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Force and Motion review

Total questions: 29

Worksheet time: 27mins

Name
Class
Date
1.

Another word for "a push" or "a pull".

a)

Inertia

b)

Gravity

c)

Friction

d)

Force

2.
Why is it harder for the boy in Image B to get down the hill?
a)
Motion
b)
Friction
c)
Work
d)
Displacement
3.
Which force produces a change in motion?
a)
unbalanced force
b)
balanced force
c)
gravitational force
d)
frictional force
4.
If these boys 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.
5.
What happens when two forces act in the same direction?
a)
They cancel each other out.
b)
The stronger one prevails.
c)
Their strengths are added.
d)
Their sum divided by the two is the total force.
6.
Which of the following statements is true? 
a)
Balanced forces cause a change in motion. 
b)
Unbalanced forces cause a change in motion. 
c)
Forces do not effect the change in motion. 
7.
Speed is equal to 
a)
Distance/Time
b)
Time/Distance
c)
Time x Distance
d)
Acceleration
8.
How is gravity affected by mass?
a)
the larger the mass of the object, the greater the gravity
b)
small objects have no gravity
c)
gravity is not affected by mass of objects, whether large or small
9.
What is a force that opposes motion between two surfaces?
a)
friction
b)
acceleration
c)
velocity
d)
motion
10.
What is the difference between mass and weight?
a)
mass is how much matter is in an object, and weight is the gravitational pull on that object
b)
mass and weight are the same
c)
weight affects how much mass is in an object
d)
weight is determined by how many atoms make up an object
11.
What slows down the motion of an object or keeps it from starting?
a)
mass
b)
friction
c)
gravity
d)
magnetism
12.
What is motion?
a)
It's like the ocean
b)
Any change in an animal or person's position.
c)
Motion is like acting
d)
Any change in an object or person's position.
13.
What pulls a ball back to earth?
a)
Gas
b)
Gravity
c)
Friction
d)
Molecules
14.
Why does a rolling ball stop?
a)
Gravity
b)
Friction
c)
Waterfalls
d)
Sand
15.
The measure of the force of gravity on your body is your _________________
a)
height
b)
length
c)
weight
d)
age
16.
The tendency of an object at rest to stay at rest unless it is acted upon by a force is ___________________
a)
inertia
b)
motion
c)
gravity
d)
lubricant
17.
A _____________________ must be exerted on an object at rest to cause it to move.
a)
weight
b)
inertia
c)
force
d)
gravity
18.
What 2 things do you need to calculate speed?
a)
distance and friction
b)
direction and time
c)
direction and friction
d)
distance and time
19.
If a tennis ball, a baseball, and a golf ball are dropped together from a high place, which ball will land first? 
a)
They land at the same time.
b)
The baseball lands first.
c)
The golf ball lands first.
d)
The tennis ball lands first.
20.
Why does a crumpled piece of paper land before a flat sheet of paper? 
a)
Gravity exerts more force on the crumpled paper. 
b)
There is more air resistance on the flat paper. 
c)
The crumpled paper is heavier
d)
The flat paper is lighter.
21.
A train that travels 100 kilometers in 4 hours is traveling at what average speed? Remember: Speed= distance/time
a)
50 km/h
b)
100 km/h
c)
400 km/h
d)
25 km/h
22.
A object with a lot of mass needs more force or less force to be moved? 
a)
More
b)
Less
23.

When the only force acting on an object is gravity, an object is doing what?

a)

Rolling

b)

Free falling

c)

gliding

d)

slowing down

24.

An object that is thrown is called what?

a)

projectile

b)

unbalanced force

c)

free falling

d)

inertia

25.

Friction due to air is called what?

a)

Gravity

b)

flying

c)

Air resistance

d)

Bernoulli's principle

26.

We learned 3 types of friction. Which of these is NOT one we learned?

a)

sliding

b)

dragging

c)

rolling

d)

fluid

27.

True or False. A ball that is dropped will hit the ground before a ball that is thrown forward (but not up).

a)

True

b)

False

28.

Why would you weigh less if you were on the moon?

a)

Because there is no gravity on the moon.

b)

Because the moon has more mass than earth.

c)

Because the moon has less mass than earth.

d)

Because you would lose so much weight during space travel.

29.

When learning about flight, we learned that Bernoulli's principle says that faster moving air (or a fluid) has _______ pressure.

a)

More

b)

Less

c)

Equal

d)

No