Font size
WorksheetsFORCE AND MOTION
Total questions: 35
Worksheet time: 18mins
Mechanical Advantage
A measure of the force amplification achieved by using a tool, mechanical device or machine system.
The ratio of the force produced by a machine to the force applied to it, used in assessing the performance of a machine
Humans to perform tasks much easier in terms of the force they need to apply, but must always obey the conservation of energy
The advantage gained by the use of a mechanism in transmitting force;
Acceleration
The rate of change of velocity per unit of time
Increase in the rate or speed of something
A vehicle's capacity to gain speed within a short time
Speed
The rate at which someone or something is able to move or operate
The time rate at which an object is moving along a path
Move quickly
Each of the possible gear ratios of a bicycle or motor vehicle
Reference Point
A basis or standard for evaluation, assessment, or comparison; a criterion
A point in space, regardless of the type of geometry that you are using that stays still and does not move
A place or object used for comparison to determine if something is in motion
A point used to find or describe the location of something
Velocity
The rate at which the position changes
The rate and direction of an object's movement.
The speed of something in a given direction.
quickness of motion or action
Net Force
The vector sum of all the forces that act upon an object.
Push or pull upon an object resulting from the object's interaction with another object.
The sum of all the forces acting on an object.
The combined effect (the sum) of all the pushing and pulling forces actually acting on the object.
Unbalanced Force
Forces applied to an object in opposite directions that are not equal in size
A force that causes a change in an object's state of motion.
One force is greater than another, the forces are not balanced
Acting on an object which does not change the state of rest or of uniform motion
Balanced Force
When forces are balanced, there is no change in motion
When two forces act upon each other in opposite directions, and they are both the same size.
Equal in size and opposite in direction
Occurs when objects change in motion and can happen in two different ways.
When two objects interact, they apply forces to each other of equal magnitude and opposite direction.
1st Law of Motion
2nd Law of Motion
3rd Law of Motion
4th Law of Motion
A body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force
1st Law of Motion
2nd Law of Motion
3rd Law of Motion
4th Law of Motion
The time rate of change of the momentum of a body is equal in both magnitude and direction to the force imposed on it..
1st Law of Motion
2nd Law of Motion
3rd Law of Motion
4th Law of Motion
If the man and the ball travels 90 m in 9 seconds, what is their average speed?
10 m/s
180 m/s
99 m/s
10 meters
If a lizard can run 8 m across the water in 4 seconds, how fast is he traveling?
32 m/s
2 m/s
2 seconds
34 meters
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
2. ______________________ is any push or pull on an object.
force
mass
gravity
air resistance
Starting point you choose to describe the location (or position) of an object.
Reference Point
Relative Motion
Acceleration
Dimension
Change of position over time, an objects distance and direction from a reference point.
Speed
Acceleration
Motion
Relative Motion
Force objects exert on each other because of their masses.
Gravity
Push
Pull
Net Force
Overall force acting on an object when all of the forces on it are combined.
Balanced force
Contact force
Net force
Force
A force that resists motion when 2 surfaces rub together.
Friction
Gravity
Force
Balanced force
What is the speed formula?
d = s*t
s= time/distance
d= speed/time
s = distance/time
What units is Force measured in?
Grams
Miles
Hours
Newtons
The overall speed of an object during the entire course of a trip
Velocity
Average speed
Acceleration
Gravity
The baseball park is 4200 m from Camden's house. I took him 30 minutes to get there. What was Camden's speed?
S=d/t
What was Juan's average speed?
S=d/t
0.3 mi/min
3.25 mi/min
4 mi/hr
4 hours
Why do the values on the graph form a straight line?
The speed is constant
The distance remains unchanged.
The direction of motion stays the same.
The speed gradually increases over time.
Which of the following can be inferred from the graph?
The object is experiencing acceleration.
The object is moving along a curved path.
The object has a negative acceleration.
The object moves at a constant speed.
Which graph BEST represents the motion of an object that was initially at rest and is accelerating uniformly?
Which table correctly describes the object's motion during each interval of time?
Which graph correctly shows the distance and time traveled by the race car?
The diagram shows 2 boxes with forces being applied to them. In the diagram, force (F) is shown in newtons (N), acceleration (a) is shown in meters/second2 (m/s2), and the mass is shown in grams (g).
Which statement is supported by the diagram?
As the mass of an object increases, the force required for it accelerate decreases.
As the mass of an object decreases, the force required for to accelerate increases.
Heavier objects require more force than lighter objects to accelerate at the same rate.
Heavier objects require less force than lighter objects to accelerate at the same rate.
A student is investigating acceleration using balls with different masses. The student pushes each ball on a flat surface and records its acceleration. The table shows his observations.
Which claim can the student make using his observations?
A ball with a mass of 5 kg will have an acceleration that is less than 3.3 m/s2 when pushed with a force of 50 N.
A ball with a mass of 5 kg will have an acceleration that is greater than 3.3 m/s2 because mass is inversely proportional to acceleration.
A ball with a mass of 10 kg will have an acceleration that is greater than 2.5 m/s2 when pushed with a force of 50 N.
The 20 kg ball has an acceleration of 2.5 m/s2, so a ball with a lower mass will have a greater acceleration because mass is inversely proportional to acceleration.
A ball with a mass of 25 kg will have an acceleration that is less than 1.7 m/s2 when pushed with a force of 50 N.
The 30 kg ball has an acceleration of 1.7 m/s2, so a ball that has a lower mass will have a greater acceleration because mass is inversely proportional to acceleration.
A ball with a mass of 40 kg will have an acceleration that is greater than 1.4 m/s2 when pushed with a force of 50 N.
The ball that is 35 kg has an acceleration of 1.4 m/s2, so a ball with a greater mass will have decreased acceleration because mass is inversely proportional to acceleration.
A student moves four boxes along a frictionless surface. The table shows the student's data.
The student claims that the force required to move each box the same distance is proportional to the mass of each box. Which argument BEST supports the student's claim?
The box with the lowest mass requires the most force to move the same distance.
The box with the highest mass requires the most force to move the same distance.
The box with the lowest acceleration requires the most force to move the same distance.
The box with the highest acceleration requires the most force to move the same distance.
A student is investigating inertia using four boxes of different masses. The student pushes each box across a flat surface with the same amount of force. The student records her observations in the table shown.
The student claims that the mass of the boxes affects inertia. Which argument can the student make using the data in the table?
Box A travels the farthest because it has the most inertia.
Box A has the least amount of inertia because it has the lowest mass.
Box B travels less than Box C because it has more inertia.
Box A has the smallest mass which means that it has less inertia and requires less force to move it.
Box C travels more than Box B because it has more inertia.
Box C has a lower mass than Box B which would cause it to have less inertia.
Box D travels the least because it has the lowest amount of inertia.
Box D has the highest amount of inertia because it has the largest mass.
A student performs two investigations of force and acceleration. In the first investigation, she pushes objects with different masses using the same amount of force. In the second investigation, the student pushes objects with the same masses using different amounts of force. The result of both investigations are shown.
Which claim and argument can the student make using her data?
Claim: With a constant force, the acceleration of the objects is proportional to the mass of the objects. Evidence: The acceleration of the objects increases as the masses of the objects increase.
Investigation 1 provides evidence that the acceleration of the objects decreases, not increases, as the mass of the objects increase. Mass is inversely proportional to the acceleration of objects. Investigation 1 does not show a proportional relationship.
Claim: With a constant force, the acceleration of the objects is proportional to the mass of the objects. Evidence: The acceleration of the objects decreases as the masses of the objects decrease.
Investigation 1 provides evidence that the acceleration of the objects increases as the masses of the objects decrease. Mass is inversely proportional to the acceleration of objects. Investigation 1 does not show a proportional relationship.
Claim: With a constant mass, the amount of force applied to the objects is proportional to their acceleration. Evidence: As the force on the objects increases, the acceleration of the objects increases.
Investigation 2 provides evidence that objects of the same mass have greater acceleration as more force is applied to them. Investigation 2 shows a proportional relationship.
Claim: With a constant mass, the amount of force applied to the objects is proportional to their acceleration. Evidence: As the force on the objects increases, the acceleration of the objects decreases.
Investigation 2 shows that objects have increased, not decreased, acceleration as more force is applied to them.
