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WorksheetsForces
Total questions: 79
Worksheet time: 1hrs 14mins
Name
Class
Date
1.
What is the net force?
a)
40 N left
b)
0 N Balalnced
c)
400 N right
d)
40 N right
2.
How will this object move?
a)
It won't move.
b)
It will move to the right.
c)
It will move to the left.
d)
It will move in both directions.
3.
What is the net force?
a)
30 N left
b)
25 N right
c)
5 N left
d)
55 N right
4.
Which could be an example of an unbalanced force?
a)
A plate sitting on a dining table
b)
A ball at the top of a hill that is not moving
c)
Earth orbiting the Sun
d)
A baseball that has been thrown to home plate.
5.
You and your dad are moving the couch from one side to another. Your dad pushes with a force of 35 N to the right and you push with a force of 25 N right. What is the net force on the couch?
a)
60 N right
b)
10 N left
c)
60 n right
d)
50 N left
6.
What is the net force?
a)
400 N Up
b)
400 N Down
c)
- 400 N Down
d)
800 N Down
7.
Forces that have a net force of zero ( the object is still).
a)
Balanced force
b)
Unbalanced force
8.
The sum of all forces acting on an object and direction
a)
Contact Force
b)
Balanced Force
c)
Unbalanced Force
d)
Net Force
9.
8 N to the left , and 4 N to the right. Find the net force. Is this balanced
a)
12 N Right No
b)
4 N Left No
c)
12 N Right Yes
d)
4 N Left Yes
10.
(T or F?) A balanced force is only an object that is not moving.
a)
True
b)
False
11.
Balanced or Unbalanced?
a)
Balanced
b)
Unbalanced
12.
Are forces balanced or unbalanced when a car is moving at a constant speed in a straight line?
a)
Balanced
b)
Unbalanced
13.
Are forces balanced or unbalanced when a marble rolls down a ramp?
a)
Balanced
b)
Unbalanced
14.
Are forces balanced or unbalanced when skateboarding down a ramp?
a)
Balanced
b)
Unbalanced
15.
What is the unit to MEASURE force?
a)
Kilogram
b)
Meter
c)
Pascal
d)
Newton
16.
A ____________ is a push or a pull on an object.
a)
friction
b)
force
c)
magnet
d)
gravity
17.
If these teams are pulling with the same amount of force what will happen?
a)
The boy in blue will win.
b)
They will not move at all.
c)
The boy in red will win.
d)
Both will fall down.
18.
A push or pull that causes a change in motion
a)
Friction
b)
Gravity
c)
Force
d)
Mass
19.
Examples of forces that make something move are...
a)
pushes
b)
pulls
c)
both pushes and pulls
20.
Which of the following is considered a contact force?
a)
bird to ground
b)
a force between two magnets
c)
airplane to ground
d)
friction between an object and air
21.
What is the tendency of an object to resist a change in its motion?
a)
Inertia
b)
Push
c)
Pull
d)
Gravity
22.
Which of the following is a force that acts at a distance?
a)
a book that rests on a desk
b)
a basketball being passed to a teammate
c)
an airplace experiencing turbulance as it moves thru the air
d)
a magnet pushed away with brought near another magnet
23.
Why is the magnetic force considered to be an action-at-a distance force?
a)
They can be near one another to exert a force.
b)
They push each other apart.
c)
They don't have to touch one another to exert a force.
d)
The smaller they are, the less force they have.
24.
What kind of force is friction?
a)
noncontact
b)
contact
c)
gravity
d)
push and pull
25.
A football player kicks the ball. Why don't the forces of the foot and the ball cancel each other out?
a)
The ball moves before the forces can cancel out.
b)
The force on the ball is greater than the force on the foot.
c)
The forces become unbalanced due to gravity.
d)
The forces are not balanced.
26.
Someone is pushing a box on the floor. What forces are acting on the box?
a)
Friction from the floor.
b)
Gravity pushing down on the box.
c)
The floor pushing up on the box.
d)
All of the above
27.
What is the action force and the reaction force when you sit down on a chair?
a)
Action=chair Reaction=sitting down
b)
Action=sitting down Reaction=chair
c)
No reaction Action=sitting down and the chair
d)
No action Reaction=sitting down and the chair
28.
This type of force is when one object pushes or pulls on another object by touching it
a)
contact
b)
gravity
c)
friciton
29.
This type of force is an attraction between two objects
a)
contact
b)
gravity
c)
friction
30.
This type of force resist motion between two surfaces that are pressed together
a)
contact
b)
gravity
c)
friction
31.
If the net force is equal to zero, the forces acting on the object are
a)
balanced
b)
unbalanced
32.
Balanced forces do not change the objects speed or
a)
direction
b)
distance
c)
time
d)
mass
33.
The unit of force is
a)
m/s
b)
m/s^2
c)
newton
d)
kg
34.
What force holds the planets in motion around the sun?
a)
Magnetic
b)
Electrical
c)
Gravitational
d)
Air Resistance
35.
What is a force that works AGAINST MOTION?
a)
Force
b)
Motion
c)
Gravity
d)
Friction
36.
How is gravity affected by mass?
a)
the larger the mass of the object, the greater the gravity
b)
small objects have no gravity
c)
gravity is not affected by mass of objects, whether large or small
37.
Which force produces a change in motion?
a)
unbalanced force
b)
balanced force
c)
gravitational force
d)
frictional force
38.
When an unbalanced force acts on an object, the force...
a)
Changes the motion of the object
b)
Is canceled by another force
c)
Does not change the motion of the object
d)
Is equal to the weight of the object
39.
_______ is a force that acts between two objects which are touching. This force slows any movement between the two objects.
a)
pressure
b)
magnetism
c)
friction
40.
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
41.
Wheels on a skateboard most likely experiences-
a)
Rolling Friction
b)
Sliding Friction
c)
Fluid Friction
d)
Static Friction
42.
Sally experiences-
a)
Rolling Friction
b)
Sliding Friction
c)
Fluid Friction
d)
Static Friction
43.
Wheels of a shopping cart experience-
a)
Rolling Friction
b)
Sliding Friction
c)
Fluid Friction
d)
Static Friction
44.
Swimming fish experience-
a)
Rolling Friction
b)
Sliding Friction
c)
Fluid Friction
d)
Static Friction
45.
Friction is a force that acts in an ___________ direction of movement.
a)
similar
b)
opposite
c)
parallel
d)
west
46.
Which type of friction occurs when an object moves through a liquid or gas?
a)
sliding
b)
fluid
c)
static
d)
rolling
47.
Which type of friction occurs when solid surfaces slide over each other?
a)
rolling
b)
static
c)
sliding
d)
fluid
48.
Objects balanced on Timmy's head experiences-
a)
Rolling Friction
b)
Sliding Friction
c)
Fluid Friction
d)
Static Friction
49.
Which type of friction occurs when an object rolls over or rotates on a surface?
a)
sliding
b)
static
c)
fluid
d)
rolling
50.
Which type of friction occurs when objects are not moving?
a)
static
b)
sliding
c)
fluid
d)
rolling
51.
A type of friction that occurs when air pushes against a moving object causing it to negatively accelerate
a)
surface area
b)
air resistance
c)
descent velocity
d)
gravity
52.
How does friction affect speed?
a)
more friction decreases speed
b)
more friction increases speed
c)
less friction decreases speed
53.
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
54.
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
55.
The amount of friction depends on the weight of the objects pressing together.
a)
True
b)
False
56.
The rougher the surface, the faster an object will travel over the surface.
a)
True
b)
False
57.
When most objects with smooth surfaces rub, there is less friction.
a)
True
b)
False
58.
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
59.
When two surfaces rub, the irregularities of one surface get caught on those of the other surface?
a)
True
b)
False
60.
Sometimes you need less force to push or pull something because the object is
a)
very heavy
b)
very light
c)
huge
d)
stuck to the ground
61.
Sometimes you need more force to push or pull something because the object is
a)
smaller
b)
lighter
c)
tiny
d)
heavier
62.
Boats float on the water because the force of gravity...................them down into the water.
a)
helps
b)
pulls
c)
lifts
d)
stops
63.
The other force we have been learning about in science is
a)
hiking
b)
skiing
c)
running
d)
pulling
64.
One of the forces we have been learning about in science is
a)
eating
b)
sleeping
c)
pushing
d)
writing
65.
When an object is lowered into water, the water is d..................
a)
displaced
b)
dribbling
c)
dead
d)
dropping
66.
What is the force that pulls things down to Earth?
a)
fire
b)
gravity
c)
evaporation
d)
loudness
67.
What is happening in the picture?
a)
Push
b)
Pull
c)
I don't know
68.
What is happening in the picture?
a)
Push
b)
Pull
c)
I don't know
69.
What is happening in the picture?
a)
Push
b)
Pull
c)
I don't know
70.
What is happening in the picture?
a)
Push
b)
Pull
c)
I don't know
71.
What is happening in the picture?
a)
Push
b)
Pull
c)
I don't know
72.
What is happening in the picture?
a)
Push
b)
Pull
c)
I don't know
73.
What is happening in the picture?
a)
Push
b)
Pull
c)
I don't know
74.
What is happening in the picture?
a)
Push
b)
Pull
c)
I don't know
75.
An object will rise up in a fluid if
a)
Gravity and buoyant force equal
b)
Density of object and fluid is equal
c)
the buoyant force is stronger than gravity
d)
if the density of the object is greater than the fluid
76.
An object will sink in a fluid if
a)
gravity is stronger than buoyant force
b)
buoyant force is stronger than gravity
c)
a fluid can be a gas or a liquid
d)
if the object is solid
77.
An example of neutral buoyancy would be
a)
a fish swimming in the ocean
b)
A rowboat
c)
a rock a the bottom of the lake
d)
A scuba diver sitting in a boat
78.
If a boat weighs 500 N. It moves 500 N water when it goes into the ocean. It will
a)
sink
b)
tip over
c)
float
d)
move faster
79.
What happens to a boat when cargo or a person is added?
a)
The draft decreases and the submerged volume increases
b)
The mass increases and the draft decreases
c)
The mass and density decrease and the submerged volume increase
d)
The mass and density increase, the draft increases and the submerged volume increases
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