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Physics Unit Review

Total questions: 77

Worksheet time: 50mins

Name
Class
Date
1.

The combination of all forces acting on an object. 

a)

Net Force

b)

Balanced Force

c)

Balanced Force

2.

When opposite forces cancel each other out.  There is no change in motion.  The net force equals zero. 

a)

Balanced Forces

b)

Net Force

c)

Unbalanced Forces

3.

Changing position relative to another object

a)

Distance

b)

Motion

c)

Reference Point

4.

Friction is a force that acts in the ______________ direction of the way the object is trying to move. 

a)

same

b)

perpendicular

c)

opposite

5.

What is the net force shown in the picture?

a)

10 Newtons

b)

5 Newtons

c)

3 Newtons

d)

2 Newtons

6.

The LOWER the mass of an object, the more force it takes to start it, stop it, or change its direction. 

a)

True

b)

False

7.

Newton's 1st Law of Motion states "an object at rest stays at rest and an object in motion stays in motion until an unbalanced force acts on it." What is this called? 

a)

speed

b)

gravity

c)

inertia

d)

velocity

8.

What is the correct formula to use for the following problem:

"How much TIME will it take for a bug to travel 5 meters across the floor if it is traveling 1 meter/second?"

a)

D=SxT

b)

S=D/T

c)

T=D/S

9.

What is the correct formula to use for the following problem:

"You got to the mailbox 45 seconds after you got out of the car, which is 90 meters away.  How FAST did you travel to the mailbox?"

a)

S=D/T

b)

T=D/S

c)

D=SxT

10.

Which of the following statements is associated with Newton's 3rd Law of Motion?

a)

For every action, there is an equal and opposite reaction

b)

Two objects must be involved to create a force

c)

Whenever an object pushes another object, it gets pushed back in the opposite direction equally as hard.

d)

All of the above

11.

The following statement is an example of Newton's Third Law: 

"A bird can fly because as its wings push against the air, the air pushes back against its wings."

a)

True

b)

False

12.

In the formula F=ma, what is "F"?

a)

Force

b)

Mass

c)

Acceleration

13.

In the formula F=ma, what is "m"?

a)

Force

b)

Mass

c)

Acceleration

14.

In the formula F=ma, what is "a"?

a)

Force

b)

Mass

c)

Acceleration

15.

Mass is measured in ____________________________________.

a)

kilograms (kg)

b)

Newtons (N)

c)

m/s2 or m/s/s or m/s^2

16.

Force is measured in ________________________________________.

a)

m/s2 or m/s/s or m/s^2

b)

Newtons (N)

c)

kilograms (kg)

17.
Calculate the net force of the object in the image shown.
a)
20N
b)
35N
c)
5N
d)
25N
18.

What is the net force?

a)

3 N

b)

3 N, right

c)

17 N, right

d)

3 N, left

19.
If these teams 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.
20.
With unbalanced forces, the object will move in the direction of the _______ force.
a)
larger 
b)
smaller 
c)
equal 
21.
What is a force?
a)
the PUSH or PULL on an object 
b)
The MOTION an object creates
c)
The objects HITTING one another
d)
Going REALLY FAST
22.
What is the unit for FORCE? 
a)
N (Newtons)
b)
lbs (pounds)
c)
g (grams)
d)
m/s (meters per second)
23.
Which direction will the object move?
a)
Up
b)
Down
c)
Right
d)
Left
24.

Object is...

a)

constant speed

b)

speeding up

c)

slowing down

d)

stopped

25.

Object is...

(hint: equal distance... equal time)

a)

constant speed

b)

speeding up

c)

slowing down

d)

stopped

26.

Object is...

a)

constant speed

b)

speeding up

c)

slowing down

d)

stopped

27.

Object is...

a)

(1) speeding up,

(2) constant speed,

(3) speeding up

b)

(1) constant speed.

(2) stopped,

(3) constant speed

28.

Object is ...

a)

stopped

b)

constant speed

c)

speeding up

29.

What is this line of this graph showing?

a)

moving away from starting point at a constant speed

b)

moving back towards the starting point at a constant speed

c)

acceleration (getting faster)

d)

deceleration (getting slower)

30.
Which graph is showing acceleration (getting faster)
a)
D
b)
E
c)
both D and E
d)
neither D or E
31.
How long did it take this object to travel 10 m?
a)
0 s
b)
10 s
c)
15 s
d)
20 s
32.
At 60 seconds, how far had this object traveled? 
a)
0 m
b)
10 m
c)
20 m
d)
40 m
33.

What is happening at E?

a)

Stationary

b)

Accelerating

c)

Constant speed; moving away from the starting position

d)

Constant speed; returning to start position

34.

What is Newton's 1st law?

a)

Law of Force and Acceleration

b)

Law of Inertia

c)

Law of Action-Reaction

d)

Law of motion

35.

Newtons 3rd Law of Motion states:

a)

An object at rest will remain at rest unless acted upon by an outside force.

b)

For every action, there is an equal and opposite reaction

c)

The greater the mass of an object, the more force it will take to accelerate the object

36.

What Newtons law does this picture represent

a)

Newtons 1st law

b)

Newtons 2nd law

c)

Newtons 3rdt law

d)

Newtons 4rth law

37.

The formula for Force is:

a)

Force= Magnet x Acceleration

b)

Force= Mass x Acceleration

c)

Force= Mass x Arsenic

d)

Funny= Monkey x Arrive

38.

Which is an example of Newton's 2nd law?

a)

A ball bouncing

b)

A fan spinning

c)

Pushing a 10 pound box

d)

Sneezing

39.

A push or pull on an object is called...

a)

Acceleration

b)

Mass

c)

Inertia

d)

Force

40.

If we put the same force on a bowling ball and a soccer ball, the soccer ball will move faster! Which law explains this?

a)

1st

b)

2nd

c)

3rd

41.

Which law explains that it would take more force to push the car than the lawnmower?

a)

1st

b)

2nd

c)

3rd

42.

Which law explains why the driver "keeps moving forwards, even though the car has stopped"?

a)

1st

b)

2nd

c)

3rd

43.

Which way would a swimmer push to move forward in the water?

a)

To the left

b)

Forward

c)

Backward

44.
"For every action, there is an equal and opposite reaction."
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's 4th Law
45.

The reason a ball bounces up when it hits the ground:

a)

The ball and ground repel each other.

b)

The ball exerts a force on the ground, and the ground exerts a force on the ball.

46.

Forces that are exerted on an object which are equal

a)

Unbalanced force

b)

Balanced force

47.

Unequal forces applied to an object.

a)

Unbalanced force

b)

Balanced force

48.

A card sliding across a table.

a)

Unbalanced force

b)

Balanced force

49.

A cat shoving a glass off a table

a)

Unbalanced force

b)

Balanced force

50.

An airplane taking off

a)

Unbalanced force

b)

Balanced force

51.

Which of the following is an example of an unbalanced force?

a)
b)
c)
d)
52.

If the sum of the forces acting on the object is zero the forces are balanced and the object won't move.

a)

True

b)

False

53.
How will this object move? 
a)
It won't move. 
b)
It will move to the right. 
c)
It will move to the left. 
d)
It will move up. 
54.
What is the net force?
a)
40 N left
b)
0 N Balalnced
c)
400 N right
d)
40 N right
55.
What is the net force?
a)
400 N Up
b)
400 N Down
c)
- 400 N Down
d)
800 N Down
56.

Calculate the resultant force.

a)

40N, Left

b)

40N, Right

c)

0N, Balanced

d)

75N, Right

57.
When the resulting force is greater than zero what type of force is acting on the objects? 
a)
balanced force
b)
unbalanced force
58.
You push on a tree with 20 N of Force. If the tree doesn't move, the tree is pushing back on you with _____of Force.
a)
20 N 
b)
40 N 
c)
10 N 
d)
0 N
59.
If there are two forces going in the same direction how would you find the net force?
a)
Subtract
b)
Add
c)
Neither
d)
Multiply
60.

A train travels 25 km in 5 hrs. How fast is the train going?

a)

25 miles/hr

b)

5 km/hr

c)

5 m/s

d)

50 km/hr

61.
A worm traveled 50 centimeters in 5 minutes.  What is the average speed of the snail?
a)
10 cm/m
b)
25 cm/m
c)
250 cm/m
d)
1 cm/m
62.
Soccer ball A goes 15 feet in 3 seconds, and Ball B goes 12 feet in 2 seconds. Which ball moved the fastest?
a)
Soccer Ball A
b)
Soccer Ball B
c)
Their speeds are equal.
63.
What is the average speed of Ben’s balloon car that takes 5 seconds to travel 15 meters. (USE CORRECT UNITS!)
a)
3 m/s
b)
75 m/s
c)
10 m/s
d)
1/5 m/s
64.
Allen travels 100 km in 5hrs. Find his average speed in km/h
a)
5km/hr
b)
10km/hr
c)
50km/hr
d)
20km/hr
65.
What two measurements are necessary for calculating speed?
a)
Mass and time
b)
Temperature and mass
c)
Mass and distance
d)
Distance and time
66.
A snail can move approximately 0.30 meters per minute. How many meters can the snail cover in 15 minutes?
a)
4.5 m
b)
50 m
c)
0.02 m
d)
14 m
67.

You are going to race your friend to a tree near the back of the playground. The tress is 24 meters away from where you stand. It will take you 4 seconds to reach the tree. What will your average speed be?

a)

6 mph

b)

16 m/s

c)

60 m/s

d)

6 m/s

68.

Michael walked at 2 m/s for 3 minutes. How far did he walk?

a)

360 m

b)

6 m

c)

18 m

d)

5 m

69.

What is inertia?

a)

An object's resistance to a change in motion

b)

An object's speed

c)

An object's weight

d)

Gravity

70.

Kate travels a distance of 9 km from her house to her mom's house at 18 km/hr and runs to the store afterwards at 15 km/hr. The whole trip takes 1 hour. How far did she drive altogether?

a)

12.5 km

b)

9 km

c)

24 km

d)

18 km

71.

How do you calculate time?

a)

multiply distance and speed

b)

distance divided by speed

c)

speed divided time

d)

divide distance and density then multiply by volume

72.
Can be measured in seconds (s)
a)
Distance
b)
Time
c)
Speed
d)
Acceleration
73.

Which of these is NOT a unit of time?

a)

hours

b)

minutes

c)

seconds

d)

metres

74.

Arnold drives 120 km in his car at a speed of 60 km/h. How long did the journey take?

a)

180 hours

b)

60 hours

c)

3 hours

d)

2 hours

75.

Arnold drives 120 km in his car at a speed of 60 km/h. How long did the journey take?

a)

180 hours

b)

60 hours

c)

3 hours

d)

2 hours

76.

What should you solve for in a problem that asks how long it took an object to move from one point to another?

a)

Distance

b)

Time

c)

Speed

77.

How long will it take you to drive 160 kilometers if you drive 40 kilometers an hour? (Give number only.)

(a)  

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