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The Laws of Motion

Total questions: 35

Worksheet time: 24mins

Name
Class
Date
1.
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
2.
When the force on a car is doubled, the acceleration is doubled.
a)
Newton's
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
3.
A skater pushes another skater forward, but the one pushing moves backwards.
a)
Newton's
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
4.
As the fuel in a rocket ignites, the force of gas expansion and explosion pushes out the back of the rocket and pushes the rocket forward.
a)
Newton's
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
5.

What is Newtons 1st law of motion?

a)

Force= Mass x acceleration

b)

An object at rest stays at rest unless acted on by an unbalanced force.

c)

For every action there is a equal and opposite re-action.

d)

Law of gravity

6.

Calculate the acceleration that results when a 12-N net force is applied to a 3-kg object.

a)

3 m/s2

b)

4 m/s

c)

13 m/s

d)

4 m/s2

7.
Which force produces a change in motion?
a)
unbalanced force
b)
balanced force
c)
gravitational force
d)
frictional force
8.
What is Newton's First Law known as? The Law of
a)
Friction
b)
Mass
c)
Inertia
d)
Gravity
9.
What Newtons law does this picture represent
a)
Newtons 2nd law 
b)
Law of gravity 
c)
Newtons 1st law
d)
Newtons 5th law
10.
LT5: The rate at which velocity CHANGES is: 
a)
acceleration
b)
speed
c)
direction
d)
physics
11.
When all the forces on an object are equal and opposite, & the net force is zero, that's...
a)
balanced forces
b)
unbalanced forces
c)
terminal velocity
d)
reaction forces
12.
The combination of all the forces acting on an object is the...
a)
net force
b)
action force
c)
reaction force
d)
balance force
13.

A cannonball with a mass of 0.5 kg is flying at an acceleration of 10 m/s2. What is it's force?

a)

50 N

b)

5 N

c)

20 N

d)

9.5 N

14.

The equation to calculate momentum is

a)

p = m x v

b)

p = m x v2

c)

a = F/m

d)

p = m x g

15.
The momentum of an object depends upon the object's ___________&_____________.  
a)
size and shape
b)
mass and speed
c)
mass and veloctiy
d)
mass and energy
16.
Which has more momentum: a car stopped at a red light or a bike moving at 15 mph?
a)
car
b)
bike
c)
they are equal
d)
cannot determine using the info provided
17.

Determine the momentum of 1000-kg car moving at 20 m/s south .........

a)

20000 N

b)

20000 Joules

c)

20000 Kg * m/s south

d)

10000 kg * m/s south

18.

A runner has a momentum of 720 kg*m/s and is traveling at a velocity of 5 m/s. What is his mass?

a)

14.4 kg

b)

1400 kg

c)

144 kg

d)

360 kg

19.

A 2 kg cart has a momentum of 10 kg*m/s. What is its velocity?

a)

22 m/s

b)

.2 m/s

c)

5.0 m/s

d)

20 m/s

20.
An object with a mass of 2000 kg at rest has what momentum?
a)
2000 kg m/sec
b)
0 kg m/sec
c)
2000 kg
d)
2000 m/sec
21.
In this type of collision, objects tend to "stick" together.
a)
elastic
b)
inelastic 
c)
They "stick" together in both types of collisions
22.
Momentum is conserved in this type of collision
a)
elastic
b)
inelastic
c)
momentum is conserved in both types of collisions
23.
When two objects collide, the Pbefore is ____________ the Pafter.
a)
more than 
b)
less than 
c)
equal to
d)
unrelated to
24.
Sally runs and jumps off of a diving board and lands on a tube (she stays in the tube).  The collision between Sally and the tube is
a)
Elastic
b)
Explosive
c)
Inelastic
d)
Completely absurd
25.
Heather noticed a collision outside the coffee shop where two cars collided and stuck together.  What type of collision did she observe?
a)
Elastic
b)
Explosive
c)
 Inelastic
26.
Lilly has a flat piece of paper and a ball of paper. She drops both papers at the same time from the same height. The ball of paper hits the ground first. Which force acts on the flat piece of paper that slows it down?
a)
friction
b)
gravity
c)
inertia 
d)
magnetism 
27.

If distance increases, gravity ______________

a)

decreases

b)

increases

c)

stays the same

d)

moves slower

28.

If masses increases, gravity _____________

a)

decreases

b)

stays the same

c)

increases

d)

moves faster

29.

________ _________ depends on a object's shape and the size of its surface.

a)

gravitational force

b)

applied force

c)

air resistance

d)

opposite force

30.
Sally experiences-
a)
Rolling Friction
b)
Sliding Friction
c)
Fluid Friction
d)
Static Friction
31.
Friction is a force that acts in an ___________ direction of movement.
a)
similar
b)
opposite
c)
parallel
d)
west
32.
Which type of friction occurs when objects are not moving?
a)
static
b)
sliding
c)
fluid
d)
rolling
33.
Suppose the force of friction on a sliding object is 25 N. The force needed to maintain a constant velocity is 
a)
more than 25 N
b)
25 N
c)
less than 25 N
d)
Not enough information to say
34.
Unbalanced forces cause an object to _____.
a)
remain motionless
b)
move at constant velocity
c)
speed up, slow down, or change direction
35.

Just after a person jumps out of the plane (before the parachute opens). The relative forces will be

a)

Balanced

b)

Unbalanced

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