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Unit 1 Science Review Force and Motion

Total questions: 49

Worksheet time: 2hrs 27mins

Name
Class
Date
1.

6.8D- During a science experiment, a student dropped a metal ball from a height of 150 m. The graph shows the distance the metal ball traveled from its initial position to where it hit the ground.


What information does the graph give you about the speed of the metal ball over time?

a)

The ball travels at a constant speed.

b)

The speed of the ball increases over time.

c)

The speed of the ball decreases over time.

d)

e speed of the ball increases at first, and then decreases as time increases.

2.
The change in a objects position is________.
a)
Force
b)
Motion
c)
Reaction
d)
movement
3.
When a car drives by, we know it is in motion because we use a ______________.
a)
ruler
b)
car
c)
reference point
d)
object
4.

2. By changing the surface over which the car rolls from sandpaper to wax paper, you might be able to test the effect of what force?

a)

A. Magnetism

b)

B. Wind

c)

C. Wind

d)

D. Friction

5.

During an experiment, students applied an equal force to push each box pictured below. If they pushed all of the boxes on the same surface for same amount of time, which box will MOST LIKELY move the greatest distance?

a)

F. 30 kg

b)

G. 15 kg

c)

H. 150 kg

d)

J. 40 kg

6.
______________________ is any push or pull on an object.
a)
Force
b)
Mass
c)
Gravity
d)
Air Resistance
7.
If I kick a soccer ball across the field, what vocabulary word tells me why the ball would slow down in the grass?
a)
acceleration
b)
friction
c)
gravity
8.
Which force produces a change in motion?
a)
unbalanced force
b)
balanced force
c)
gravitational force
d)
frictional force
9.
What is a force that works AGAINST MOTION?
a)
Force
b)
Motion
c)
Gravity
d)
Friction
10.
_______ is a force that acts between two objects which are touching. This force slows any movement between the two objects.
a)
pressure
b)
magnetism
c)
friction
11.

The change in a objects position is________.

a)

Force

b)

Motion

c)

Reaction

d)

Movement

12.
What will the net force on the soccer ball be?
a)
50 N to the left
b)
50 N to the right
c)
200 N to the left
d)
200 N to the right
13.

This motion graph represents:

a)

constant speed

b)

acceleration

c)

object at rest

d)

slowing down

14.
What kind(s) of objects have inertia?
a)
all objects with mass
b)
only objects at rest
c)
only objects in motion
d)
only objects whose motion is being changed
15.
A push, pull, friction or gravity are all examples of..
a)
velocity
b)
Newton's First Law of Motion
c)
momentum
d)
force
16.
A force that acts on an object to slow or stop its motion
a)
speed
b)
friction
c)
gravity
d)
unbalanced forces
17.
The force that pulls objects to earth or toward each other
a)
force
b)
gravity
c)
friction
d)
work
18.
Gravity is greater for a boulder falling than for a book falling. 
a)
TRUE
b)
FALSE
19.
Which scientist gave us the laws of motion?
a)
George Washington
b)
John Adams
c)
Sir Isaac Newton
20.
Which is harder to stop - an 18 wheeler or a motorcycle?
a)
motorcycle
b)
18 wheeler
21.
A push or pull that causes an object to move, stop, or change direction.
a)
force
b)
motion
c)
energy
d)
inertia
22.
A _____ moves an object closer to you.
a)
push
b)
pull
c)
friction
d)
cat
23.
What keeps the Moon in orbit around Earth?
a)
Earth's rotation.
b)
Earth's atmosphere.
c)
Earth's gravity.
d)
Earth's shape.
24.
Another way that force can cause the change in an object's motion is to...
a)
change its color.
b)
change its pitch.
c)
change its direction.
d)
change its spots.
25.

(5) Using the pictures above, determine which picture represents a balanced force.

a)

Picture A

b)

Picture B

c)

Picture C

d)

Picture D

26.

(7) Which scenario is showing gravity as the main force moving an object?

a)

My pencil fell to the ground when I dropped it.

b)

A plane taking off.

c)

A feather floating in the wind.

d)

A boy threw a ball up in the air.

27.
A push, pull, friction or gravity are all examples of..
a)
velocity
b)
Newton's First Law of Motion
c)
momentum
d)
force
28.
the amount of matter an object has is its
a)
velocity
b)
mass
c)
inertia
d)
momentum
29.
The tendency of an object that is at rest to stay at rest or if in motion to stay in motion is 
a)
momentum
b)
inertia
c)
speed
d)
velocity
30.

Which two of these forces act on parachutes?

a)

Air Resistance

b)

Gravity

c)

Thrust

d)

Kinetic Energy

31.

What causes an object to fall faster?

a)

Smaller surface area

b)

Larger surface area

c)

If it has a parachute

d)

If it is softer

32.

Another name for air resistance is...

a)

Buoyancy

b)

Streamline

c)

Gravity

d)

Drag

33.

The larger the surface area of the moving object, the ___________ air resistance there is.

a)

Less

b)

More

c)

Longer

d)

Quicker

34.

Air resistance pushes against falling

objects and __________________.

a)

Speeds them up

b)

Keeps them afloat

c)

Slows them down

d)

Spins them

35.

The larger the parachute the ____________

a)

Less air resistance

b)

More surface tension

c)

Less drag

d)

More drag

36.

Which has more air resistance?

a)
b)
37.

Air resistance is a force caused by...

a)

Water pushing against moving objects

b)

Air pushing against moving objects

c)

Gravity pushing against moving objects

d)

Normal force pushing against moving objects

38.

The more streamlined an object is, the...

a)

More air resistance

b)

Less air resistance

c)

Slower air resistance

d)

Faster air resistance

39.

Which is the best description of the purpose of a lubricant?

a)

Reduces the amount of friction and increases the amount of thrust

b)

Reduces the amount of friction and increases useful energy transfer

c)

Reduces wasteful energy transfer and increases the amount of thrust

40.
Friction is a force that acts in an ___________ direction of movement.
a)
similar
b)
opposite
c)
parallel
d)
west
41.
How does friction affect speed?
a)
more friction decreases speed
b)
more friction increases speed
c)
less friction decreases speed
42.
The rougher the surface, the faster an object will travel over the surface.
a)
True
b)
False
43.

Which of these materials do you predict would have the MOST amount of friction?

a)

metal

b)

tile

c)

sand paper

d)

denim

44.

Rough surfaces have _________

a)

greater friction

b)

less friction

c)

the same level of friction

45.

When we rub our hands together _________.

a)

frictional force works between them

b)

our hands become warm

c)

all off the above

46.

How does gravity affect water on Earth?

a)

Waterfalls fall towards the Earth

b)

Rain falls toward the ground

c)

Rivers flow downstream

d)

Water goes down the drain

47.

How would a classroom be without gravity?

a)

People would be floating in the air

b)

Chairs would stay on the floor

c)

Water would float around as spheres (circular shapes)

d)

It would be hard to move and get supplies

48.
Why can astronauts jump and float a little on the Moon?
a)
Because the Moon's gravity is NOT that STRONG.
b)
Because the Moon's gravity is VERY STRONG. 
49.
Where can you jump higher, on Earth or on the Moon?
a)
Earth
b)
Moon

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