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WorksheetsForces and Motion
Total questions: 144
Worksheet time: 4hrs 14mins
Which type of force resists motion?
Friction
Gravity
Pull
Push
How does the mass of an object affect the motion of an object?
The greater the mass the less effect a force will have
The greater the mass the greater the effect a force will have
The less the mass the less effect a force will have
It has no effect
If two toy trucks are pushed with the same force, Which one will move the longest distance?
The one with more mass
The one with less mass
The mass will make no difference
What happens in a game of tug-a-war when both teams pull the rope with equal force and in opposite directions?
The rope does not move
Both teams move to the right
Both teams move to the left
Both teams fall down
What force attracts some metals and it is a noncontact force?
Push
Pull
Magnetism
Friction
A student is pushing a book with a force of 10 Newtons to the left. Another student is pushing the book to the right. How many Newtons of force is the second student pushing with if the book is not moving?
10 Newtons
5 Newtons
0 Newtons
1 Newton
To drag a sofa over carpet, movers sometimes use slippery pads. Which force is reduced with the use of the pads?
Friction
Gravity
Push
Magnetism
A baseball pitcher throws a baseball. It does not reach the catcher. What should the pitcher do to make a ball reach the catcher?
Increase the force used when throwing the ball
Decrease the force used when throwing the ball
Reduce the gravity exerted on the ball
Increase the gravity exerted on the ball
Why does a newly oiled machine work faster than a machine that hasn't been oiled?
Oil reduces the friction between the parts
Oil increases the friction between the parts
Gravity acts more on an old machine
Gravity acts more on a new machine
What should you do to make a toy car roll faster down a ramp?
Push it with more force
Push it with less force
Remove the force of gravity
Use magnetism to push it down
A runner races in the 100 meter dash. It takes her 10 seconds to finish. What is her average speed?
10 m/s
1000 m/s
100 seconds
10 seconds
30 mph west is an example of _________.
force
speed
acceleration
velocity
A lamp sitting on a table is demonstrating Newton's ___ Law.
1st
2nd
3rd
4th
A rollercoaster heading down a hill is _____________.
at rest
slowing down
accelerating
velocity
Newton's 3rd Law states that for ever action there is an equal and opposite ________.
reaction
satisfaction
fraction
transaction
A ______ is a push or pull on an object.
force
speed
acceleration
velocity
A car traveling 65 mph is an example of its ________.
force
speed
acceleration
velocity
A force that causes an object to slow down when it touches another object is _________.
gravity
friction
inertia
Newton
Newton's 2nd Law says the acceleration of an object depends on its _______ and ______. (Choose two answers)
force or applied force
weight
gravity
mass
A contact force is from
objects physically touching
far apart objects
not touching object
always a pull
Friction is a
Contact Force
Myth
Non-contact Force
A ball rolls down from the top of a grassy hill, reaches the bottom of the hill, continues to roll, and then starts to slow down and comes to a stop. What forces caused this ball's motion?
Frictional force caused the ball to roll down the hill, but air resistance caused the ball to slow down and stop.
Magnetic force caused the ball to roll down the hill, but gravity caused the ball to slow down and stop.
The force of the hill caused the ball to roll down it, but gravity caused the ball to slow down and stop.
Gravity caused the ball to roll down the hill, but frictional force caused the ball to slow down and stop.
without friction, an object in motion would never stop
true
false
these are examples of lubricants
oil,
grease
powder
all of the above
Which type of friction comes into play when a book on cylindrical pencils is moved by pushing?
(a)
Name the device which is attached to heavy luggage (such as a heavy suitcase) to move it easily by pulling.
(a)
Give one example from everyday life where wheels (or rollers) are used to reduce friction.
(a)
Why a bicycle and a motor mechanic use grease between the moving parts of these machines?
(a)
Why are cars, aeroplanes and rockets streamlined?
(a)
What prevents us from slipping every time we take a step forward?
(a)
What are fluids? Name two common fluids.
(a)
Why do gymnasts apply a coarse substance to their hands?
(a)
Why is it difficult to climb up an oily or greasy pole?
(a)
Why do tyres of cars wear out gradually?
(a)
What is static friction?
(a)
What is sliding friction?
(a)
What is rolling friction?
(a)
Why is it difficult to walk on a well-polished floor? What is the first statement of this audio clip?
A well-polished floor offers very less resistance.
Therefore, it is difficult to walk properly on a well-polished floor.
Why is it difficult to walk on a smooth and wet floor?
A smooth and wet floor offers very less resistance.
Therefore, it is difficult to walk properly on a smooth and wet floor.
Why is it difficult to walk on a well-polished floor? What is the second statement of this audio clip?
A well-polished floor offers very less resistance.
Therefore, it is difficult to walk properly on a well-polished floor.
Why is it difficult to walk on a well-polished floor? What is the second statement of this audio clip?
A well-polished floor offers very less resistance.
Therefore, it is difficult to walk properly on a well-polished floor.
Can we reduce friction to zero by polishing surfaces or using large amount of lubricants? What is the first statement of this audio clip?
Friction can never be entirely eliminated.
No surface is perfectly smooth.
Some irregularities are always there.
Can we reduce friction to zero by polishing surfaces or using large amount of lubricants? What is the second statement of this audio clip?
Friction can never be entirely eliminated.
No surface is perfectly smooth.
Some irregularities are always there.
Can we reduce friction to zero by polishing surfaces or using large amount of lubricants? What is the third statement of this audio clip?
Friction can never be entirely eliminated.
No surface is perfectly smooth.
Some irregularities are always there.
Which device is used between the hubs and axles of bicycle wheels to reduce friction?
(a)
What happens when you rub your hands vigorously for a few seconds? Why does this happen? What is the first statement of this audio clip?
If we rub our hands together for several seconds, then our hands feel warm.
That warmth is caused by a force called friction.
What happens when you rub your hands vigorously for a few seconds? Why does this happen? What is the second statement of this audio clip?
If we rub our hands together for several seconds, then our hands feel warm.
That warmth is caused by a force called friction.
Explain why sportsmen use shoes with spikes.
(a)
The bumpy pattern on the soles of shoes is called the tread. Melanie and Keisha are at the store looking at the treads on different basketball shoes. They want new shoes so that they do not slide on the basketball court. Which of these situations produces the most friction between the shoes and the floor?
a girl with a less mass wearing shoes with more tread
a girl with a less mass wearing shoes with less tread
a girl with greater mass wearing shoes with more tread
a girl with greater mass wearing shoes with less tread
An astronaut in space might feel weightless, but there still is a gravitational attraction between the astronaut and Earth. Which two factors affect this gravitational attraction?
the masses of Earth and the astronaut
the weight of Earth and the astronaut
the rotation of the Earth
the distance between Earth and the astronaut
David delivers meals to elderly people once a week. He uses a cart to move the meals. The cart has four smooth wheels. Which type of friction acts between the cart wheels and the sidewalk?
sliding friction
rolling friction
fluid friction
static friction
Miguel learned about the difference between mass and weight. He wanted to investigate what he would weigh at different locations in our solar system. He used this table to organize data he found out about Earth, the moon, Neptune, and Mercury. He needs to fill out the rest of the table. How would Miguel's mass on Neptune compare to his mass on Earth?
It is less.
It is greater.
It is the same.
It varies compared to the distance between the planets.
Pam’s family is clearing some land, and there is a large boulder sitting on top of the ground. Even with the entire family pushing on it, they cannot move it. Which type of friction exists between the boulder and the ground?
fluid
rolling
sliding
static
Do you believe that you are pulled towards your science book, a bunch of grapes in your lunch, and your school building because of universal gravitation? Which two statements about universal gravitation are true?
Gravity acts between you and each of these objects because all have mass.
Gravity does not act between objects that are far apart, like you and the sun.
Gravity only pulls things in a downward direction, like toward Earth's surface.
Gravity acts between any two objects in the universe.
Pascal knows that a falling body accelerates at a constant rate, and he also knows that the same is true of a ball rolling down a ramp, as in the figure. The source of the force that accelerates the ball rolling down the ramp is The (a) attraction of Earth accelerates the ball.
Pascal knows that a falling body accelerates at a constant rate, and he also knows that the same is true of a ball rolling down a ramp, as in the figure. The source of the force that accelerates the ball rolling down the ramp is The direction of the force is (a) .
Pascal knows that a falling body accelerates at a constant rate, and he also knows that the same is true of a ball rolling down a ramp, as in the figure. The force that moves the ball is not the only force acting on it. The ramp also exerts an upward force on the ramp, which counters much of the force of (a) .
Pascal knows that a falling body accelerates at a constant rate, and he also knows that the same is true of a ball rolling down a ramp, as in the figure. The force of the ramp is perpendicular to the ramp and to the direction of motion of the ball, so it does no (a) .
Miguel learned about the difference between mass and weight. He wanted to investigate what he would weigh at different locations in our solar system. He used this table to organize data he found out about Earth, the moon, Neptune, and Mercury. He needs to fill out the rest of the table. Use the information in the table to calculate Miguel’s weight, in pounds, on the moon, Neptune, and Mercury. Explain the way you did your work.
Andrew plays trumpet in the concert band. He holds the trumpet still at his side until it is time for him to play. When it is time, he brings the trumpet up to his mouth and starts to play. Which statement correctly connects the motion of the trumpet with Newton’s first law of motion?
A tuba has more mass than a trumpet, so it has greater inertia
The trumpet automatically stops moving without a force acting on it
The trumpet starts moving because a net force overcomes the trumpet's inertia.
Andrew exerts an action force on the trumpet, and the trumpet exerts a reaction force on Andrew.
What is Newton’s First Law of Motion?
A body at rest will stay at rest unless acted upon by a non-zero force.
Force = mass x acceleration
For every action there is an equal and opposite reaction.
Miko is blowing up balloons for her little sister’s birthday party. One of the balloons slips out of her hand before she ties it off, and it shoots through the air until it is empty. Which statement explains what causes the balloon to accelerate?
The air leaving through the balloon's mouth pushes on the air surrounding the balloon, so the balloon experiences a net force.
All air surrounding the balloon pushes the balloon forward.
The mass of the air leaving the balloon is greater than the mass of the balloon, so the balloon moves forward.
When the balloon pushes on the leaving air, the leaving air pushes back on the balloon, so the balloon experiences a net force.
Connor received a new puppy as a birthday gift. The puppy’s food bowl was placed on a mat to keep spilled food off the floor, but every morning the food bowl is sitting across the room. Which statement accounts for this situation?
According to Newton's first law, the bowl has inertia
According to Newton's first law, the dog applied force to the bowl to move it
According to Newton's second law, an action force was applied to the bowl.
According to Newton's third law, the bowl applied a reaction force to the puppy
Teresa did a trick in which she placed dishes on a tablecloth placed on a card table. She pulled quickly on the tablecloth, and it came off the table, leaving the dishes behind on the table.
The inertia of the dishes kept them on the table according to ____________________________
Newton's First Law
Newton's Second Law
Newton's Third Law
Newton's Fourth Law
Arysha enjoys playing lacrosse on the school team. Suppose Arysha throws a lacrosse ball with force of 6 N, and the resulting acceleration is 43 m/s2. What is the mass of the lacrosse ball?
0.14 kg
0.14 m
7.20 kg
258.00 kg
Arysha enjoys playing lacrosse on the school team. Suppose Arysha throws a lacrosse ball with force of 6 N, and the resulting acceleration is 43 m/s2. What is the mass of the lacrosse ball?
0.14 kg
0.14 m
7.20 kg
258.00 kg
Jerome has a tow truck, and he is in charge of moving several vehicles for the city. He wants to explain to his niece how towing vehicles relates to Newton’s second law. Which statement should he use?
The greater the vehicular mass, the less force the tow truck will use
The greater the vehicular mass, the more force the tow truck will use
The vehicular mass has no effect on the amount of force the tow truck uses
The vehicular mass pulls on the tow truck in the opposite direction
Nikhil bought a large plant in a planter for his mother. He took it home and pushed it around his living room until he found a good location for it near the window. After he watered the plant, he was very surprised how difficult it was to push the planter. Based on Newton’s second law, why does it become more difficult to move the planter? Choose the statement that does NOT apply.
With the water, the planter had more mass and more inertia.
Nikhil had to apply more force to produce the same acceleration.
Increased inertia means that less force is needed to move the planter.
If Nikhil used the same amount of force, the acceleration of the moving planter would be less after adding the water.
Teresa did a trick in which she placed dishes on a tablecloth placed on a card table. She pulled quickly on the tablecloth, and it came off the table, leaving the dishes behind on the table.
The tablecloth moved when she applied force, as explained by ____________________________
Newton's First Law
Newton's Second Law
Newton's Third Law
Newton's Fourth Law
Teresa did a trick in which she placed dishes on a tablecloth placed on a card table. She pulled quickly on the tablecloth, and it came off the table, leaving the dishes behind on the table.
When she pulled on the tablecloth with an action force, the tablecloth exerted a reaction force on her, as explained by ____________________________
Newton's First Law
Newton's Second Law
Newton's Third Law
Newton's Fourth Law
A push or pull exerted on an object is:
force
acceleration
velocity
Newton
A point of view on the speed and direction that objects are moving and what reference point they are moving relative to
force
net force
reference frame
inertia
The combination of all forces acting on an object
acceleration
net force
velocity
Newton
Suppose a bulldozer is being hauled at 50 km/h to a construction site on the back of a flatbed truck. From which reference point would the bulldozer not appear to be moving?
the road
a traffic light
the truck driver
a roadside tree
Carmen is helping load furniture and boxes onto a moving truck. She picks up boxes of her things, places them on a cart, and pushes the cart to the moving van. Which term best describes the type of force Carmen uses?
contact
friction
gravity
noncontact
Ahmed saw all of these things as he walked to school this morning. Which one is an example of a force pushing downward toward the ground?
A bird sat on a telephone wire.
A woman moved her child from one place to another in a wagon.
A man pulled weeds in his garden.
A dog tugged on a rope a child held.
Mr. Wang works in a recycling center. Recyclable materials arrive at the center mixed together. Workers use magnets to separate steel cans from other items. Which statements is true about the force between a steel can and a magnet?
Gravity pushes the can toward the magnet.
The force between the can and the magnet is a noncontact force.
The attraction between the can and the magnet is a push.
Ahmed saw all of these things as he walked to school this morning. Which one is an example of a force pushing downward toward the ground?
A bird sat on a telephone wire.
A woman moved her child from one place to another in a wagon.
A man pulled weeds in his garden.
A dog tugged on a rope a child held.
Keisha has two large dogs and a small dog. The dogs like to play tug-the-rope together. Each of these three diagrams shows one way that the dogs play together with the rope. Look at each arrow and the number that goes with it. They show the direction and amount of force each dog exerts on the rope.
Look at the middle diagram, where the large dog and the small dog tug on the rope. Which statement correctly explains the amount and direction of the net force acting on the rope, and which direction the rope will move?
The net force is 8 N to the left, and the rope will move to the right.
The net force is 8 N to the left, and the rope will move to the left.
The net force is 32 N to the left, and the rope will move to the left.
The net force is 32 N to the right, and the rope will move to the right.
Daylon’s family just bought a new puppy, and Daylon decided to take him for a walk. He put the puppy in a wagon and pulled the wagon along the sidewalk. From which of these reference points does the puppy appear to be moving?
Daylon
the wagon
the sidewalk
the puppy's collar
Two school classes are playing tug-of-war with a rope. One class pulls on the rope with a 75 N force to the left, the other pulls with a 40 N force to the right. Which two statements describe this situation?
The forces are balanced, and the rope does not move.
The net force on the rope is 115 N to the right.
The net force on the rope is 35 N to the left.
A
B
C
D
Keisha has two large dogs and a small dog. The dogs like to play tug-the-rope together. Each of these three diagrams shows one way that the dogs play together with the rope. Look at each arrow and the number that goes with it. They show the direction and amount of force each dog exerts on the rope.
Explain whether the forces shown in each diagram are balanced or unbalanced. Use math-based evidence to support your claim for each diagram.
Vivian went on a bicycle trip through Germany with her family. One afternoon, she rode her bicycle along a long flat road at a constant speed for 24 kilometers (km). The ride took her 1.2 hours (h). At what speed did she ride her bicycle?
0.05 h/km
20 mi/h
20 km/h
28.8 m*h
An antelope is being chased across the savannah by a hungry lion. The lion runs at a constant speed. How might the antelope use its velocity to escape the lion? Choose the three statements that apply.
It can run at the same speed but change direction.
It can run in the same direction but increase its speed.
It can both increase speed and change direction.
It can decrease speed but continue running in the same direction.
Anna hits a golf ball, and it soars through the air toward the green. It travels in an arc across the ground. Which statement does not describe the ball’s acceleration before it stops?
It increases speed.
It decreases speed.
It changes its overall direction.
It moves in the same direction.
Carlos likes to bowl. He timed how long it took for his ball to travel the length of an 18-m lane in the bowling alley. He plotted the final distance and time on a line graph. Carlos drew a line from this point to the origin of the graph. How far down the lane was the ball after two s?
6 m
9 m
12 m
18 m
Carlos likes to bowl. He timed how long it took for his ball to travel the length of an 18-m lane in the bowling alley. He plotted the final distance and time on a line graph. Carlos drew a line from this point to the origin of the graph. Use the graph to find the average speed of the ball as it moves down the lane.
(a)
Nicki rides her bike at a constant speed for 6 km. That part of her ride takes her 1 h. She then rides her bike at a constant speed for another 9 km. That part of her trip takes her 2 h. What is her average speed?
3.00 km/h
5.00 km/h
5.25 km/h
7.50 km/h
Choose the word that correctly complete the paragraph.
Susan ran the 400-m sprint at the track meet, and her final time was 65 s. She reported that her velocity in the race was 6.15 m/s. Susan’s statement was an inaccurate report of velocity because she mentioned only (a) .
Choose the word that correctly complete the paragraph.
Susan ran the 400-m sprint at the track meet, and her final time was 65 s. She reported that her velocity in the race was 6.15 m/s. Susan’s statement was an inaccurate report of velocity because she mentioned only speed. She did not include (a) , , which is also a part of velocity.
Georgia loves to drop water balloons from her third-floor balcony into a dumpster located on the street below. Her brother filmed one balloon falling. He measured the height of the balcony rail. Then he used the video camera’s time feature to figure out how far the balloon had traveled from Georgia’s hand after each quarter of a second. He listed the times and distances in a table. Use the table to calculate the average speed.
7.3 mph
7.3 m/s
0.14 km/h
0.14 m/s
