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GIU grade 4 forces

Total questions: 130

Worksheet time: 3hrs 55mins

Name
Class
Date
1.

Gravity is a _____ that _____

2 objects towards one another.

a)

thing

reaches

b)

energy

pushes

c)

force

pulls

d)

weight

takes

2.

Which of these has the strongest gravity?

a)

Earth

b)

Moon

c)

Jupiter

d)

Sun

e)

Venus

3.

What two things determine the gravity of an object?

a)

length & height

b)

mass & distance

c)

color & mass

d)

volume & distance

4.

Which model has greater gravitational attraction.

a)

model A

b)

model B

c)

both models have equal gravity

5.

What keeps the planets in orbit around the sun?

a)

gravity

b)

friction

c)

magic

d)

distance

6.

When will the gravity between two objects be the LEAST?

a)

when the masses of both objects is small and the objects are close together

b)

when the masses of both objects is small and the objects are far apart

c)

when the masses of both objects is large and the objects are close together

d)

when the masses of both objects is large and the objects are far apart

7.
As distance between objects increases the pull of gravity...
a)
increases 
b)
decreases 
c)
Stays the same 
8.

An example of a gravity is that the Earth... 

a)
orbits the sun
b)
orbits the moon
c)
orbits other planets 
d)

none of the above 

9.

The planet Mars has less gravity than Earth. This is because Mars has ___________ mass than the planet Earth.

a)

less

b)

more

c)

the same

10.
A person would weigh more on Jupiter than on the Earth because . . .
a)
Jupiter has more mass, and therefore more gravity
b)
Jupiter has less mass, and therefore more gravity
c)
Jupiter has more mass, and therefore less gravity
d)
Jupiter has less mass and therefore less gravity
11.

If I drop a large rock and a small rock from the same height at the same time, which one will hit the ground first?

a)

the large rock

b)

the small rock

c)

both will hit at the same time

12.

When you drop a bowling ball and a feather, why does the feather fall slower?

a)

air resistance causes the feather to fall slower

b)

gravity pulls harder on the bowling ball than the feather

c)

gravity pulls harder on the feather than the bowling ball

d)

air resistance causes the bowling to fall slower

13.

The first person to study gravity was an English scientist named __________.

a)

Einstein

b)

Fig Newton

c)

Isaac Newton

d)

Chris P. Bacon

14.

If you traveled to the moon you would __________.

a)

weigh more than you did on Earth

b)

weigh less than you did on Earth

c)

weigh the same as you did on Earth

d)

be killed by aliens

15.

Life on Earth would be impossible without gravity.

a)

true

b)

false

16.
The law of universal gravitation is credited to whom? 
a)
Einstein 
b)
Galileo
c)
Darwin
d)
Newton 
17.
Two factors effecting the magnitude of force of gravity between 2 objects are...
a)
weight and mass 
b)
distance and weight 
c)
mass and matter 
d)
mass and distance 
18.
Gravity attracts all objects towards one another. 
a)
True
b)
False 
19.
Look at the picture.  Is the force of gravity on the boy a push or a pull? 
a)
Pull
b)
Push
20.
An object with mass has gravity.
a)
True
b)
False 
21.
As distance between objects increases the pull of gravity...
a)
increases 
b)
decreases 
c)
Stays the same 
22.
The amount of matter in an object.
a)
force 
b)
mass
c)
weight 
d)
pressure 
23.
Which of the following never changes no matter where you are in the universe? 
a)
Pounds 
b)
weight 
c)
Force
d)
Mass
24.
A person would weigh less on the moon than on the Earth because...
a)
the moon has less mass, and therefore less gravity
b)
the moon has more mass, and therefore less gravity
c)
the moon has less mass, and therefore more gravity
d)
the moon has more mass, and therefor more gravity
25.
The relationship between the mass of objects and its weight on Earth is constant. 
a)
True
b)
False 
26.
An example of a gravitational interaction is that the Earth... 
a)
orbits the sun
b)
orbits the moon
c)
orbits other planets 
d)
None of the above 
27.
A person weights _______ on the moon than they do on Earth.
a)
the same
b)
more
c)
less
28.
A person would weigh more on Jupiter than on the Earth because---
a)
Jupiter has less mass, and therefore less gravity
b)
Jupiter has more mass, and therefore less gravity.
c)
Jupiter has less mass, and therefore more gravity.
d)
Jupiter has more mass, and therefore more gravity
29.
If a person weights 100 pounds on Earth, calculate how much that person would weight on Jupiter. (Jupiter has 3 times the amount of gravity than Earth does)
a)
100 pounds 
b)
300 pounds 
c)
33.3 pounds 
d)
Not enough information is given
30.
__________holds all of the planets in orbit around the sun.
a)
Force
b)
Motion
c)
Weight
d)
Gravity
31.
Gravity on Mar's surface is much lower than it is here on Earth. This is because the mass is __________than Earth.
a)
less
b)
more
c)
the same 
32.
Friction is a force that acts in an ___________ direction of movement.
a)
similar
b)
opposite
c)
parallel
d)
west
33.
The amount of friction depends on the weight of the objects pressing together.
a)
True
b)
False
34.
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
35.
Rougher surfaces have ...
a)
greater friction
b)
less friction
c)
the same level of friction
36.
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
37.
The rougher the surface, the faster an object will travel over the surface.
a)
True
b)
False
38.
When most objects with smooth surfaces rub, there is less friction.
a)
True
b)
False
39.
Force the opposes motion between 2 surfaces
a)
force
b)
Newton
c)
friction
d)
net force
40.

Smooth surfaces such as ice, usually produce less friction.

a)

true

b)

false

41.

People use rough or sticky things to decrease friction.

a)

true

b)

false

42.

Kicking a ball is an example of

a)

Gravity

b)

Friction

c)

Push

d)

Force

43.

A push or a pull

a)

Gravity

b)

Force

c)

Friction

d)

Pull

44.

A force that slows or stops motion when objects rub together

a)

Push or pull

b)

Magnetism

c)

Force

d)

Friction

45.

________ pulls to the center of the earth

a)

Magnetism

b)

Force

c)

Friction

d)

Gravity

46.

Opposite poles attract, like poles repel

a)

Friction

b)

Magnetism

c)

Gravity

d)

Force

47.

Rolling a ball over rough grass is an example of

a)

force

b)

friction

c)

magnetism

d)

gravity

48.

An apple falling out of a tree is an example of

a)

gravity

b)

friction

c)

magnetism

d)

force

49.

What sticks to steel, iron, nickel, and cobalt?

a)

Push

b)

Magnet

c)

Pull

d)

friction

50.

Dragging a wagon behind you is an example of

a)

Push

b)

Pull

c)

Friction

d)

Magnetism

51.

Driving a tractor into dirt is an example of

a)

Pull

b)

Friction

c)

Gravity

d)

Push

52.

Why is it harder for the boy in image B to roll down the hill?

a)

motion

b)

friction

c)

work

d)

energy

53.

Any push or pull that causes an object to move, stop or change speed or direction

a)

motion

b)

push

c)

speed

d)

force

54.

A push can be used to do all of the following except

a)

open a door

b)

lift a book

c)

move a wagon

d)

throw a ball

55.

what force is illustrated in this picture?

a)

push

b)

gravity

c)

pull

d)

friction

56.

The force that pulls objects toward the center of the earth is called what?

a)

force

b)

friction

c)

gravity

d)

motion

57.

_____ happens when two items rub against each other

a)

push

b)

gravity

c)

friction

d)

motion

58.

Why does a rolling ball stop?

a)

gravity

b)

friction

c)

waterfalls

d)

sand

59.

What pulls a ball back to earth?

a)

friction

b)

gravity

c)

motion

d)

force

60.

This is an example of what type of force?

a)

push

b)

pull

c)

friction

d)

magnetism

61.

What type of force is this man using to move his grocery cart forward?

a)

pull

b)

push

62.

What will happen?

a)

The car will slow down

b)

The car will speed up

63.

Who wins the tug of war?

a)

The person on the left will win

b)

The people on the right will win

64.

What is the unit used when measuring force?

a)

Kilogram

b)

Meter

c)

Pounds

d)

Newton

65.

A ____________ is a push or a pull on an object.

a)

friction

b)

force

c)

magnet

d)

gravity

66.

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.
67.
Balanced or unbalanced?
a)
balanced
b)
unbalanced
68.
What will cause an object to move?
a)
Applied forces
b)
Balanced forces
c)
Unbalanced forces
69.

Which direction will the box move? 

a)

To the left

b)

To the right

70.
What is a Force?
a)
The distance
b)
Mass
c)
A push or pull
d)
Give me a  failing grade 
71.
What force holds the planets in motion around the sun?
a)
Magnetic
b)
Electrical
c)
Gravitational
d)
Air Resistance
72.

This type of force between 2 surfaces rubbing on each other is _________.

a)

magnetism

b)
gravity
c)
friction
73.

Damon was testing the amount of time leaves take to fall to the ground after being tossed up into the air. What force made the leaves fall to the ground?

a)

Seasons

b)

Friction

c)

Magnetism

d)

Gravity

74.

How could you reduce the friction on the floor?

a)

Add dirt

b)

Put carpet down

c)

Pour water on it

d)

Don’t sweep

75.

Sarah and Sara were tossing the softball back and forth. Which 2 forces act on the softball when Sara missed catching it?

a)

Magnetism and friction

b)

Gravity and friction

c)

Friction and air

d)

Friction and grass

76.

An icy sidewalk will have ______ friction.

a)

More

b)

Less

77.

the tendency of an object to resist a change in its motion

a)

weight

b)

inertia

c)

mass

d)

gravity

78.

A force which tries to pull two objects towards each other is

a)

gravity

b)

inertia

c)

mass

d)

speed

79.

Gravity is based on an object's

a)

mass

b)

size

c)

roundness

d)

brightness

80.

What keeps the planets in orbit around the sun?

a)

gravity and inertia together

b)

gravity

c)

inertia

d)

neither gravity or inertia

81.

What would happen to Earth if there were no inertia?

a)

Earth would crash into the sun

b)

Earth would fly out to space

c)

Earth would collapse

d)

Earth would orbit the moon

82.

What would happen to Earth if there were no gravity?

a)

Earth would crash into the sun

b)

Earth would fly out to space

c)

Earth would collapse

d)

Earth would orbit the moon

83.
Because of inertia, a moving object will keep ________.
a)
at rest
b)
moving
c)
in one spot
d)
inertia 
84.
To change the motion of an object, inertia must be overcome by a __________ acting on the object.
a)
temperature
b)
speed
c)
force
d)
velocity
85.
Because of inertia, a resting object will remain at ________.
a)
rest
b)
a constant speed
c)
school
d)
inertia 
86.
Which of the following will not change in different gravitational fields?
a)
wieght
b)
force
c)
mass
d)
pounds
87.

Look at the image: Which model has greater gravitational attraction (if any)

a)

Model A

b)

Model B

c)

Both Model A and Model B (same gravity)

88.
Which of the following will change with different gravitational forces?
a)
mass
b)
amount of matter in an object
c)
weight
d)
kilograms
89.

What two forces affect the gravitational pull between two objects?

a)

mass and inertia

b)

mass and distance

c)

mass and force

d)

mass and weight

90.
Gravity on the moon is about 1/6 the gravity felt on the earth. This is because
a)
the moon is much less massive than the earth
b)
the earth has a molten core and the moon doesn't
c)
the moon is so much further from the sun than the earth.
d)
the moon is so far away from the earth
91.
An astronaut's mass ______ in space.
a)
changes
b)
increases
c)
decreases
d)
stays the same
92.

 
Which force in the Solar System is similar to the tension in the string?
a)
Friction
b)
Inertia
c)
Force
d)
Gravity
93.

Which would create the strongest gravity?

a)

Two large planets close together

b)

Two large planets far apart

c)

A large planet and a small planet close together

d)

A large and small planet far apart

94.

Holds the Earth and other planets in orbit around the Sun.

a)

The Sun's gravitational force

b)

The moon's gravitational force

c)

The Earth's gravitational force

d)

The lack of gravitational force

95.

You travel to the Moon. Which of the following is true? (choose ALL that are true)

a)

Your mass stays the same

b)

Your weight stays the same

c)

Your mass is different

d)

Your weight is different

96.

When you travel to a planet, like Jupiter, where the force of gravity is greater than on Earth, _____

a)

You will "weigh more" than on Earth

b)

You will "weigh less" than on Earth

c)

You will have "less mass" than on Earth

d)

You will have "more mass" than on Earth

97.
Why do all of the planets orbit the sun rather than Earth?
a)
the sun has more mass
b)
the sun is a star
c)
the Earth is heavier
d)
the sun is in the middle of the milky way
98.

When Sean was riding his bike and braked suddenly, he kept moving forward due to

a)

gravity

b)

friction

c)

inertia

d)

weight

99.
a force that opposes motion between any surfaces that are touching
a)
velocity
b)
friction
c)
inertia
d)
position
100.
the tendency of an object to resist a change in its motion
a)
acceleration
b)
inertia
c)
mass
d)
frame of reference
101.
push or pull acting on an object
a)
speed
b)
force
c)
position
d)
mass
102.
True of False?
An object's inertia is effected by its mass.
a)
False
b)
True
103.
What is the tendency of an object to resist a change in motion?
a)
coffee
b)
motion
c)
inertia
d)
gravity
104.
If you increase the force on an object, its acceleration
a)
decreases
b)
stays the same
c)
also increases
d)
stops
105.
If you increase the mass on an object, its acceleration
a)
decreases
b)
stays the same
c)
also increases
d)
stops
106.
push or pull acting on an object
a)
speed
b)
force
c)
position
d)
mass
107.
Objects with greater _________ also have greater inertia.
a)
speed
b)
mass
c)
temperature
d)
friction
108.
What is the unit of measurement for force?
a)
AMP
b)
Seconds
c)
Newtons
d)
Miles
109.
Newton's 1st law is also called....
a)
friction 
b)
inertia
c)
unbalanced forces
d)
Newtons
110.
Because of inertia, a moving object will keep ________.
a)
at rest
b)
moving
c)
in one spot
d)
inertia 
111.
Measure of how fast an object is going.
a)
frame of reference
b)
speed
c)
force
d)
displacement
112.
An objects location, x is used to represent this.
a)
force
b)
position
c)
distance
d)
acceleration
113.
the amount of matter in an object
a)
displacement
b)
mass
c)
friction
d)
friction
114.
how fast an object is going
a)
frame of reference
b)
speed
c)
force
d)
displacement
115.
You push on a car and it does not move.  What is true about the inertia?
a)
The inertia is changing
b)
The inertia of the car is too great 
c)
The inertia of the person is equal to the car
d)
There is not inertia because of no movement
116.
The law of inertia (Newton’s First Law) applies
a)
to both moving and nonmoving objects
b)
only to moving objects
c)
only to objects that are not moving
117.

What is this simple machine?

a)

Wedge

b)

Inclined plane

c)

Lever

d)

Screw

118.

What is this simple machine?

a)

Wedge

b)

Inclined plane

c)

Lever

d)

Screw

119.

What is this simple machine

a)

Wedge

b)

Inclined plane

c)

Lever

d)

Screw

120.

What is this simple machine?

a)

Wedge

b)

Inclined plane

c)

Lever

d)

Screw

121.

What is this simple machine?

a)

Pulley

b)

Wheel and axle

c)

Lever

d)

Screw

122.

What is this simple machine

a)

Pulley

b)

Wheel and axle

c)

Lever

d)

Screw

123.

This simple machine ______________

a)

cuts

b)

holds things together

c)

moves heavy objects

d)

changes the direction of a force

124.

Simple machines help you make work __________.

a)

easier

b)

more difficult

c)

interesting

d)

wonderful

125.

This simple machine connects levels.

a)

lever

b)

wheel and axle

c)

pulley

d)

screw

e)

inclined plane

126.

This simple machine helps you to move heavy things across distance.

a)

lever

b)

wheel and axle

c)

pulley

d)

screw

e)

inclined plane

127.

This simple machine holds things together,

a)

lever

b)

wheel and axle

c)

pulley

d)

screw

e)

inclined plane

128.

This simple machine cuts things.

a)

lever

b)

wheel and axle

c)

wedge

d)

screw

e)

inclined plane

129.

This simple machine moves and lifts objects.

a)

lever

b)

wheel and axle

c)

wedge

d)

screw

e)

inclined plane

130.

This simple machine changes the direction of a force.

a)

lever

b)

wheel and axle

c)

wedge

d)

pulley

e)

inclined plane

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