WorksheetsForces
Total questions: 89
Worksheet time: 1hrs 13mins
Name
Class
Date
1.
How is Earth's magnetic field similar to that of a magnet?
a)
It is hundreds of miles long
b)
It has north and south poles
c)
It is made in Earth's core
d)
It is shaped like a horseshoe
2.
What is our best evidence that Earth has a magnetic field?
a)
All things fall toward Earth's center
b)
A compass needle lines up with it
c)
Winds blow from east to west
d)
Earth's oceans all have currents
3.
Every magnet has a
a)
east and west pole
b)
north and south pole
c)
east and south pole
d)
north and west pole
4.
If two magnets come together what is it called?
a)
Repel
b)
Force
c)
Attract
d)
None of the Above
5.
If 2 magnets push away from each other what is it called?
a)
Attract
b)
Iron
c)
Repel
d)
None of the above
6.
Can the North and North poles attract?
a)
Yes
b)
No
7.
What types of charges repel?
a)
Positive and Positive
b)
Positive and Neutral
c)
Negative and Neutral
d)
Neutral and Neutral
8.
What happens when two north poles of a magnet are placed together?
a)
they repel
b)
they attract
c)
they cancel each other out
d)
the strength of the magnet is doubled
9.
A push or pull that causes a change in motion
a)
Friction
b)
Gravity
c)
Force
d)
Mass
10.
The amount of matter in an object
a)
weight
b)
force
c)
gravity
d)
mass
11.
What pulls a ball back to earth?
a)
Gas
b)
Gravity
c)
Friction
d)
Molecules
12.
When the opposite poles of magnet are near each other they
a)
induced magnetism
b)
repel
c)
move around
d)
attract
13.
What happens when you put space between two magnets?
a)
the space gets bigger
b)
the spacers move
c)
the force of attraction gets weaker
d)
the magnets attract
14.
All metals are attracted to magnets?
a)
true
b)
false
15.
How are electromagnets different from magnets?
a)
magnets can be turned on/off
b)
you can turn an electromagnet on/off
c)
magnets are more powerful
d)
magnets have a North and South pole
16.
Why would the two magnets move together?
a)
There is too much force.
b)
The magnets are not touching.
c)
The magnetic force pushes the trains apart.
d)
The magnetic force will pull the trains together.
17.
A device that uses a free-moving magnetic needle to show direction is a:
a)
lodestone
b)
magnet
c)
compass
d)
magnetic field
18.
What is a force?
a)
A type of energy
b)
The rate at which an object performs work
c)
A push or a pull
d)
An object that makes up matter
19.
What type of force is the woman applying to cart in the illustration below?
a)
An applied force
b)
Friction
c)
A gravitational force
d)
An electric force
20.
What type of force opposes motion, causing moving objects to slow down and/or stop?
a)
An applied force
b)
Friction
c)
Magnetic force
d)
Electric force
21.
The force of friction exerted by a surface depends on:
a)
The color of the surface
b)
The temperature
c)
The smoothness of the surface
d)
The hardness of the surface
22.
Which force is responsible for causing leaves from a tree to fall to Earth's surface?
a)
Magnetic force
b)
Electric force
c)
Gravitational force
d)
Friction
23.
What force keeps the Earth is orbit around the sun?
a)
Friction
b)
Gravity
c)
Earth's Magnetic force
d)
The sun's magnetic force
24.
What do we call the invisible force exerted by magnets?
a)
Magnetic force
b)
Electromagnetic force
c)
Electric force
d)
Applied force
25.
What is the net force?
a)
20 N
b)
0 N
c)
400 N
d)
40 N
26.
What is the unit to MEASURE force?
a)
Kilogram
b)
Meter
c)
Pascal
d)
Newton
27.
What is the net force?
a)
30 N
b)
25 N
c)
5 N
d)
55 N
28.
What is the net force?
a)
10 N
b)
0 N
c)
25 N
d)
1 N
29.
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.
30.
Balanced or unbalanced?
a)
balanced
b)
unbalanced
31.
Forces that have a net force of zero
a)
Balanced force
b)
Unbalanced force
32.
What will cause an object to move?
a)
Applied forces
b)
Balanced forces
c)
Unbalanced forces
33.
Balanced or Unbalanced?
a)
Balanced
b)
Unbalanced
34.
This is an example of what kind of force?
a)
Balanced Force
b)
Pushing Force
c)
Gravity Force
d)
Unbalanced Force
35.
The force that pulls objects towards Earth.
a)
Gravity
b)
Friction
c)
Inertia
d)
Force
36.
Examples of forces that make something move are...
a)
pushes
b)
pulls
c)
both pushes and pulls
37.
What is the net force of an object that is not moving?
a)
0 N
b)
100 N
c)
Upward force
d)
10 N
38.
This is used to MEASURE force:
a)
A balance scale
b)
A digital scale
c)
A spring scale
d)
A mass scale
39.
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 up.
40.
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.
41.
On the Picture the balloon pushes the air right. What is the second force in this interaction pair?
a)
The air pulls the ball left
b)
Gravity pulls the balloon down
c)
The air pushes the balloon left.
d)
The air pulls the balloon right.
42.
In a tug of war the left team pulls with a force of 200N. The right team pulls with a force of 150N.What is the resultant force?
a)
50N to the left.
b)
350N to the left.
c)
350N to the right.
d)
50N to the right.
43.
Which force is so low that it causes the man to slip and fall?
a)
Gravity
b)
Friction
c)
Air Resistance
d)
Motion
44.
How could you make an object increase its speed?
a)
use less force
b)
use more force
c)
use no force
45.
The figures in the image are displaying what kind of force?
a)
Push
b)
Pull
46.
If the person on the left (red arrow) is pulling with 5 Newtons and the person on the right (blue arrow) is pulling with 5 Newtons, what happens with the rope's motion?
a)
The rope moves to the left because of an unbalanced force.
b)
The rope moves to the right because of a balanced force.
c)
The rope moves to the right because of an unbalanced force.
d)
The ropes does not move because it is a balanced force.
47.
What is the net force?
a)
400 N Up
b)
400 N Down
c)
- 400 N Down
d)
800 N Down
48.
Buoyancy is the tendency for objects to float in a fluid. We consider buoyancy the...
a)
Un-gravity force
b)
Anti-gravity force
c)
Gravitational pull
d)
Downwards pull on an object
49.
How could you make plastic sink and steel float?
a)
You can't
b)
Change the shape and therefore surface area
c)
Remove some mass
50.
What is buoyant force?
a)
An upward force exerted by fluids on an object.
b)
An downward force exerted by fluids on an object.
51.
If two objects are made of the same substance and have the same mass, the shape of the object determines whether or not it sinks or floats in a fluid.
a)
True
b)
False
52.
What does buoyant mean?
a)
float
b)
push
c)
flying, yeah!!!!!!
d)
sink
53.
What direction is the buoyant force in?
a)
Downward
b)
Left
c)
Right
d)
Upward
54.
pushes an ice cube to the top of a glass of water
a)
buoyant force
b)
density
c)
a sinking object
d)
compressed air
55.
Which object was more dense?
a)
coke
b)
diet coke
56.
When the clay ball is placed in the water it ________, or pushes aside the water.
a)
displaces
b)
weighs
c)
sinks
d)
prioritizes
57.
If two objects are made of the same substance and have the same mass, the shape of the object determines whether or not it sinks or floats in a fluid.
a)
True
b)
False
58.
Water is the only fluid that can provide buoyancy.
a)
true
b)
false
59.
Friction is a force that acts in an ___________ direction of movement.
a)
similar
b)
opposite
c)
parallel
d)
west
60.
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
61.
How does friction affect speed?
a)
more friction decreases speed
b)
more friction increases speed
c)
less friction decreases speed
62.
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
63.
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
64.
The amount of friction depends on the weight of the objects pressing together.
a)
True
b)
False
65.
The rougher the surface, the faster an object will travel over the surface.
a)
True
b)
False
66.
When most objects with smooth surfaces rub, there is less friction.
a)
True
b)
False
67.
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
68.
What force ultimately slows the roller coaster to a stop?
a)
Applied
b)
Normal
c)
Friction
d)
Magnetic
69.
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
70.
There is more friction between _________ surfaces.
a)
smooth
b)
slippery
c)
hard
d)
rough
71.
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
72.
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
73.
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
74.
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
75.
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.
76.
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
77.
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
78.
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
79.
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.
80.
What force does a parachute use to slow things down before hitting the ground?
a)
Friction
b)
Air resistance
c)
Water resistance
d)
Wind
81.
When two objects rub together, what force do they produce
a)
Gravity
b)
Air resistance
c)
Friction
d)
Water resistance
82.
What force does an aeroplane have to try to overcome so it is not slowed down too much?
a)
Gravity
b)
Air resistance
c)
Water resistance
d)
Friction
83.
What is the force that causes objects to fall to Earth?
a)
Air resistance
b)
Gravity
c)
Water resistance
d)
Pressure
84.
In a normal environment, why does a bowling ball and feather hit the ground at different times when dropped from the same height?
a)
They don't; they hit the ground at the same time.
b)
One is more dense than the other.
c)
One is heavier than the other.
d)
Air resistance
85.
In what direction does air resistance act?
a)
It pushes upward.
b)
It pushes downward.
c)
It is circular.
86.
If a tennis ball, a solid rubber ball, and a solid steel ball were dropped at the same time from the same height, which would hit the ground first? (Assume there is no air resistance.)
a)
a. All would hit at the same time.
b)
b. The solid rubber ball would hit first.
c)
c. The solid steel ball would hit first.
d)
d. The tennis ball would hit first.
87.
Gravity attracts all objects towards one another.
a)
False
b)
True
c)
It depends
88.
A skydiver who has not opened her parachute yet will ___ until air resistance becomes equal to the gravity.
a)
accelerate (speed up)
b)
decelerate (slow down)
89.
This is drag or a force acting opposite to the motion of the object.
a)
air resistance
b)
air weight
c)
air pressure
d)
air mattress
100 %
