with the greatest speed when struck by the player?
a 45 gram golf ball
a 145 gram baseball
a 540 gram croquet ball
an 8200 gram bowling ball
Two separate cannons with the same explosive charge fire different sized cannon balls. One cannon ball weighs 2 kg, and the other weighs 4 kg. The lighter 2-kg balls travels twice as fast from the cannon as the heavier 4-kg ball. Which of Newton's laws explains this behavior?
Newton's 1st Law
Newton's 2nd Law
Newton's 3rd Law
Newton's 4th Law
An inflated balloon is released from rest and moves in a horizontal direction with a velocity "v" as shown in the diagram.
action-reaction
friction
gravitational attraction
inertia
When a constant unbalanced force acts on an object in the direction of the motion, what initially happens to the objects's speed?
It decreases.
It increases.
It decreases then increases.
It remains the same.
Examine the diagram that shows two men pushing a car. How are the forces exerted by the men acting on the car?
as balanced forces with a net force of 5 N in opposite directions
as balanced forces with a net force of 105 N in the same direction
as unbalanced forces with a net force of 5 N in opposite directions
as unbalanced forces with a net force of 105 N in the same direction
A skateboard loaded with boxes is on a level surface. Two forces (F1 and F2) are acting on the skateboard as shown in the image. What is the net force acting on the skateboard, and in which will the skateboard move?
55 N; in the same direction as force F1
55 N; in the same direction as force F2
195 N; in the same direction as force F1
195 N; in the same direction as force F2
Marvin and Jordan play tug-of-war with a rope.
If Marvin wins the game, what would likely be the combination of forces applied?
Both Marvin and Jordan applied a force of 50 N each.
Both Marvin and Jordan applied a force of 80 N.
Marvin applied a force of 50 N, and Jordan applied a force of 80 N.
Jordan applied a force of 100 N, and Marvin applied a force of 40 N.
What relationship exists between mass and inertia?
As mass increases, inertia decreases.
As mass increases, inertia increases.
Mass cancels the property of inertia.
Mass stabilizes the property of inertia.
The image shows a compartment of a stopped train and a ball at rest on its floor. The arrow indicates the direction of motion of the train. How will the ball move when the train starts from rest and again when it stops?
When the train starts moving, the ball will move to the right, and when the train stops moving, the ball will continue to move to the right.
When the train starts moving, the ball will move to the left, and when the train stops moving, the ball will continue to move to the left.
When the train starts moving, the ball will move to the right, and when the train stops moving, the ball will move to the left.
When the train starts moving, the ball will move to the left, and when the train stops moving, the ball will move to the right
Which example illustrates inertia?
rock stopping after rolling down a hill
ball bouncing on a hard surface
drink spilling after car comes to a sudden stop
person standing after sitting in a chair
A magician pulls the tablecloth out from under dishes, and the dishes remain in their original place. Which Newton's Law of Motion explains why this happens?
Newton's First Law which states that an object at rest remains at rest unless acted upon by an outside force.
Newton's Second Law which states that an object's force is directly proportional to its mass times its acceleration.
Newton's Third Law which states that for every action, there is an equal and opposite reaction.
Newton's Fourth Law which states that mass can never be created nor destroyed, only transformed.
Ashley drops a basketball on the floor, and it bounces upwards. Which of Newton's laws can be used to explain why this phenomena occurs?
Newton's third law
Newton's second law
Newton's first and second law
Newton's second and third laws
A student observes the actions in four figures (1, 2, 3, and 4) and classifies each in a table. Which figures should the student classify as examples of Newton's third law of motion?
Figure 1
Figure 2
Figure 3
Figure 4
A person is paddling a canoe with an oar across a calm lake on a summer afternoon. The oar exerts an action force on the water. What can be inferred from the scenario?
The water exerts no reaction force on the oar because the water simply slides around the oar.
The water exerts a greater reaction force on the oar because it provides resistance for the oar and creates drag as the canoe moves.
The water exerts a lesser reaction force on the oar since water is a fluid and does not retain a definite shape when force is applied.
The water exerts an equal reaction force on the oar regardless of the velocity of the canoe.
If there is nothing in the path of a baseball thrown up toward the sky, what will happen to the ball?
Because of inertia, it will stay on its current until an object stops it.
It will eventually use all of its energy and fall back to the ground
The force of gravity will act on the ball, causing it to fall back to the ground.
Wind and clouds will change its direction, causing it to fall back to the ground.
Which road would exert the least amount of friction on a car?
asphalt road
gravel road
icy road
sandy road
Which ball experiences the most friction?
a ball rolling across a hardwood floor
a ball rolling across a frozen pond
a ball rolling across a cement driveway
a ball rolling across a sandy beach
Use the scenarios given to answer the question. Scenario 1: The speed of a stone dropped from a height increases continuously. Scenario 2: A bike slows down when the brakes are applied. What forces are responsible for these changes?
Both scenarios are caused by gravity.
Both scenarios are caused by friction.
Scenario 1 is caused by gravity, and scenario 2 is caused by friction.
Scenario 1 is caused by friction, and scenario is caused by gravity.
An astronaut is floating freely in space and wants to release a spent fuel container that has the same mass as he does. Which statement best describes what will happen to the astronaut and the container?
The astronaut will remain still, and the container will fly away at the speed given to it by the astronaut.
The astronaut will recoil slightly but quickly stop, and the container will move away at a constant speed.
The astronaut will move in a direction opposite to that of the container and move just as fast as the container.
The astronaut and the container will remain still since a surface is required to push off of in order to throw an object.
Which statement most accurately describes the result of the forces shown?
The skaters will move toward skater 1.
The skaters will move toward skater 2.
The skater will not move.
The skaters will move apart.
