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WorksheetsMotion and Forces
Total questions: 48
Worksheet time: 38mins
Name
Class
Date
1.
a force that opposes the motion of an object in contact with a surface
a)
motion
b)
force
c)
friction
2.
a change in the velocity of an object over time
a)
acceleration
b)
speed
c)
inertia
3.
If runners are speeding up and changing direction during a race, they are changing their ___________________________________.
a)
acceleration
b)
speed
c)
velocity
4.
If you know the speed and direction of an object, then you also know the _______________________________ of the object.
a)
acceleration
b)
speed
c)
velocity
5.
A push or pull on an object is called _______________________________.
a)
force
b)
motion
c)
position
6.
A change in an objects position is called ____________________________.
a)
motion
b)
speed
c)
friction
7.
Acceleration is the change in _____________________________ over time.
a)
speed
b)
velocity
c)
friction
8.
When you drag a book across a table, you are creating what type of friction?
a)
elastic
b)
compressional
c)
sliding
9.
When net forces are equal in strength and opposite in direction, they are said to be _____________________________.
a)
balanced
b)
unbalanced
c)
equal
10.
Distance divided by time equals _________________________________.
a)
motion
b)
acceleration
c)
speed
11.
What is the unit of measurement for force?
a)
m/s
b)
N, newtons
c)
cm
12.
What causes a car to eventually come to a stop?
a)
acceleration
b)
speed
c)
velocity
13.
When a book is sitting on your desk, what forces are at work?
a)
static
b)
sliding
c)
tension
14.
What number represents balanced forces?
a)
0, zero
b)
7, seven
c)
14, fourteen
15.
How do you calculate forces?
a)
If force if moving towards each other, you subtract the forces. If th
b)
If the forces are moving in the same direction, you add the forces.
c)
Both of these are correct.
16.
a change in an object's position compared to a fixed object
a)
motion
b)
force
c)
friction
17.
a description of a moving object's speed and direction
a)
speed
b)
velocity
c)
acceleration
18.
the location of an object compared with things around it
a)
motion
b)
distance
c)
position
19.
the length between two places
a)
distance
b)
position
c)
speed
20.
Friction is a force that acts in an ___________ direction of movement.
a)
similar
b)
opposite
c)
parallel
d)
west
21.
A type of friction that occurs when air pushes against a moving object causing it to decelerate.
a)
surface area
b)
air resistance
c)
velocity
d)
gravity
22.
Which of the following is an example of friction that is helpful?
a)
Brakes used on a bike
b)
Tires from a car on the road
c)
Tread on the bottom of your shoes
d)
All are examples that are helpful
23.
The amount of friction depends on the weight of the objects pressing together.
a)
True
b)
False
24.
What type of friction is not moving?
a)
static
b)
sliding
c)
fluid
d)
rolling
25.
Which of the following is an example of friction that is harmful?
a)
Pencil marking on paper
b)
Engine parts wearing out
c)
sand placed on ice in the winter
d)
Using an eraser to erase marks
26.
Which would NOT be a way of reducing friction?
a)
making the surfaces smoother
b)
using lubricants such as waxes, oils, or grease
c)
changing from sliding friction to rolling friction using ball bearings
d)
Using kitty litter on snow and ice to help your car gain traction
27.
What does friction produce?
a)
light
b)
sound
c)
heat
d)
gravity
28.
How does friction affect speed?
a)
more friction decreases speed
b)
more friction increases speed
c)
less friction decreases speed
d)
less friction doesn't affect speed
29.
Lilly has a flat piece of paper and a ball of paper. She drops both papers at the same time from the same height. The ball of paper hits the ground first. Which force acts on the flat piece of paper that slows it down?
a)
friction
b)
gravity
c)
inertia
d)
magnetism
30.
Movers slide a box down the ramp of a truck.
What helps slow the box as it slides to the bottom of the ramp?
What helps slow the box as it slides to the bottom of the ramp?
a)
friction
b)
gravity
c)
inertia
d)
magnetism
31.
A man is pushing a ball up a hill. If the man stops pushing the ball and steps out of the way, what will most likely happen to the ball?
a)
It will stop on the hill.
b)
It will roll down the hill.
c)
It will roll to the side toward the man.
d)
It will fly.
32.
How would the absence of friction affect a marble traveling on a long, straight path?
a)
The marble’s speed would decrease.
b)
The marble’s speed would increase.
c)
The marble would stop immediately.
d)
The marble would remain at constant speed.
33.
What causes a ball to move through the air when it is thrown?
a)
heat
b)
force
c)
friction
d)
gravity
34.
Why is it important for basketball players to wear shoes with tread when playing?
a)
to increase the speed of the player
b)
to decrease the force between the player and the floor
c)
to increase friction between the floor and the player’s feet
d)
to decrease the amount of force needed for the player to move
35.
Which best describes the role friction plays in the operation of a car?
a)
Friction makes a car go faster.
b)
Friction keeps a car from stopping.
c)
Friction turns the car in a new direction.
d)
Friction helps a car slow down and stop.
36.
John stands at the top of a steep hill and pushes a ball over the edge with his foot. Which force causes the ball to continue rolling down the hill?
a)
mass
b)
gravity
c)
friction
d)
air resistance
37.
Which would make a car move fastest?
a)
moving up a steep slope
b)
moving up a gradual slope
c)
moving down a steep slope
d)
moving down a gradual slope
38.
Which material should be used on a bicycle ramp to increase friction?
a)
shiny metal
b)
rough paper
c)
smooth wood
d)
wet plastic
39.
A ball is kicked and rolls for a long distance across a field. Which eventually causes the ball to slow and stop?
a)
friction
b)
gravity
c)
motion
d)
position
40.
Which is a force that keeps Earth in orbit around the Sun?
a)
friction
b)
gravity
c)
radiation
d)
magnetism
41.
Four different students take turns pushing a large, heavy ball on the school parking lot. What is the best way to determine which student used the most force to push the ball?
a)
compare the sizes of the students
b)
compare the ages of the students
c)
compare the distances that the ball rolled
d)
compare the number of times the ball was rolled
42.
Pam ran down the sidewalk to school with her empty backpack. After school Pam’s backpack was loaded with books. Which best describes the force required to carry her book bag home?
a)
It took the same amount of force to carry the loaded book bag home.
b)
It took a greater amount of force to carry the loaded book bag home.
c)
It took a lesser amount of force to carry the loaded book bag home.
43.
Matt had a toy truck weighing 15 grams and a toy car weighing 6 grams. Using the same amount of force on each toy, he pushed them both across his desk. The car reached the other side of the desk in 1.5 seconds, but it took the truck 3.5 seconds to reach the the other side of the desk. Why did the car travel the same distance in a shorter amount of time?
a)
The car had less mass and traveled at a faster speed than the truck.
b)
The car had more mass and traveled at a faster speed than the truck.
c)
The truck had more mass and traveled at a faster speed than the car.
44.
Which of the following would increase the motion of a ball after it is kicked?
a)
a flat, grassy surface
b)
a smooth surface sloped uphill
c)
a smooth surface sloped downhill
45.
Two toy race cars are going to be raced down the same ramp. Which information is most helpful in predicting which car will win the race?
a)
length of the ramp
b)
volume of the cars
c)
slope of the ramp
d)
mass of the cars
46.
Why are new tires on a car better than older, worn tires?
a)
New tires have less mass than older tires.
b)
New tires are less affected by gravity than older tires.
c)
New tires allow the car to travel faster than older tires.
d)
New tires provide more friction on the road than older tires.
47.
James and Alex are kicking a ball back and forth. Alex kicks the ball in James’s direction, but the ball stops just before it reaches James. Which most likely caused the ball to stop?
a)
friction
b)
gravity
c)
change in mass of the ball
d)
change in shape of the ball
48.
A person is pushing a lawnmower. Which best describes what is occurring?
a)
Mass is being applied to the lawnmower.
b)
Force is being applied to the lawnmower.
c)
There is no friction acting on the lawnmower.
d)
There is no gravity acting on the lawnmower.
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