WorksheetsForces and Motion: pre-assessment
Total questions: 23
Worksheet time: 12mins
What causes a change in an object's motion?
Balanced forces
Acceleration
Unbalanced forces
In the picture, what force is acting upward on the skydiver?
Gravity
Air resistance
In the picture, what force is acting downward on the skydiver?
Gravity
Air resistance
A cyclist rides north past an old man sitting on a bench. What direction will the cyclist see the old man moving? Assume that the old man is sitting still.
North
South
East
West
The old man will not appear to be moving
What would be a good reference point to describe the motion of the Earth within our solar system?
The sun
The Earth
The mountains on Earth
The Milky Way
What makes a good reference point?
Something that is in constant motion
Something that is acceleration
Something that is stationary (not moving)
Something that is decelerating
What is the Net Force on the box shown below?
12N upward
12N downward
23N to the right
17N to the left
17N to the right
What is the Net Force on the box shown below?
100N upward
150N left
0N
During a baseball game, a hitter strikes the ball with a bat. When this happens, the ball and the bat exert a force on each other. Why does the ball accelerate away from the bat more than the bat accelerates away from the ball?
The ball has greater velocity before the collision, so the force affects the ball more than it affects the bat.
The bat exerts more force than the ball because the batter is exerting a force on the bat as it hits the ball.
The ball has less mass, so the equal force on the ball and the bat causes greater acceleration of the ball.
A person is staying in the middle of a boxcar on a train moving 100km per hour (see image). If the motion of the boxcar remains constant, where in the boxcar will the person most likely land after he jumps straight up?
Which term is an example of force?
Energy
Mass
Weight
Work
Horizontal forces act on two boxes, initially at rest, as shown. The magnitude and direction of the horizontal forces are also shown. What happens to Box X and Box Y as a result of the forces?
Box X starts moving, speeding up, and Box Y remains at rest.
Box X starts moving at constant speed, and Box Y remains at rest.
Box X starts moving at constant speed, and Box Y starts moving, speeding up.
Box X starts moving, speeding up, and Box Y starts moving at a constant speed.
A battery-powered toy submarine is moving through water at constant speed and at a constant depth below the surface. The diagram shows the submarine with arrows representing the directions but not the magnitudes of four forces acting on it. Which conclusion can be made about the magnitudes of the forces acting on the submarine?
Force Q is equal to Force S and Force R is equal to Force T.
Force Q is less than Force S and Force R is equal to Force T.
Force Q is equal to Force S and Force R is greater than Force T.
Force Q is less than Force S and Force R is greater than Force T.
.....................are the pushes and pulls that affect motion.
Forces
Gravity
Mass
Air Resistance
.....................is a force that pulls objects together. On Earth, it is a force that pulls all objects to Earth's center.
Forces
Air Resistance
Gravity
Mass
...................is a force caused by two things rubbing against each other.
Force
Friction
Gravity
Mass
..................is the amount of matter in an object
Matter
Mass
Force
Gravity
................and.................are forces that affect the motion of all objects.
Mass and Distance
Gravity and Force
Friction and Gravity
Gravity and Mass
Forces that are equal in size and opposite in direction are called...............
balanced forces
unbalanced forces
Forces that are not equal in size and opposite in direction are called ....................
unbalanced forced
balanced forces
..................of motion explains how acceleration, force, and mass are related. It says an object's acceleration depends on the mass of the object and the size of the force acting on it.
Newton's First Law
Newton's Third Law
Newton's Second Law
The same ..................will accelerate a small mass more than a large mass.
mass
force
The downward force is and the upward force is .
Gravity/ air resistance
Air resistance/ Gravity
Mass/ Distance
