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Force & Newton's Laws

Total questions: 66

Worksheet time: 2hrs 12mins

Name
Class
Date
1.
When mass increases then gravity
a)
Decreases
b)
Increases
c)
Stays the same
2.
What does the strength of gravity between two objects depend upon?
a)
Mass & distance
b)
Mass & weight
c)
Gravity & inertia
d)
Inertia & mass
3.

Calculate the NET FORCE in the diagram.

a)

100 N to the right

b)

50 N to the left

c)

50 N to the right

d)

3 N to the left

4.

Calculate the NET FORCE in the diagram.

a)

0 N

b)

300 N to the left

c)

300 N to the right

d)

1 N to the right

5.

Calculate the NET FORCE in the diagram.

a)

80 N to the right

b)

100 N to the left

c)

60 N to the right

d)

80 N to the left

6.

Calculate the NET FORCE in the diagram.

a)

45 N to the right

b)

95 N to the right

c)

60 N to the left

d)

50 N to the left

7.

Which direction will the sofa move when the forces are applied?

a)

Right

b)

Left

c)

The sofa will not move

8.

Which direction will the skateboard move when the forces are applied?

a)

Right

b)

Left

c)

The skateboard will not move

9.

Which direction will the table move when the forces are applied?

a)

Right

b)

Left

c)

The table will not move

10.

Which direction will the controller move when the forces are applied?

a)

Right

b)

Left

c)

The controller will not move

11.

Balanced or Unbalanced?

a)

Balanced

b)

Unbalanced

12.

Balanced or Unbalanced?

a)

Balanced

b)

Unbalanced

13.

Balanced or Unbalanced?

a)

Balanced

b)

Unbalanced

14.

Balanced or Unbalanced?

a)

Balanced

b)

Unbalanced

15.

The force that acts in the opposite direction of motion when two surfaces come in contact.

a)

Friction

b)

Gravity

c)

Force

d)

Acceleration

16.

A push or pull exerted on an object

a)

Friction

b)

Gravity

c)

Force

d)

Acceleration

17.

The force that pulls objects towards each other

a)

Friction

b)

Gravity

c)

Force

d)

Acceleration

18.

The tendency for an object to resist changes in its motion

a)

Inertia

b)

Motion

c)

Speed

d)

Velocity

19.

Which of Newton's 3 Laws explains a satellite orbiting the Earth?

a)

Newton's 1st Law

b)

Newton's 2nd Law

c)

Newton's 3rd Law

20.

Which of Newton's 3 Laws explains a rocket blasting off into space?

a)

Newton's 1st Law

b)

Newton's 2nd Law

c)

Newton's 3rd Law

21.

Which of Newton's 3 Laws explains why it requires more force to push a full box than an empty one?

a)

Newton's 1st Law

b)

Newton's 2nd Law

c)

Newton's 3rd Law

22.

Which of Newton's 3 Laws explains rowing a boat?

a)

Newton's 1st Law

b)

Newton's 2nd Law

c)

Newton's 3rd Law

23.

Which of Newton's 3 Laws explains a clock hanging on the wall?

a)

Newton's 1st Law

b)

Newton's 2nd Law

c)

Newton's 3rd Law

24.

Which of Newton's 3 Laws explains why pushing an empty grocery cart is easier than pushing a full one?

a)

Newton's 1st Law

b)

Newton's 2nd Law

c)

Newton's 3rd Law

25.

Calculate the force needed to cause a 500 kg car to accelerate at 10 m/s2

a)

50 N

b)

0.02 N

c)

510 N

d)

5000 N

26.

Calculate the force needed to cause a 6 kg car to accelerate at 20 m/s2

a)

26 N

b)

14 N

c)

120 N

d)

3.33 N

27.
Forces that have a net force of zero ( the object is still).
a)
Balanced force
b)
Unbalanced force
28.
With unbalanced forces, the object will move in the direction of the _______ force.
a)
larger 
b)
smaller 
c)
equal 
29.
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
30.
When two children of equal weight sit at opposite ends of a seesaw, they create
a)
gravity
b)
unbalanced forces
c)
motion
d)
balanced forces
31.
What is the net force?
a)
5000 N right
b)
4000 N right
c)
40 N left
d)
4000 N left
32.
What unit is used when measuring force? (A force is a push or a pull)
a)
miles per hour (mph)
b)
Newton (N)
c)
pounds per foot
d)
inches per second
33.
What Law of Motion states, "For every action there is an equal and opposite reaction?"
a)
1st Law of Motion
b)
2nd Law of Motion
c)
3rd Law of Motion
d)
The 19th Amendment
34.
Which of Newton's laws is illustrated when a magician pulls a tablecloth out from under the dishes without disturbing them?
a)
first
b)
second
c)
third 
d)
fourth
35.
Which has more Inertia? (so need more force to move) 
a)
Truck
b)
Ant
c)
A cat
d)
A skateboard
36.
A person is pushed forward into their seatbelt when a car stops
a)
1st
b)
 2nd
c)
2 and 3
d)
3rd 
37.
Which law explains why when you put a book on a table the table pushes on the book
a)
3rd law
b)
4th law
c)
1st law
d)
2nd law
38.
friction is a force that acts 
a)
in the same direction as the force
b)
opposite to the direction of the force
c)
with the force
d)
towards the direction of the force
39.
If you exert a net force of 8 N on a 2-kg object, what will its acceleration be?
a)
2 m/s2
b)
4 m/s2
c)
16 m/s2
d)
10 m/s2
40.
If an object was accelerating at 10 m/s^2, and a force of 10 newtons was required to accelerate it, what was the object's mass?
a)
1 kilogram
b)
10 kilograms
c)
2 kilograms
d)
5 kilograms
41.

What is Newton's 1st Law?

a)

F=ma

b)

Every action has an equal and opposite reaction

c)

An object at rest stays at rest, and an object in motion stays in motion, unless acted upon by an unbalanced force

42.

What is Newton's 2nd Law?

a)

F=ma

b)

Every action has an equal and opposite reaction

c)

An object at rest stays at rest, and an object in motion stays in motion, unless acted upon by an unbalanced force

43.

What is Newton's 3rd Law?

a)

F=ma

b)

Every action has an equal and opposite reaction

c)

An object at rest stays at rest, and an object in motion stays in motion, unless acted upon by an unbalanced force

44.
If a ball of cheese is fired into frictionless space, the amount of force needed to keep it going equals
a)
twice the force with which it was fired
b)
the same amount of force with which it was fired
c)
1/2 the force with which it was fired
d)
zero, since no force is requires to keep it moving. 
45.
Which one needs a greater net force to move, a kilogram of feathers or a kilogram of iron? 
a)
feathers 
b)
iron
c)
same
d)
depends on their friction
46.
If a 10 kilogram object accelerates suddenly at 15 m/s2, how much force was applied to the object?
a)
150 Newtons
b)
15 Newtons
c)
150 kilograms
d)
100 kilograms
47.
What type of friction is not moving?
a)
static
b)
sliding
c)
fluid
d)
rolling
48.
Rougher surfaces have ...
a)
greater friction
b)
less friction
c)
the same level of friction
49.

Wheels on a skateboard most likely experiences-

a)

Rolling Friction

b)

Sliding Friction

c)

Fluid Friction

d)

Static Friction

50.

The snowboarder experiences-

a)

Rolling Friction

b)

Sliding Friction

c)

Fluid Friction

d)

Static Friction

51.
The sum of all forces acting on an object and direction
a)
Contact Force
b)
Balanced Force
c)
Unbalanced Force
d)
Net Force
52.
The center of a bar magnet is the strongest
a)
True
b)
False
53.
Magnetic NORTH is actually geographic _________
a)
SOUTH
b)
NORTH
c)
EAST
d)
WEST
54.
If the end of an unknown magnet sticks to a magnet pole labeled "North" the unknown end must be...
a)
North
b)
South
c)
East 
d)
West
55.
Magnets stick to any materials that are made of
a)
Iron, Nickel, Copper
b)
Iron, Nickel, Cobalt
c)
Ions, Nickel, Cobalt
d)
Iron, Lead, Cobalt
56.
What will happen when these magnets are brought close together?
a)
They will attract each other.
b)
They will repel each other.
c)
Both magnets will turn to the left
d)
Both magnets will turn to the right
57.
Where is the force of attraction the strongest on a magnet?
a)
at the poles
b)
in the middle
c)
above the magnet
d)
below the magnet
58.
The magnet's shown will
a)
not move
b)
attract
c)
repel
d)
all of the above
59.
If you cut a magnet in half, what happens to the poles?
a)
One half gets the North Pole, the other half gets the South Pole
b)
Both halves get only a North Pole
c)
Both halves get only a South Pole
d)
Both halves get a North pole and a South Pole
60.
Inside of magnets there are tiny magnets called _______
a)
atoms
b)
domains
c)
mini magnets
61.
What is weight?
a)
The measure of how HEAVY something is.
b)
The measure of how much GRAVITY is pulling on an object.
c)
BOTH answers are correct.
d)
None of them.
62.
If the mass of an object on Earth is 18 grams, what would the mass of the same object be on the Moon?
a)
18 g
b)
4 g
c)
0 g 
d)
32 g 
63.
The scientific unit of weight is
a)
Kg
b)
N
c)
pounds
d)
Kgm/s
64.
The amount of matter in an object is 
a)
pressure
b)
weight
c)
mass
d)
force
65.

The scientific unit for mass is

a)

Kg

b)

N

c)

pounds

d)

ounces

66.

What is the acceleration due to gravity on Earth?

a)

9.8 N

b)

1.622 m/s2

c)

5.76 m/s2

d)

9.8 m/s2

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