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Force, Newton's 3 laws and Gravity

Total questions: 92

Worksheet time: 2hrs 17mins

Name
Class
Date
1.
What is a Force?
a)
The distance
b)
Mass
c)
A push or pull
d)
Give me a  failing grade 
2.
An _______ force must act on an object for it to CHANGE it's motion
a)
balanced
b)
unbalanced
c)
gravitational
d)
electrical
3.

If the net force is equal to zero, the forces acting on the object are

a)

balanced

b)

unbalanced

4.
Balanced forces do not change the objects speed or 
a)
direction
b)
distance 
c)
time
d)
mass
5.
The unit of force is
a)
m/s
b)
m/s^2
c)
newton
d)
kg
6.
Forces that have a net force of zero ( the object is still).
a)
Balanced force
b)
Unbalanced force
7.
What is the net force?
a)
5000 N right
b)
4000 N right
c)
40 N left
d)
4000 N left
8.
Jonny and Patty are pushing against a basketball. Both of them push against theball on opposite sides with a force of 20 N to keep the ball still. What is the net force?
a)
400 N
b)
24 N
c)
0 N
d)
40 N
9.
What is the net force in this picture?
a)
50 Newtons to the right
b)
950 Newtons to the right
c)
950 Newtons to the left
d)
50 Newtons to the left
10.
If an object is stationary (not moving) the forces acting upon it are _____________
a)
unbalanced
b)
weak
c)
balanced
d)
Hulk Smash!
11.
What type of force is shown in the picture?
a)
The Cat force
b)
Star Wars Force
c)
Unbalanced force
d)
Balanced  force
12.
What is a Force?
a)
The distance
b)
Mass
c)
A push or pull
d)
Give me a  failing grade 
13.
An _______ force must act on an object for it to CHANGE it's motion
a)
balanced
b)
unbalanced
c)
gravitational
d)
electrical
14.

If the net force is equal to zero, the forces acting on the object are

a)

balanced

b)

unbalanced

15.
Balanced forces do not change the objects speed or 
a)
direction
b)
distance 
c)
time
d)
mass
16.
The unit of force is
a)
m/s
b)
m/s^2
c)
newton
d)
kg
17.
Forces that have a net force of zero ( the object is still).
a)
Balanced force
b)
Unbalanced force
18.
What is the net force?
a)
5000 N right
b)
4000 N right
c)
40 N left
d)
4000 N left
19.
Jonny and Patty are pushing against a basketball. Both of them push against theball on opposite sides with a force of 20 N to keep the ball still. What is the net force?
a)
400 N
b)
24 N
c)
0 N
d)
40 N
20.
What is the net force in this picture?
a)
50 Newtons to the right
b)
950 Newtons to the right
c)
950 Newtons to the left
d)
50 Newtons to the left
21.
What will cause an object to move?
a)
Applied forces
b)
Balanced forces
c)
Unbalanced forces
22.
If an object is stationary (not moving) the forces acting upon it are _____________
a)
unbalanced
b)
weak
c)
balanced
d)
Hulk Smash!
23.
Which one is balanced?
a)
top
b)
bottom
c)
both
24.
Who wins the tug of war with what net force?
a)
The person on the left with 20 N
b)
The person on the left with 80 N
c)
The people on the right with 20 N
d)
The people on the right with 100 N
25.

Two forces act on an object to the right at the same time. What force is required to bring the object into equilibrium?

a)

9 N to the right

b)

9 N to the left

c)

3 N to the left

d)

18 N to the left

26.
When objects remain in the same place, it is called...
a)
gravity
b)
friction
c)
balanced force
d)
unbalanced force
27.
Who wins the tug of war with what net force?
a)
The person on the left with 20 N
b)
The person on the left with 80 N
c)
The people on the right with 20 N
d)
The people on the right with 100 N
28.

Two forces act on an object to the right at the same time. What force is required to bring the object into equilibrium?

a)

9 N to the right

b)

9 N to the left

c)

3 N to the left

d)

18 N to the left

29.

Label the forces acting in this picture.

a)air resistance
b)applied
c)gravity
1
2
3
1)
2)
3)
30.

You are standing on Earth in a spacesuit, when all of a sudden you're transported in the middle of space. Does your mass and weight change?

a)

Mass changes, but weight doesn't

b)

Mass stays the same, weight changes

c)

Both mass and weight change.

d)

Neither mass or weight change.

31.

A 4 kilogram mass is accelerated to 5 m/s/s. What is the net force acting on it?

a)

9 N

b)

20 N

c)

40 N

d)

25 N

32.

What is the magnitude and direction of the force in the free body diagram shown?

a)

5 N down

b)

0 N, no change in movement

c)

15 N up

d)

15 N down

33.

What is the magnitude and direction of the force in the free body diagram shown?

a)

2 N right

b)

2 N left

c)

4 N right

d)

2 N up and 2 N right

34.

What is the magnitude and direction of the force in the free body diagram shown?

a)

20 N, no change in motion

b)

20 N right

c)

20 N left

d)

0 N , no change in motion

35.

What is the magnitude and direction of the force in the free body diagram shown?

a)

70 N right

b)

70 N left

c)

50 N right

d)

50 N left

36.

What do we call a force that causes an object to accelerate?

a)

net force

b)

moving force

c)

acceleration force

d)

unbalanced force

37.

What do we call a force that has a net force of zero Newtons and the object does not change its motion?

a)

balanced force

b)

unbalanced force

c)

acceleration force

d)

net force

38.

What is the definition of net force?

a)

a push or a pull that acts on an object

b)

Net force equal 0N and there is no change in the object's motion

c)

the overall force acting on an object after all the forces are combined

d)

The force does not equal 0N, the object accelerates

39.
The sum of all forces acting on an object and direction
a)
Contact Force
b)
Balanced Force
c)
Unbalanced Force
d)
Net Force
40.

What is the net force?

a)

400 N Up

b)

400 N Down

c)

0

d)

800 N Down

41.
What is the net force?
a)
30 N left
b)
25 N right
c)
5 N left
d)
55 N right
42.
What is the net force?
a)
40 N left
b)
0 N Balalnced
c)
400 N right
d)
40 N right
43.
A wheeled cart is moving to the right at a constant speed.  Two forces of equal magnitude are acting upon the cart. Which of the following best describes the forces and motion of the cart?
a)
Balanced Forces, Constant Speed
b)
Balanced Forces, Acceleration
c)
Unbalanced Forces, Constant Speed
d)
Unbalanced Forces, Acceleration
44.

What is Newtons 1st law

a)

Inertia

b)

F=m*a

c)

Mass and acceleration

d)

force

45.

Mr. Haughey crashed his car. When he crashed, the car stops but he keeps going forward. Which one of newtons laws is this.

a)

2nd law

b)

1st law

c)

3rd law

d)

4th law

46.

Which one of these is the 2nd law

a)

The harder I push this, the faster it will go

b)

If I am in a car crash, and the car stops, why do I keep going forward?

c)

When I push on my desk, it pushes back at me

d)

When i drop a feather and a brick and there is no air resistance, they will land the same time

47.

Which one of Newtons laws does this equation belong to. F=m*a

a)

1st law

b)

2nd law

c)

3rd law

d)

4th law

48.

The faster the car I am in is moving, ______________

a)

The slower I am moving

b)

The faster I am moving

c)

I would not be moving

d)

I will stay at the same speed

49.

An elephant and a feather fall through the air. The force of air resistance is greatest on the:

a)

elephant

b)

feather

c)

same

50.

Newton's third law states that any action will have a(n) _______ and ______ reaction

a)

equal and same

b)

equal and opposite

c)

equal and equal to

51.

A magician pulls a rabbit out from in his hat

a)

Newton's 2nd Law

b)

Newton's 1st Law

c)

Newton's 3rd Law

52.

Which type of force(s) will cause a change in an object's motion?

a)

gravity

b)

balanced forces

c)

unbalanced force

d)

net force

53.

Which is newtons 3rd law

a)

for every thing there is reaction

b)

for every reaction there is a unusual action

c)

For every reaction there is an equal and opposite reaction

d)

for every reaction there is an good action

54.

Which is newtons first law states

a)

An object at rest will remain at rest unless a force is applied

b)

An object is moving

c)

An object has stopped

d)

An moving object will keep going when a force is applied to it

55.

Observe the motion of the washer as the notecard is pulled quickly out from under it. Which of Newton's Laws does this represent?


Observar el movimiento de la moneda mientras saca rápidamente el papel de debajo. ¿Cuál de las leyes de Newton representa esto?

a)

Newton's 1st Law, inertia

b)

Newton's 2nd Law, Force = m x a

c)

Newton's 3rd Law, action/reaction

56.

Watch what happens as Blake releases the balloon. Which of Newton's Laws does this represent?


Mira lo que sucede cuando Blake suelta el globo. ¿Cuál de las leyes de Newton representa esto?

a)

Newton's 1st Law, interia

b)

Newton's 2nd Law, Force = m x a

c)

Newton's 3rd Law, action/reaction

57.

What is the reaction force to a foot pushing down on the floor?

a)

The foot going through the floor

b)

The floor pushing back against the foot

c)

The floor breaking to the foot

58.

A player hits a ball with a bat. The action force is the impact of the bat against the ball. The reaction force is...

a)

The grip of the player's hands on the ball

b)

the air resistance of the ball

c)

the force of the ball against the bat

59.

What is the net force?

a)

3 N

b)

3 N, right

c)

17 N, right

d)

3 N, left

60.

How much force is needed to accelerate a 3kg skateboard at 5m/s2.

a)

8N

b)

1.6N

c)

0.6N

d)

15N

61.

What force slows objects down and keeps them from moving?

a)

Acceleration

b)

Gravity

c)

Friction

d)

Net Force

62.

If there is a big mass, it would need a stronger force to accelerate it. Which law does this describe?

a)

3rd law

b)

1st law

c)

2nd law

63.

An object in motion will stay in motion and an object at rest will stay at rest unless acted upon by an outside force. Which law does this describe

a)

2nd law

b)

1st law

c)

3rd law

64.

This is Newton's 2nd law

a)

True

b)

False

65.

This is Newton's 3rd law

a)

True

b)

False

66.

Which one of Newton's laws are displayed

a)

2nd law

b)

1st law

c)

3rd law

67.

Which one of Newton's laws is shown

a)

3rd law

b)

2nd law

c)

1st law

68.
Why is it harder for the boy in Image B to get down the hill?
a)
Motion
b)
Friction
c)
Work
d)
Displacement
69.
a)
1st
b)
2nd
c)
3rd
70.
What is the net force
a)
10 N
b)
0 N
c)
25 N
d)
1 N
71.

What is happening in the picture?

a)

gravity

b)

repulsion

c)

pushing

d)

attraction

72.

A measure of how much matter an object has is--

a)

weight

b)

gravity

c)

mass

d)

volume

73.
What is the definition of "weight"?
a)
measure of the force of gravity on your body
b)
the time it takes to get on a ride 
c)
the amount of matter in an object
d)
the size of an object
74.

On which celestial object (outer space) would your mass be the greatest?

a)

Earth

b)

Jupiter

c)

Sun

d)

Your mass doesn't change on different celestial objects

75.

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

76.
As an object's mass increases, its gravitational pull will ____________.
a)
decrease
b)
increase
c)
stay the same
d)
get weaker
77.
If an object has more mass, then it will
a)
weigh more.
b)
weigh less.
c)
weigh the same as an object with less mass.
d)
always have more volume than an object with less mass.
78.
Why would you weigh less on the moon compared to Earth?
a)
less air
b)
less sunlight
c)
more gravitational pull
d)
less gravitational pull
79.
As mass increases, what happens to gravitational force?
a)
increases
b)
decreases
c)
stays the same
d)
i don't know
80.
Which model has greater gravitational attraction (if any)
a)
Model A
b)
Model B
c)
Both Model A and Model B (same gravity)
81.
Which system has the greater gravitational attraction between the two objects (if any)?
a)
System A
b)
System B
c)
Same gravitational attraction fro System A and System B
82.

The gravitational force between Earth and the Sun causes ______.

a)

Earth to orbit the Moon

b)

Earth to orbit the Sun

c)

Earth's atmosphere

d)

the Moon to orbit Earth

83.

Gravity is a ______________ between objects and depends on mass and distance.

a)

force

b)

mass

c)

release

84.

What do the red arrows symbolize?

a)

The direction in which you would fall off of Earth.

b)

The pull of Earth's gravity on objects to the center of the Earth.

c)

The pull of the Moon's gravity on objects to the center of the Earth.

d)

Where different continents are.

85.
As distance between objects increases the pull of gravity...
a)
increases 
b)
decreases 
c)
Stays the same 
86.
__________holds all of the planets in orbit around the sun.
a)
Force
b)
Motion
c)
Weight
d)
Gravity
87.

Which has a STRONGER force of gravity, the Earth or the Moon?

a)

Earth

b)

Moon

88.
What is gravity?
a)
A force
b)
Energy
c)
A push
d)
All of them
89.
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
90.
__________holds all of the planets in orbit around the sun.
a)
Force
b)
Motion
c)
Weight
d)
Gravity
91.
Why a ball falls to the ground?
a)
Earth's force of gravity is GREATER than the ball's, so the ball gets attracted to the ground. 
b)
Earth's force of gravity is LESS than the ball's, so the ball gets attracted to the ground. 
92.

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

a)

air resistance causes the feather to slow down

b)

gravity pulls harder on the hammer than the feather

c)

gravity pulls harder on the feather than the hammer

d)

air resistance causes the hammer to fall slower

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