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Worksheets

Unit 2 District Test Study Guide

Total questions: 70

Worksheet time: 2hrs 39mins

Name
Class
Date
1.
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
2.
What is the net force?
a)
17 N Right
b)
3 N Right
c)
3 N Left
d)
17 N Left
3.
What is the unit for FORCE? 
a)
N (Newtons)
b)
lbs (pounds)
c)
g (grams)
d)
m/s (meters per second)
4.
Which one is balanced?
a)
top
b)
bottom
c)
both
5.
Is it BALANCED? 
a)
Yes
b)
No
6.
This is an example of what kind of force?
a)
Balanced Force
b)
Pushing Force
c)
Gravity Force
d)
Unbalanced Force
7.
Which direction will the object move?
a)
Up
b)
Down
c)
Right
d)
Left
8.
If the net force is 0 the object will ... 
a)
CHANGES motion
b)
STAY the SAME, NOT Move
9.

How do you find the net force of this image.

a)

Add up all the arrows

b)

Add a green arrow and the orange arrow.

c)

Subtract all the arrows.

d)

Add the green arrows and subtract the orange arrow.

10.
If there are two forces going in the SAME direction, you would ...?
a)
(-) Subtract the forces
b)
(+) Add the forces
c)
Neither
d)
(x) Multiply
11.

If the boy is pulling with a force of 10 N and the girl is pushing with a force 20 N, what is the net force on the box?

a)

10 N

b)

20 N

c)

30 N

d)

0 N

12.

Which one of Newton's laws is shown

a)

3rd law

b)

2nd law

c)

1st law

13.

What does this picture represent

a)

Force,magnetism,acceleration

b)

Force, money, Apples

c)

Force, Mass, Acceleration

d)

Funny, monkeys, Arrive

14.

Which one of Newton's laws are displayed

a)

2nd law

b)

1st law

c)

3rd law

15.

Which of Newton's laws is shown

a)

1st law

b)

3rd law

c)

2nd law

16.

This is Newton's 3rd law

a)

True

b)

False

17.

This is Newton's 2nd law

a)

True

b)

False

18.

An object in motion will stay in motion and an object at rest will stay at rest unless acted upon by an outside force. Which law does this describe

a)

2nd law

b)

1st law

c)

3rd law

19.

If there is a big mass, it would need a stronger force to accelerate it. Which law does this describe?

a)

3rd law

b)

1st law

c)

2nd law

20.

What force slows objects down and keeps them from moving?

a)

Acceleration

b)

Gravity

c)

Friction

d)

Net Force

21.

When there is a change in motion?

a)

When forces are balanced

b)

When the forces are unbalanced

c)

Whe forces are equal

d)

Never

22.
A box slides across a floor at a constant velocity. What forces act on the box?
a)
friction, gravity
b)
friction, tension, gravity
c)
friction, normal force, gravity
d)
friction, normal force, net force
23.
A box is moving to the left up a ramp. Which way is the force of friction pointing?
a)
down the ramp to the right
b)
up the ramp to the left
c)
there is no friction
d)
straight up
24.
A box slides across a perfectly smooth floor at a constant velocity. (The phrase "perfectly smooth" suggests that there is NO friction). What forces act on the box?
a)
tension, gravity
b)
tension, gravity, normal force
c)
tension, gravity, normal force, friction
d)
gravity, normal force, friction
25.
What is the direction of the tension force from the attached rope?
a)
 there is no tension
b)
straight up
c)
straight down
d)
up the ramp to the right
26.
What forces act on the ball as it moves around the "perfectly smooth" loop? ("perfectly smooth" suggests there is NO friction)
a)
normal, friction, tension
b)
normal, friction
c)
normal, gravity, tension
d)
normal, gravity
27.
What is the direction of the force of gravity acting on the box?
a)
down the ramp to the right
b)
straight up
c)
straight down
d)
up the ramp to the left
28.
What symbol do we use to represent a "body" in a free-body diagram?
a)
small dot
b)
small box
c)
an outline of a human body
d)
small triangle
29.
When completing a free-body diagram, how should you draw the force arrows on the "body"?
a)
with the arrow tail touching the body
b)
with the arrow tip touching the body
c)
it does not need to touch the body
d)
it doesn't matter, tail or tip can touch
30.
What is the Conversation of Momentum?
a)
momentum before a collision is equal to momentum after a collision
b)
to conserve momentum we must not use any
c)
it is good to save momentum for important times
d)
when we transfer momentum between two things, some is lost as heat
31.
Ms. Schmidt comes in the morning and moves a box of textbooks to the right with 50 N of force. Mr. Jensen comes in the afternoon and moves the same box of textbooks to the left with 150 N of force. What is the net (resultant) force?
a)
200 N
b)
100 N left
c)
100 N right
d)
0 N
32.
What are the two ways we can have UNBALANCED forces?
a)
1) unequal forces in opposite directions  and 2) forces in same direction
b)
1) forces in same direction and 2) equal forces in opposite direction
c)
1) unequal forces in opposite directions and 2) forces in opposite directions but same sizes
d)
you can't have unbalanced forces, forces will always balance each other out
33.
A box is sliding across a floor while experiencing a frictional force between the box and floor. The box is sliding from left to right. What direction is the force of friction pointing?
a)
up
b)
down
c)
right
d)
left
34.

What is the extension of the spring?

a)

4 cm

b)

7 cm

c)

3 cm

d)

11 cm

35.

What is the original length of the spring?

a)

4 cm

b)

7 cm

c)

3 cm

d)

11 cm

36.

What will be the length of the spring when a total of 40g is hung on the spring?

a)

3 cm

b)

10 cm

c)

7 cm

d)

13 cm

37.

Based on the graph, what is the original length of the spring?

a)

4 cm

b)

1 cm

c)

2 cm

d)

12 cm

38.

Based on the graph, what is the length of the spring when the spring is loaded by a 60g mass?

a)

6 cm

b)

10 cm

c)

14 cm

d)

12 cm

39.

Based on the graph, what will be the length of the spring when the spring is loaded by a 100g mass?

a)

6 cm

b)

10 cm

c)

14 cm

d)

16 cm

40.

Based on the graph, what is the original length of the spring?

a)

0 cm

b)

12 cm

c)

cannot be determined

d)

6 cm

41.

The original length of a spring is 5 cm.

Based on the graph, what is the length of the spring when the spring is loaded by a 40g mass?

a)

1 cm

b)

11 cm

c)

cannot be determined

d)

6 cm

42.

When the spring is loaded by a 80g mass, the length of the spring is 22 cm.

Based on the graph, what is the original length of the spring

a)

10 cm

b)

34 cm

c)

cannot be determined

d)

4 cm

43.

The original length of a spring is 20 cm.

Based on the graph, what will be the length of the spring when the spring is loaded by a 120g mass?

a)

18 cm

b)

38 cm

c)

cannot be determined

d)

12 cm

44.

Four different springs were tested and their results were recorded in the graph below.

Which spring is the stiffest?

a)

A

b)

B

c)

C

d)

D

45.

Four different springs were tested and their results were recorded in the graph below.

Which spring is most suitable to measure light object?

a)

A

b)

B

c)

C

d)

D

46.
Which represents the acceleration of the ball?
a)
A
b)
B
c)
C
d)
D
47.
Which of the following depict the speed of the blowing ball?
a)
A
b)
B
c)
C
d)
D
48.
A horse gallops around a circular arena.  The centripetal force on the horse is ___.
a)
directed outward
b)
tension
c)
directed toward the center of the arena
d)
9.8 N
49.
What relationship exists between the radius of a circle and the centripetal acceleration?
a)
direct
b)
inverse
c)
exponential
d)
inverse squared
50.
Which of the following units is used for tangential velocity?
a)
m/s2
b)
N
c)
J
d)
m/s
51.
Which of the following is the unit for centripetal force?
a)
J
b)
m/s2
c)
kg⋅m/s
d)
N
52.
What is the relationship between centripetal force and the mass of an object?
a)
direct
b)
inverse
c)
exponential
d)
inverse squared
53.
Which of the following increase the centripetal force?
a)
Increasing the radius
b)
Increasing the velocity
c)
Decreasing the mass
d)
Decreasing the acceleration
54.
A car with mass m travels around a curve with velocity v. What do you know about the centripetal force if the velocity triples?
a)
Nothing 
b)
The centripetal force triples
c)
the centripetal force multiplies by 9
d)
The centripetal force divides by 3
55.
A car with mass m travels around a curve with velocity v. What do you know about the centripetal force if the radius triples?
a)
9.8?
b)
Force triples
c)
Force divides by 3
d)
Force divides by 9
56.
Calculate the amount of centripetal force it takes for a softball pitcher to rotate a ball with a velocity of 3 m/s if the ball weighs .12 kg and her arm is .65 meters long.
a)
.38
b)
1.23
c)
.55
d)
1.66 N
57.
Name the missing force....
a)
weight force
b)
normal force
c)
frictional force
d)
tension force
58.
Name the missing force...
a)
tension force
b)
frictional force
c)
normal force
d)
spring force
59.
Name the missing force...
a)
frictional force
b)
weight force
c)
thrust
d)
buoyant force
60.
Name the missing force...
a)
applied force
b)
weight force
c)
tension force
d)
drag
61.
Name the missing force...
a)
tension force
b)
gravitational force
c)
normal force
d)
applied force
62.
Name the missing force...
a)
weight force
b)
normal force
c)
applied force
d)
frictional force
63.

A book is at rest on a table. Check all the forces that act on it.

a)

gravity

b)

normal force

c)

applied force

d)

friction

64.

A small child is pulling a wagon to the left, at a constant speed. Check all the forces that are acting on the wagon.

a)

Gravity

b)

Normal Force

c)

Applied Force

d)

Friction

65.

The football is flying upward and to the right. Check all the forces that are acting on it.

a)

Gravity

b)

Normal

c)

Applied

d)

Friction

66.

The hockey puck is sliding across perfectly smooth ice, at a constant speed. Check all the forces that are acting on it.

a)

Gravity

b)

Normal Force

c)

Applied Force

d)

Friction

67.

The boy is pulling and the girl is pushing. The wagon is accelerating to the right. Click all the forces that act on the wagon.

a)

Gravity

b)

Normal

c)

Applied

d)

Friction

68.

Mickey is climbing a rope. What forces are acting on him?

a)

Gravity

b)

Normal Force

c)

Applied Force

d)

Tension

69.
Look at the picture.  Is the force of gravity on the boy a push or a pull? 
a)
Pull
b)
Push
70.

A heavier object will fall to earth faster than a light object (if we ignore air resistance)

a)

True

b)

False