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WorksheetsUnit 2 Exp. 1 Types of Forces
Total questions: 48
Worksheet time: 37mins
A push or a pull on an object is a
force
energy
motion
mass
A type of force that is in direct contact with each other such as friction, applied force, and normal force is called a
contact force
noncontact force
magnetic force
normal force
Which type of force does not require objects to be in direct contact?
A) Contact force
B) Non-contact force
_________________ is a contact force between two surfaces when they push or rub against each other. It is parallel to the surfaces and opposes their motion.
Friction
Gravity
Magnetism
Normal force
Order the different surfaces from greatest friction(3) to least friction (1); Gravel, wood, ice.
gravel surface = 3, wooden floor = 2, ice = 1
gravel surface = 1, wooden floor = 2, ice = 3
gravel surface = 2, wooden floor = 3, ice = 1
gravel surface = 1, wooden floor = 3, ice = 2
What is gravity?
A) A contact force that pushes objects apart
B) A non-contact force that pulls objects with mass toward each other
C) A force that only affects planets
D) A force that increases with distance
Gravitational force is affected by the ______ of the objects and the distance between them.
mass
color
shape
temperature
The greater an object's mass, the greater the gravitational force between it and other objects.
True
False
Gravitational force ______ as the distance between two objects increases.
increases
decreases
stays the same
disappears
A force exerted by some metals materials that attracts or repels objects. It is a non-contact force.
Magnetic
Gravity
normal
applied
What does the term 'magnitude' refer to in the context of magnetism? The magnitude, or ______, of magnetic force decreases as the distance between the objects increases.
strength
direction
color
temperature
Look at the diagrams of the magnets. Which of the following pairs of magnets will attract each other? Choose the correct option.
A) S-N and S-N
B) S-N and N-S
C) N-S and N-S
As the distance between two magnetic objects increases, what happens to the magnitude of the magnetic force?
It increases
It decreases
It stays the same
Which pair of magnets will repel each other with the greatest amount of magnetic force?
1
2
3
4
Which pair of magnets will attract each other with the least amount of magnetic force?
1
2
3
4
An ____________force is a force applied to an object by another object, such as pushing or pulling a door.
applied
normal
direct
noncontact force
A normal force is any force that is applied ________ to a surface.
perpendicularly
parallel
diagonally
horizontally
Identify the type of force: When my dog sleeps on the floor, she exerts a ________ on the floor.
normal force
gravitational force
frictional force
tension force
Identify the type of force: When I push open the door, I exert a ________ on the door.
applied force
gravitational force
frictional force
magnetic force
Identify the force: I have a lamp on a table next to my bed. The lamp exerts a ________ on the table.
normal force
gravitational force
frictional force
tension force
Select the arrow that indicates gravitational force.
As the distance between objects increases, the force of gravity between them
(a)
stays the same
Fill in the blank: Objects that are closer together have (a) of a gravitational force between them than objects that are further apart
An Orange falls off a tree and lands on the ground. What force caused the orange to fall?
friction
heat
gravity
wind
Why is it harder for the boy in Image B to get down the hill?
Gravity
Friction
Mass
Distance
applied force
Normal force
normal force
applied force
What is Normal Force?
the force that opposes gravity
gravitational force
Magnetic force
The force that keeps objects on top of surfaces instead of letting them sink into the surface is known as:
normal
abnormal
static
inertia
Which force acts perpendicular to the surface of contact and supports the weight of an object?
Frictional force
Gravitational force
Normal force
Tension force
In the picture above, the magnet is pick up iron filings. This is an example of _________.
a noncontact force
a contact force
An example of friction is (a) and (b)
(a) is a force that always resists the relative motion of objects or
surfaces.
A (a) is a push or pull. (b) is an example. It slows objects down so they don't keep moving forever.
A(n) ___________________ is a force applied by a person or object onto another object.
normal force
applied force
electric force
magnetic force
static force
Which of the following is an example of an applied force?
The force of gravity acting on a falling apple.
The force exerted by a person pushing a shopping cart.
The force of friction between a car's tires and the road.
The tension in a rope holding a swing.
A force that requires two pieces of matter to touch is a (a)
Are the forces acting on the object balanced or unbalanced? The man does a flip on the fly board.
(a)
The table provides definitions for four kinds of forces. Which option matches each force with its correct position in the table?
1: Gravity; 2: Friction; 3: Applied Forces; 4: Magnetism
1: Magnetism; 2: Gravity; 3: Applied Forces; 4: Friction
1: Gravity; 2: Friction; 3: Magnetism; 4: Applied Forces
1: Applied Forces; 2: Friction; 3: Gravity; 4: Magnetism
Which of the following correctly identifies and explains how each force (FA, FB, FC, and FD) acts on the textbook as shown by the arrows?
FA is gravity pulling the textbook down, FB is the normal force pushing up, FC is friction opposing motion, and FD is an applied force moving the textbook.
FA is friction, FB is gravity, FC is the normal force, and FD is air resistance.
FA is the normal force, FB is friction, FC is gravity, and FD is tension.
FA is air resistance, FB is tension, FC is gravity, and FD is friction.
The magnetic force between three bar magnets placed in a straight line can make them move by attracting or repelling each other. Which variable can change the strength of this force?
The distance between the magnets
The color of the magnets
The shape of the magnets
The material of the table
Which of the following best identifies and describes the force shown?
The apple is being pulled toward the ground by gravity due to the strong gravitational force of Earth.
The apple fell from the tree and toward the ground due to friction of the wind pushing past the apple.
The apple is being pulled toward Earth due to the strong magnetic pull of Earth.
The apple is being pushed toward Earth due to applied forces once it breaks free from the branch.
A metal paper clip lying still on a desk is acted on by multiple forces. When a magnet is brought close to the paper clip, it moves toward the magnet.
Friction between the desk and paper clip causes it to stay still before the magnet acts upon it.
Magnetic force between the paper clip and magnet causes the paper clip to be pulled toward the magnet without the need for contact.
Normal contact force between the desk and paper clip before the paper clip is acted on by the magnet.
Gravitational force pulls the paper clip down toward the Earth as it rests on the desk due to its great mass.
Choose all the examples that demonstrate the force of friction.
A. A bike rolling down a hill
B. Rubbing hands together to keep warm
C. Air rushing over and around a car as it drives down the road
D. A pot resting on a silicone pad to absorb heat from cooking
Free-body diagrams show all forces acting on an object in a certain scenario. In this diagram, a student is pushing a textbook across a desk from left to right. Identify and explain how each force acts on the textbook, as noted by the arrows labeled FA, FB, FC, and FD.
Three bar magnets, each with opposing poles, are placed near each other in a straight line. Explain how the magnetic force between the magnets could make them move. What variables can change the strength of this force?
