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Forces and Motion Review

Total questions: 30

Worksheet time: 14hrs 32mins

Name
Class
Date
1.
If the net force acting on any moving object is zero, the object will _______________.
a)
accelerate
b)
come to a stop
c)
continue in constant motion in a straight line
d)
move in a circular path
2.
What is the net force?
a)
10 N
b)
0 N
c)
25 N
d)
1 N
3.
Football A has a greater mass than football B.  Which football will have greater acceleration when both are thrown with the same force in the same direction?
a)
Football A
b)
Football B
c)
They will have the same acceleration
d)
Mass has no effect on acceleration
4.
You hit a wall with a stick.  The equal but opposite reaction is _____
a)
the wall pushes against you
b)
the stick pushes against you
c)
you push against the stick
d)
the wall pushes against the stick
5.
Which type of force(s) will cause a change in an object's motion?
a)
gravity
b)
zero net force
c)
balanced forces
d)
unbalanced forces
6.
What pulls a ball back to earth?
a)
Gas
b)
Friction
c)
Gravity
d)
Molecules
7.
According to Newton's Second Law, if you increase the force applied to an object:
a)
It accelerates more
b)
It doesn't move
c)
You get more inertia
d)
It decelerates
8.
What Newton's law does this picture represent?
a)
Newton's 2nd law
b)
Newton's 1st law
c)
Newton's 3rd law
d)
Newton's 5th law
9.

If all of the answer choices are moving at the same speed, which one has more inertia?

a)

Truck

b)

Cat

c)

Ant

d)

Skateboard

10.
The faster an object moves, the ________ kinetic energy it has. 
a)
more
b)
less
c)
none of the above
d)
all of the above 
11.
Gravitational potential energy depends on the ________ and ________ of the object. 
a)
Height and mass
b)
Friction and movement
c)
Mass and Movement
d)
Height and Friction 
12.
When you stretch a rubber band, you are storing __________ energy. 
a)
kinetic 
b)
potential
c)
none of the above
d)
all of the above 
13.
At which point is potential energy greatest?
a)
W
b)
X
c)
Y
d)
Z
14.
When a pendulum swings, at which point is kinetic energy highest?
a)
1
b)
2
c)
3
d)
4
15.
Which is an example of potential energy?
a)
a roller coaster speeding down a hill
b)
the pulled back string on an archers's bow
c)
releasing the strings on a guitar
d)
an electric current lighting a light bulb
16.
At which point is kinetic energy greatest?
a)
W
b)
X
c)
Y
d)
Z
17.
A car speeding up, a dog slowing down and person turning around the block are examples of..
a)
Balanced Forces
b)
Unbalanced Forces
18.

A skater pushes another skater forward, but the one pushing moves backwards.

a)

Newton's 1st Law

b)

Newton's 2nd Law

c)

Newton's 3rd Law

19.
After a cannonball 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 required to keep it moving. 
20.
Explain what happens to the potential energy of a rock as it falls off the side of a cliff.
a)
The kinetic energy decreases as the potential energy increases.
b)
The kinetic energy decreases as the potential energy decreases.
c)
The potential energy decreases as the kinetic energy increases.
d)
The potential energy decreases as the kinetic energy decreases. 
21.
A force that opposes the motion of objects that touch as they move past each other. 
a)
vector
b)
gravity
c)
friction 
22.

You buy an extra large coke at QT and forget to put the lid on. A car pulls out in front of you and your mom yells, “Look out!” You hold your cup still so it won't spill. However, the coke still spills out. Which term explains this situation?

a)

gravity

b)

inertia

c)

density

d)

friction

23.

A train was going down the track and a curve was approaching. The conductor went to apply the brake but they did not work. What can account for the train eventually slowing down even though there were no brakes?

a)

The opposing force of friction between the train's wheels and the rail stopped the train.

b)

The train ran out of momentum

c)

The natural state of the train is not to be in motion.

d)

The force of gravity slowed the train until it stopped.

24.

"A net force will cause an object to be in motion." Which of the following corrects this wrong statement?

a)

"Balanced forces will cause an object to be in motion."

b)

"A net force will only cause an object to be in motion if it was already in motion."

c)

"A net force has nothing to do with motion."

d)

"A net force will cause an object to change its motion."

25.

What Newton's law is the reasoning behind trucks cargo kept moving when the truck stopped.

a)

Newton's 1st Law

b)

Newton's 2nd Law

c)

Newton's 3rd Law

26.
A bowling ball and a soccer ball are rolling at the same speed  on the same surface. Why will the bowling ball be harder to stop?
a)
it has greater velocity
b)

it has greater inertia

c)
it has greater friction
d)
it has greater acceleration
27.

It is time for the annual pumpkin throwing contest. Which size pumpkin would go the farthest if each pumpkin were thrown with the same force?

a)

18 pounds

b)

10 pounds

c)

12 pounds

d)

6 pounds

28.

Which graph matches the scenario?

A rabbit runs away from a farmer, not stopping for anything!

a)

b)

c)

d)

29.

Which graph matches the scenario?

A child runs at a constant speed for 40 s before stopping.

a)

b)

c)

d)

30.

Which of these graphs do not show the object staying still?

a)
b)
c)
d)

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