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WorksheetsForce, Motion and Friction
Total questions: 64
Worksheet time: 6hrs 10mins
Name
Class
Date
1.
Friction is a force that acts in an ___________ direction of movement.
a)
similar
b)
opposite
c)
parallel
d)
west
2.
Which type of friction occurs when solid surfaces slide over each other?
a)
rolling
b)
static
c)
sliding
d)
fluid
3.
Which type of friction occurs when an object rolls over or rotates on a surface?
a)
sliding
b)
static
c)
fluid
d)
rolling
4.
Which type of friction occurs when objects are not moving?
a)
static
b)
sliding
c)
fluid
d)
rolling
5.
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
6.
How does friction affect speed?
a)
more friction decreases speed
b)
more friction increases speed
c)
less friction decreases speed
7.
How can friction be reduced?
a)
reduce the force acting between the 2 surfaces
b)
reduce the roughness of the 2 surfaces coming in contact
c)
use wax, grease or oil
d)
all of the above are ways of reducing friction
8.
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
9.
The amount of friction depends on the weight of the objects pressing together.
a)
True
b)
False
10.
The rougher the surface, the faster an object will travel over the surface.
a)
True
b)
False
11.
When most objects with smooth surfaces rub, there is less friction.
a)
True
b)
False
12.
What are 2 factors that determine the amount of friction between 2 objects?
a)
Force and roughness between surfaces
b)
hills and valleys and how smooth or rough the surface is
c)
Amount of force and amount of surface the comes in contact
d)
The force and the weight exerted on the surfaces
13.
Examples of friction in my everyday life. (all are correct but you can only have one correct answer so click the teal box)
a)
When I am going on a run and have to stop quickly before crossing a street, I can stop because of the friction between my shoes and the sidewalk
b)
When I am riding my bike and have to stop at a stop sign, it slows because of the friction between the breaks and the wheels
c)
When I mow the lawn, the engine has a lot of moving parts, and they rub on each other
d)
There is friction in my joints
14.
Two factors effecting the magnitude of the force of gravity between 2 objects are...
a)
Mass and Distance
b)
Mass and Matter
c)
Distance and Weight
d)
Weight and Mass
15.
What is the SI unit used to measure weight?
*remember the definition of weight!
*remember the definition of weight!
a)
Grams
b)
Liters
c)
Pounds
d)
Newtons
16.
The force of gravity acting on an object is the object's ______.
a)
Mass
b)
Matter
c)
Weight
d)
Terminal velocity
17.
What is the SI unit used to measure force?
a)
Pounds
b)
Grams
c)
Newtons
d)
kg/ m2
18.
You push on a tree with 20 N of force. If the tree doesn't move, the tree is pushing back on you with _____of force.
a)
20N
b)
40N
c)
10N
d)
70N
19.
What is the force acting between any two objects in the known universe all the time?
a)
Gravitational Force
b)
Force of Friction
c)
Normal Force
d)
Electromagnetic Force
20.
To calculate net force, when forces are acting in the same direction, the forces are ...
a)
added
b)
subtracted
c)
mutiplied
d)
divided
21.
Forces with have a net force of some value and the object's movement is effected.
a)
Balanced Forces
b)
Unbalanced Forces
22.
With unbalanced forces, the object will move in the direction of the _______ force.
a)
larger
b)
smaller
c)
equal
23.
A force is...
a)
a push
b)
a pull
c)
a push or pull
d)
a push or pull with a specific magnitude and direction
24.
Forces that have a net force of zero and the object's movement is not effected.
a)
Balanced Forces
b)
Unbalanced Forces
25.
To calculate net force, when forces are acting in opposite directions, the forces are ...
a)
added
b)
subtracted
c)
multiplied
d)
divided
26.
Does mass differ from weight?
a)
Yes- they are very different!!
b)
No- they can be interchanged
c)
I am not sure- I have more studying to do before Friday!!
27.
Imagine you travel to another planets. What will change as you walk around the surface of the planet- your mass or your weight?
a)
Mass
b)
Weight
c)
Both
d)
Neither
28.
Force the opposes motion between 2 surfaces
a)
force
b)
Newton
c)
friction
d)
net force
29.
What are 2 factors that determine the amount of friction between 2 objects?
a)
Force and roughness between surfaces
b)
hills and valleys and how smooth or rough the surface is
c)
Amount of force and amount of surface the comes in contact
d)
The force and the weight exerted on the surfaces
30.
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
31.
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
32.
How can friction be reduced?
a)
reduce the force acting between the 2 surfaces
b)
reduce the roughness of the 2 surfaces coming in contact
c)
use wax, grease or oil
d)
all of the above are ways of reducing friction
33.
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
34.
What type of friction is not moving?
a)
static
b)
dynamic
c)
kinetic
d)
rolling
35.
What happens to the gravitational force between two objects as they move farther apart?
a)
it increases
b)
it decreases
c)
it remains the same
d)
it fluctuates
36.
Gravity and magnetism are examples of what?
a)
friction
b)
electrical forces
c)
contact forces
d)
noncontact forces
37.
What is the difference between weight and mass?
a)
Weight is the amount of matter in an object, and mass is the gravitational force exerted on an object
b)
Mass is the amount of matter in an object, and weight is the gravitational force exerted on an object
c)
Weight is the amount of matter in an object, and mass is the size of an object.
d)
Weight is the size of an object, and mass is the amount of matter in an object
38.
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
39.
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.
40.
How does friction affect speed?
a)
more friction decreases speed
b)
more friction increases speed
c)
less friction decreases speed
41.
Which of the following would increase the motion of a ball after it is kicked?
a)
a high, grassy surface
b)
a surface sloped uphill
c)
a surface sloped downhill
42.
Which best describes the force of gravity?
a)
a pulling force
b)
a pushing force
c)
a change in mass
d)
a change in speed
43.
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.
44.
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.
45.
Force
a)
A push or pull that causes an object to move, stop, or change direction.
b)
A change in position or location
c)
Where an object is located in space.
d)
A line or course along which something is moving.
46.
Movement
a)
A push or pull that causes an object to move, stop, or change direction.direction.
b)
A change in position or location
c)
Where an object is located in space.
d)
A line or course along which something is moving.
47.
Position
a)
A push or pull that causes an object to move, stop, or change direction.
b)
A change in position or location
c)
Where an object is located in space.
d)
A line or course along which something is moving.
48.
Direction
a)
A push or pull that causes an object to move, stop, or change direction.direction.
b)
A change in position or location
c)
Where an object is located in space.
d)
A line or course along which something is moving.
49.
Gravity
a)
A push or pull that causes an object to move, stop, or change direction.direction.
b)
A change in position or location
c)
The force that causes objects with mass to attract one another.
d)
A line or course along which something is moving.
50.
Friction
a)
A push or pull that causes an object to move, stop, or change direction.direction.
b)
A change in position or location
c)
The force that causes objects with mass to attract one another.
d)
A force that resists the motion of two surfaces sliding across one another.
51.
A push or a pull that can move an object is a __________.
a)
gear
b)
lever
c)
force
d)
machine
52.
The force that opposes the motion of two surfaces sliding past each other is called ___________.
a)
acceleration
b)
inertia
c)
friction
d)
unbalanced
53.
The force resulting from the pull of the earth on an object.
a)
mass
b)
gravity
c)
acceleration
d)
unbalance
54.
When you kick a football, you are applying ________ to the ball.
a)
mass
b)
gravity
c)
force
d)
unbalance
55.
Rubbing your hands together is an example of....
a)
mass
b)
gravity
c)
force
d)
friction
56.
____________ is another word for movement.
a)
mass
b)
gravity
c)
motion
d)
friction
57.
Juan is in the gym and rolls a basketball down the court. He notices that starts off fast but it slows down after a few seconds. What is causing it to slow down?
a)
motion
b)
mass
c)
motion
d)
friction
58.
Jessica's favorite season is fall. She enjoys this season cause the temperatures are much cooler and the leaves start to turn a different color and fall to the ground. What causes the leaves to fall to the ground?
a)
motion
b)
mass
c)
gravity
d)
friction
59.
Where in the universe does gravity act?
a)
nowhere
b)
only on Earth
c)
only between the Sun and planets
d)
everywhere
60.
The variable that will be changed is also known as the...
a)
independent variable
b)
dependent variable
c)
operative variable
61.
The variable that will be measured is known as the
a)
independent variable
b)
dependent variable
c)
operative variable
62.
Dependent Variable
a)
the part of the experiment that changes because of the independent variable, you observe or measure this part to collect data
b)
the part of the experiment controlled or changed by the experimenter
63.
Pushing or pulling an object is known as...
a)
Motion
b)
Force
c)
Friction
d)
Magnetism
64.
__________ is the tendency of an object to resist a change in motion.
a)
inertia
b)
balance
c)
magnetism
d)
particles
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