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WorksheetsForce Review Part 2
Total questions: 20
Worksheet time: 11mins
Name
Class
Date
1.
What force caused a skateboarder on a flat sidewalk to come to a stop?
a)
grease between the wheels
b)
rolling friction between the wheels and sidewalk
c)
less gravity on the sidewalk
d)
Newton's 3rd Law of Motion
2.
When you put a book on a table, the table pushes on the book.
a)
1st law
b)
2nd law
c)
3rd law
3.
A person is pushed forward into their seatbelt when a car stops.
a)
1st law
b)
2nd law
c)
3rd law
4.
A larger car takes more force to move.
a)
1st law
b)
2nd law
c)
3rd law
5.
A person leans on a wall and the wall pushes back.
a)
1st law
b)
2nd law
c)
3rd law
6.
A brick sits on a table until you push on it.
a)
1st law
b)
2nd law
c)
3rd law
7.
A rocket moves forward because gases are pushed out of the back.
a)
1st law
b)
2nd law
c)
3rd law
8.
A magician pulls out the tablecloth from under the plates on a table and the plates stay.
a)
1st law
b)
2nd law
c)
3rd law
9.
You pull back the paddle and the canoe goes forward.
a)
1st law
b)
2nd law
c)
3rd law
10.
Once the engine stops, a rocket coasts through space.
a)
1st law
b)
2nd law
c)
3rd law
11.
What is force measured in?
a)
kg
b)
m/s2
c)
N
d)
m/s
12.
What is Newton's Third Law?
a)
Object in motion stays in motion and an object at rest stays at rest unless acted on by a outside force
b)
Force = mass x acceleration
c)
For every action there is an equal and opposite reaction
13.
What is the net force?
a)
40 N left
b)
0 N Balalnced
c)
400 N right
d)
40 N right
14.
The total momentum does not change unless outside forces act on the objects
a)
True
b)
False
15.
The units for momentum are
a)
kg
b)
m/s
c)
kg-m/s
d)
kg/m/s
16.
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
17.
Momentum is a property of.....?
a)
velocity
b)
moving objects
c)
non-moving objects
18.
A 2.5 kg puck moving at 4.2 m/s collides with a 2.5 kg stationary puck on an air hockey table. What is the velocity of the second puck after the collision?
a)
2.1 m/s
b)
2.5 m/s
c)
4.2 m/s
d)
8.4 m/s
19.
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
20.
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
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