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Forces and Newton's Laws

Total questions: 27

Worksheet time: 39mins

Name
Class
Date
1.

A lamp sitting on a table is demonstrating Newton's ___ Law.

a)

1st

b)

2nd

c)

3rd

d)

4th

2.

A rollercoaster heading down a hill is _____________.

a)

at rest

b)

slowing down

c)

accelerating

d)

velocity

3.

Newton's 3rd Law states that for ever action there is an equal and opposite ________.

a)

reaction

b)

satisfaction

c)

fraction

d)

transaction

4.

A ______ is a push or pull on an object.

a)

force

b)

speed

c)

acceleration

d)

velocity

5.

A car traveling 65 mph is an example of its ________.

a)

force

b)

speed

c)

acceleration

d)

velocity

6.

A force that causes an object to slow down when it touches another object is _________.

a)

gravity

b)

friction

c)

inertia

d)

Newton

7.

Newton's 2nd Law says the acceleration of an object depends on its _______ and ______. (Choose two answers)

a)

force or applied force

b)

weight

c)

gravity

d)

mass

8.

The picture is an example of Newton's...

a)

1st Law

b)

2nd Law

c)

3rd Law

9.
What is Newton's Second Law?
a)
forces do not cause acceleration
b)
mass is not related to acceleration
c)
F=ma
d)
force is not related to mass
10.
What is the unit to MEASURE force?
a)
Kilogram
b)
Meter
c)
Pascal
d)
Newton
11.
The force that opposes motion between two surfaces in contact with each other.
a)
inertia
b)
friction
c)
momentum
d)
gravity
12.

When an unbalanced force acts on an object, the force ______________________.

a)

changes the motion of the object

b)

is cancelled by another force

c)

does not change the motion of an object

d)

is equal to the weight of the object

13.
An automobile you are riding in suddenly stops, but you continue to go forward.
a)
Newton's
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
14.
Which force produces a change in motion?
a)
unbalanced force
b)
balanced force
c)
gravitational force
d)
frictional force
15.
Gravity attracts all objects towards one another.
a)
False
b)
True
c)
It depends
d)
I don't care
16.
As distance between two objects increase the pull of gravity 
a)
Increases
b)
Decreases
c)
Stays the same
17.
What is a measure of the change of velocity of a moving object?
a)
speed
b)
acceleration
c)
motion 
d)
velocity 
18.
If the velocity vector and acceleration vectors are moving in the same direction then
a)
speed will increase.
b)
speed will decrease.
c)
speed will be constant. 
19.
Balanced forces always have a net force of 
a)
10 N
b)
0 W
c)
10 W
d)
0 N
20.
True or False. Unbalanced forces will never have a net force of zero Newtons. 
a)
True
b)
False
21.
Force is a vector because 
a)
it has size
b)
it has direction
c)
it has both size and direction
22.
How does friction affect speed?
a)
more friction decreases speed
b)
more friction increases speed
c)
less friction decreases speed
23.
Friction is a force that acts in an ___________ direction of movement.
a)
similar
b)
opposite
c)
parallel
d)
west
24.
What two measurements are necessary for calculating speed?
a)
Mass and time
b)
Temperature and mass
c)
Mass and distance
d)
Distance and time
25.
What is the formula to calculate speed?
a)
Speed = Distance x Time
b)
Speed = Distance/Time
c)
Speed = Time/Distance
d)
Speed = Time x Distance
26.
Constant speed is:
a)
When the speed increases or decreases
b)
When the speed of the object does not change
27.
Calculate the speed:
A Car traveled 240 Km in 5 Hours
a)
48 Km/Hr
b)
1200 Km/Hr
c)
4.8 Km/Hr
d)
0.02 Km/Hr

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