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Quiz 4 Forces

Total questions: 44

Worksheet time: 24mins

Name
Class
Date
1.

What is the unit to MEASURE force?

a)

Kilogram

b)

Meter

c)

Pounds

d)

Newton

2.

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

a)

friction

b)

force

c)

magnet

d)

gravity

3.
What is the net force?
a)
10 N
b)
0 N
c)
25 N
d)
1 N
4.
What is the net force?
a)
20 N 
b)
0 N 
c)
400 N 
d)
40 N 
5.
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.
6.

Forces that have a net force of zero Newtons

a)

Balanced force

b)

Unbalanced force

7.
What will cause an object to move?
a)
Applied forces
b)
Balanced forces
c)
Unbalanced forces
8.
A push or pull that causes a change in motion
a)
Friction
b)
Gravity
c)
Force
d)
Mass
9.
When forces are _________ the object DOES NOT move.
a)
unbalanced
b)
balanced
c)
heavy
d)
light
10.
When forces are ___________ the object will move.
a)
unbalanced
b)
balanced
c)
light
d)
gravity
11.
What is the net force of an object that is not moving?
a)
0 N
b)
100 N
c)
Upward force
d)
10 N
12.
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
13.

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

a)

balanced

b)

unbalanced

14.
Balanced forces do not change the objects speed or 
a)
direction
b)
distance 
c)
time
d)
mass
15.
According to Newton's First Law, an object in motion will tend to:
a)
stay at rest
b)
stay in motion
c)
change in direction
d)
slow down
16.
According to Newton's First Law, an object at rest will tend to do which of the following?
a)
stay at rest
b)
stay in motion
c)
speed up
d)
change in direction
17.
Which of the following could cause an acceleration?
a)
A balance between two forces
b)
A balance between three forces
c)
An imbalance between two forces
d)
Zero forces
18.
Multiplying the mass and acceleration of an object would give you:
a)
the force of gravity
b)
the force of friction
c)
the velocity
d)
the net force
19.
Which of the following is always true?
a)
Fnet = ma
b)
Fnet = m + a
c)
Fnet = m - a
d)
Fnet = m/a
20.
We often say that g = -9.8 m/s2. The lowercase g represents:
a)
the speed of gravity
b)
the velocity of gravity
c)
the acceleration of gravity
d)
the force of gravity
21.
An object has a mass of 10 kg. What is its weight?
a)
0.98 kg
b)
0.98 N
c)
98 kg
d)
98 N
22.
Fill in the blanks: _____ does not change from place to place, but _____ can change because of differences in the strength of gravitational pull.
a)
acceleration, weight
b)
weight, acceleration
c)
mass, weight
d)
weight, mass
23.
An unbalanced force causes:
a)
change in mass
b)
acceleration
c)
balanced forces
d)
change in time
24.
A book rests on a table. The normal force points:
a)
Up
b)
Down
c)
Left
d)
Right
25.
There is a small amount of friction as the sled shown is pulled to the left. The friction points:
a)
up
b)
down
c)
left
d)
right
26.
The same force acts on a heavy mass and a light mass. Which has a greater acceleration?
a)
The light mass
b)
The heavy mass
c)
They have the same acceleration.
d)
Neither will move.
27.
A 0.2kg mass hangs from a Newtons spring scale. The spring scale will read:
a)
0.2 N
b)
1 N
c)
1.96 N
d)
6.28 N
28.
A person stands on a scale in an elevator. If the elevator accelerates upward, what happens to their "weight"?
a)
Their "weight" increases.
b)
Their "weight" stays the same.
c)
Their "weight" decreases.
d)
Their "weight" changes to a negative value.
29.
A box is pushed left with 35 N and right with 40 N of force. The box has a mass of 5 kg. What is the acceleration?
a)
5 m/s2
b)
1 m/s2
c)
25 m/s2
d)
8 m/s2
30.

What type of forces is the boy most likely applying?

a)

friction

b)

gravity

c)

pull

d)

push

31.

You are pushing a wheelbarrow. What happens to the wheelbarrow's motion if more mass is added and you push with the same force?

a)

The motion will remain the same

b)

The motion will increase.

c)

The motion will decrease.

d)

The motion will change directions.

32.

Your mom is shopping at Costco. As she adds more items into her cart, she will need to use less force to move the cart as its mass increases.

a)

True

b)

False

33.

The motion of an object decreases if more force is applied in the same direction.

a)

true

b)

false

34.

___________ is a measure of the amount of matter in an object.

a)

gravity

b)

force

c)

mass

35.

When forces do not result in a change of motion, they are called __________.

a)

balanced forces

b)

unbalanced forces

36.

An icy road would have ________ friction.

a)

more

b)

less

37.

Which of the following has the least effect on this skydiver?

a)

friction

b)

gravity

c)

mass

d)

inertia

38.

MASS x ACCELERATION =

a)

Force

b)

motion

c)

speed

d)

push/pull

39.

The SI unit for force is _______

a)

Newtons

b)

Gravity

c)

Meter

d)

Joules

40.

An object at rest stays at rest until an outside force acts upon it. Which law?

a)

1st

b)

2nd

c)

3rd

41.

The motion of an object depends on the amount of force acting on it. Which law

a)

1st

b)

2nd

c)

3rd

42.

For every action there is an equal and opposite reaction. Which law?

a)

1st

b)

2nd

c)

3rd

43.

Without air resistance objects drop,

a)

at the same time

b)

faster depending on mass

c)

depends on the object

d)

there will be no gravity

44.

What causes on object so slow down while sliding on a surface?

a)

friction

b)

inertia

c)

momentum

d)

force

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