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2025- 2nd 6 week test chem/phys change & forces

Total questions: 175

Worksheet time: 8hrs 14mins

Name
Class
Date
1.
Calculate the net force of the object in the image shown.
a)
20N
b)
35N
c)
5N
d)
25N
2.
Is this a balanced or unbalance force?
a)
Balanced
b)
Unbalanced
c)
Neither one
d)
Both
3.
Which direction will the object move?
a)
Up
b)
Down
c)
Right
d)
Left
4.
Calculate the net force of the object.
a)
10N
b)
2N
c)
15N
d)
5N
5.
Is this a balanced or unbalanced force?
a)
Balanced
b)
Unbalanced
c)
Neither
d)
Both
6.
Which direction will the object move?
a)
Right
b)
Left
c)
Up
d)
Down
7.
What is the net force of this object?
a)
0N
b)
50N
c)
25N
d)
5N
8.
Is this a balanced or unbalanced force?
a)
Balanced
b)
Unbalanced
c)
Neither
d)
Both
9.
This model shows the forces applied to a box.  However, this model DOES NOT show ________________________.
a)
the forces acting in opposite directions
b)
that the forces are unequal
c)
that student B is pushing harder
d)
the actual amount of the forces
10.
If a force causes an object to move, it's considered a(n) __________________ force.
a)
Balanced
b)
Unbalanced
c)
Massive
d)
Strong
11.
Students are playing tug-of-war. If group B pulls the rope to the right with a force of 400 N and group A pulls the rope to the left with a force of 250 N, what will happen to the ribbon in the middle of the rope?
a)
The ribbon will move to the left and group A will win the tug-of-war.
b)
The ribbon will move to the left and group B will win the tug-of-war.
c)
The ribbon will move to the right and group B will win the tug-of-war.
d)
The ribbon will move to the right and group A will win the tug-of-war.
12.
If a force causes an object to start moving, stop moving, or change direction it's considered a(an)__________________force.
a)
Balanced
b)
Unbalanced
c)
Magnetic
d)
Gravitational
13.
A cyclist traveling at 25 km/hr turns sharply to the left while continuing to move 25 km/hr. This means the forces involved are_____________________.
a)
Balanced, because the cyclist's speed did not change.
b)
Balanced, because he was still moving forward.
c)
Unbalanced, because it's the same bicycle.
d)
Unbalanced, because his direction changed.
14.
The forces represented by the arrows in the diagrams are applied to the four objects that are at rest on a table. Which object is most likely to move to the right?
a)
Object W
b)
Object X
c)
Object Y
d)
Object Z
15.
The forces represented by the arrows in the diagrams are applied to the four objects that are at rest on a table. Which object is most likely to remain in place?
a)
Object W
b)
Object X
c)
Object Y
d)
Object Z
16.
If a force does not cause an object to move, it's considered a(n) __________________ force.
a)
Balanced
b)
Unbalanced
c)
Wimpy
d)
Weak
17.
An airplane is travelling at a constant speed of 540 mph.  Explain the forces at work on the plane.
a)
Unbalanced, because the plane is moving forward not backards
b)
Balanced, because the speed is constant and there is no change in direction
c)
Balanced, because the plane is not falling to a lower altitude
d)
Unbalanced, because the plane is in motion
18.
Imagine a bat swinging with a force of 1200 N, hitting a ball pitched with a force of 400 N. At what net force does the ball move away from the bat?
a)
1600 N
b)
800 N
c)
400 N
d)
Net force of 0 N
19.

These forces are...

a)

Balanced

b)

Unbalanced

20.
Balanced or unbalanced?
a)
balanced
b)
unbalanced
21.
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.
22.

What is motion?

a)

A change in position.

b)

A change in force.

23.

What is speed?

a)

A measure of how fast something moves.

b)

A measure of how you move.

24.
What is the standard unit force is measured in?
a)
Newtons
b)
pounds
c)
grams
d)
meters
25.
What is the net force?
a)
40 N left
b)
0 N Balalnced
c)
400 N right
d)
40 N right
26.
Which could be an example of a balanced force?
a)
An asteroid moving at a constant speed through space 
b)
A car accelerating from a stop sign
c)
A box of dishes falling from a counter 
d)
A rocket taking off 
27.
What is the net force?
a)
10 N
b)
0 N
c)
25 N
d)
1 N
28.

What is true about this picture?

a)

the forces are balanced

b)

the net force is 10N

c)

The net force is 3 N

d)

The net force is 7N

29.
If an object is not moving the forces acting upon it are _____________
a)
unbalanced
b)
weak
c)
balanced
d)
Hulk Smash!
30.

Force can be

a)

Pushes only

b)

Pushes and pulls

c)

Pulls only

31.

A book falls off the desk. What moves the book towards the floor?

a)

mass

b)

gravity

c)

friction

d)

speed

32.

What will happen to the book if no other forces act upon it?

a)

book will stay at rest

b)

mass of the book will increase

c)

book will begin to move

d)

gravity on the book will increase

33.

Mark and Ann were playing kickball. They both kicked the same ball, but noticed that Mark kicked the ball farther than Ann. What most likely caused the difference?

a)

Mark kicked with less force

b)

Mark's kick had less friction

c)

Mark kicked with more force

d)

The ball had less gravity

34.

To reduce friction, you could...

a)

place extra weight on the object that is moving

b)

use a lubricant such as grease

c)

remove wheels to reduce the downward pressure

35.

Gravity is-

a)

A change in position of an object over time.

b)

floating in the air

c)

The force that attracts objects towards the center of the earth.

d)

a push or a pull

36.

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.

37.
What is the FORCE? 
a)
5 N
b)
10 N
c)
400 N
d)
0 N
38.
What is the unit for FORCE? 
a)
N (Newtons)
b)
lbs (pounds)
c)
g (grams)
d)
m/s (meters per second)
39.
The FORCE that PULLS things down or back to EARTH.
a)
Speed
b)
Gravity
40.
The FORCE that PULLS things down or back to EARTH.
a)
Speed
b)
Gravity
41.

What is the Net Force and the direction of the object's movement as a result of the net force?

a)

2N, Right

b)

0N, Left

c)

3N, Right

d)

4N, Left

42.

What is the Net Force and the direction of the object's movement as a result of the net force?

a)

5N, Right

b)

5N, Left

c)

9N, Right

d)

9N, Left

43.

What is the Net Force and the direction of the object's movement as a result of the net force?

a)

8N, Right

b)

8N, Left

c)

0N, Right

d)

0N, No Movement

44.

What is the Net Force and the direction of the object's movement as a result of the net force?

a)

9N, Right

b)

9N, Left

c)

3N, Right

d)

3N, Left

45.

What is the Net Force and the direction of the object's movement as a result of the net force?

a)

1N, Right

b)

1N, Left

c)

9N, Left

d)

9N, Right

46.

What is the Net Force and the direction of the object's movement as a result of the net force?

a)

12N, Right

b)

12N, Left

c)

4N, Left

d)

4N, Right

47.

What is the Net Force and the direction of the object's movement as a result of the net force?

a)

11N, Right

b)

11N, Left

c)

1N, Left

d)

1N, Right

48.

What is the Net Force and the direction of the object's movement as a result of the net force?

a)

15N, Right

b)

7N, Left

c)

1N, Right

d)

4N, Left

49.

What is force?

a)

The rate of an object's motion with direction

b)

The rate of an object's motion

c)

any push or pull

50.

If the sum of forces is 0, the system is:

a)

balanced

b)

unbalanced

51.

What are balanced forces?

a)

Equal forces that don't cause change in an object's motion

b)

The resistance in motion

c)

The total force of an acting object

d)

Unequal forces that cause change in an object's motion

52.

What happens when forces are unbalanced?

a)

It will cause change in the object's motion

b)

It will not cause change in the object's motion

53.

Net Force= the overall (total) force acting on a object

a)

True

b)

False

54.

Newton is the unit for force.

a)

True

b)

False

55.

A bowling ball knocking over pins?

a)

Balanced

b)

Unbalanced

56.

A cookie on a plate?

a)

Balanced

b)

Unbalanced

57.

A book sitting on a shelf?

a)

Balanced

b)

Unbalanced

58.

A book sitting on a shelf?

a)

Balanced

b)

Unbalanced

59.

Pushing a lawnmower across the yard?

a)

Balanced

b)

Unbalanced

60.

for every action there is an equal and opposite reaction

a)

Newton's 2nd Law

b)

transform

c)

mass

d)

Newton's 3rd Law

61.

energy of motion

a)

potential energy

b)

kinetic energy

c)

equilibrium

d)

total energy

62.

the amount of force acting on an object

a)

magnitude

b)

applied force

c)

Newton

63.

the amount of matter in an object

a)

measurement

b)

velocity

c)

distance

d)

mass

64.

force that pulls all objects towards the center of the Earth

a)

unbalanced force

b)

equilibrium

c)

gravity

d)

balanced force

65.

You try to push your laptop across a table but it is not moving. What force might prevent the laptop from sliding?

a)

friction

b)

gravity

c)

magnetism

d)

normal

66.

A force that slows or stops motion when objects are touching.

a)
Friction
b)
Push
c)
Pull
d)
Magnetism
67.

What can be attracted to magnets?

a)
wood
b)
skin
c)
Metals such as iron, nickel and cobalt
d)

plastic

68.
What will happen when these magnets are brought close together?
a)
They will attract each other.
b)
They will repel each other.
c)
Both magnets will turn to the left
d)
Both magnets will turn to the right
69.

Calculate the net force. 

a)
60N, Left 
b)
40N, Right 
c)
0N
d)
60N, Right
70.
What is Newton's Third Law?
a)
Object in motion stays in motion and an object at rest stays at rest unless acted on by a outside force
b)

The acceleration of an object depends on the mass of the object and the size of the net force applied.

c)
For every action there is an equal and opposite reaction
71.

This type of force is a non contact force that pulls objects toward the center.

a)

Normal force

b)

Electrostatic

c)

Magnetic

d)

Gravity

72.

Unbalanced forces cause motion.

a)

true

b)

false

73.

The picture shows the force of magnetic material. There are attractive and repulsive forces at work depending on what poles or charges are presented to each other. Remember likes repel and opposites attract. What type of force is shown in the picture?

a)

Gravity

b)

Magnetism

c)

Friction

d)

Radiation

74.
This picture is an example of what type of force?
a)
Friction
b)
Magnetic
c)
Gravitational
d)
Electric
75.

A measure of how fast something moves or the distance it moves, in a given amount of time.

a)

Motion

b)

Position

c)

Acceleration

d)

Speed

76.

A force that resists motion when 2 surfaces rub together.

a)

Friction

b)

Gravity

c)

Force

d)

Balanced force

77.

When forces are balanced, the net force equals how many newtons?

a)

0

b)

1

c)

2

d)

3

78.
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.
79.
What is the net force?
a)
40 N left
b)
0 N Balalnced
c)
400 N right
d)
40 N right
80.
Which could be an example of a balanced force?
a)
An asteroid moving at a constant speed through space 
b)
A car accelerating from a stop sign
c)
A box of dishes falling from a counter 
d)
A rocket taking off 
81.
With unbalanced forces, the object will move in the direction of the _______ force.
a)
larger 
b)
smaller 
c)
equal 
82.
You and your dad are moving the couch from one side to another. Your dad pushes with a force of 35 N to the right and you push with a force of 25 N right. What is the net force on the couch?
a)
60 N right
b)
10 N left
c)
60 n right
d)
50 N left
83.
What is the net force?
a)
11 N left
b)
11 N right
c)
3 N left
d)
3 N right
84.
What is the net force?
a)
3 N left
b)
3 N right
c)
7 N left
d)
7 N right
85.

Jonny and Patty are pushing against a basketball. Both of them push against the ball on opposite sides with a force of 20 N to keep the ball still. What is the net force?

a)

400 N

b)

24 N

c)

0 N

d)

40 N

86.

the force that opposes motion

a)

mass

b)

weight

c)

friction

d)

speed

87.

Without friction, an object in motion would never stop.

a)

true

b)

false

88.

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

a)

metal

b)

tile

c)

sand paper

d)

denim

89.

Rough surfaces have _________

a)

greater friction

b)

less friction

c)

the same level of friction

90.

When we rub our hands together _________.

a)

frictional force works between them

b)

energy is released

c)

our hands become warm

d)

all off the above

91.

Imagine you decide to jump out of an airplane 🛩

Which force is going to pull you down towards earth

a)

Fluid Friction

b)

Static Friction

c)

Gravity

d)

The wind from the airplane

92.
Newton's Third Law States...
a)
Objects in motion stay in motion and objects at rest stay at rest
b)
Force is equal to mass times acceleration
c)
For each action there is an equal and opposite reaction
93.
An archer shoots an arrow. The action force is the bowstring against the arrow, the reaction force is...
a)
Air resistance against the bow
b)
the arrow's push against the bowstring
c)
the grip of the archer's hand on the bow
94.
According to Newton's Third law the strength or magnitude of forces will be...
a)
smaller
b)
equal
c)
larger
95.

The baseball player wants to hit a homerun. What does he have to do to the force they exert on the ball?

a)

The baseball player will need to apply more force to the bat swinging at the ball

b)

The baseball player will need to apply less force to the bat swinging at the ball

c)

The baseball player should change nothing about his swing

96.

Katniss Everdeen applies 20 N of force back on her bow. What happens to the arrow when she lets go?

a)

The arrow goes backwards

b)

The arrow goes forwards with 20 N

c)

The arrow goes forwards with 30 N

d)

The arrow goes forwards with 0 N

97.

Complete the law:


For every action, there is an ____________ reaction.

a)

equal and opposite

b)

equal

c)

opposite

d)

bigger and better

98.

Complete the statement:


When an object is pushed, it __________________ with an equal and opposite force.

a)

always pushes back

b)

pushes back if it has a larger mass

c)

pushes back it if has a smaller mass

d)

will not push back

99.
Newton's Third Law States...
a)
Objects in motion stay in motion and objects at rest stay at rest
b)
Force is equal to mass times acceleration
c)
For each action there is an equal and opposite reaction
100.
A baseball player bats a ball with a force of 1,000 N. The ball exerts a reaction force (without any additional forces action on it) against the bat of...
a)
Less than 1, 000 N
b)
1,000 N
c)
More than 1,000 N
101.
A rocket pushes exhaust 10, 000 N. Without any other forces acting on the rocket, how much force does the rocket go forward?
a)
15,000 N
b)
1,000 N
c)
10, 000 N
102.
According to Newton's Third law the strength or magnitude of forces will be...
a)
smaller
b)
equal
c)
larger
103.
According to Newton's third law forces come in pairs?
a)
True
b)
False
104.
Which of the following is a sign that a chemical reaction has occurred?
a)
change in shape
b)
melting
c)
formation of a gas
d)
dissolving
105.
Is melting butter for popcorn a chemical or physical change?
a)
chemical
b)
physical
106.
Which of the following is NOT an example of a physical change?
a)
crumpled paper
b)
pencil sharpening
c)
shrunken clothing
d)
rust
107.
A change where one or more new substances are created.
a)
Physical Change 
b)
Chemical Change 
108.
Fizzing, foaming, and burning are all examples of
a)
Chemical change
b)
Physical change
109.
When you break a cracker into pieces it is a...
a)
Chemical change
b)
Physical change
110.
Which of these is a result of a chemical change?
a)
A mixture
b)
A solution
c)
A new substance
d)
Melting or freezing
111.
Ice melting
a)
Chemical Change
b)
Physical Change
112.
Water freezing
a)
Chemical Change
b)
Physical Change
113.
Wood burned in a fireplace
a)
Chemical Change
b)
Physical Change
114.

An object undergoes a physical change when it changes:

a)

color, burning, rusting

b)

shape, form, color

c)

tarnishing, melting, ashes

115.

An object undergoes a chemical change when it changes:

a)

shape, form, state of matter

b)

melting, odor, size

c)

color, burning, rusting

116.

Bubbles quickly appear and continue forming for 20 seconds and there are small amounts of the solid at the bottom of the liquid in the final observation.

a)

physical change

b)

chemical reaction

117.

The temperature of the solution dropped 18 °C and there was no color change.

a)

physical change

b)

chemical reaction

118.
Which of the following indicates a chemical change?
a)
Change in state of matter
b)
Temperature change
c)
Change in size 
d)
Change in shape
119.
Physical or Chemical Change?  Iron rusts
a)
Physical Change
b)
Chemical Change
120.
Bubbles form when two or more substances are combined ...
a)
Chemical Change
b)
Physical Change
121.

Newton’s law states that for every action, there is an ________ reaction.

a)

unequal and opposite

b)

equal and similar

c)

stronger and opposite

d)

equal and opposite

122.

When a small car pushes a big truck, the truck applies an equal and opposite force on the car.

a)

False

b)

True

123.

How is this an example of Newton’s Third law?

a)

Only the ball is using the head

b)

They are both exerting an equal force on each other

c)

Only the head is pushing the ball

124.

Force always come in________

a)

waves

b)

triplets

c)

pairs

125.
A person steps out of the boat and onto the dock.  As the person moves forward onto the dock, the boat moves backward.  Which statement best describes the backward motion of the boat as the person steps forward?
a)
For every action there is an equal and opposite reaction.
b)
Every mass exerts a force on every other mass.
c)
An object at rest tends to stay at rest.
d)
Friction opposes the motion of an object.
126.

What happens to the balloon if the air is released ?

a)

Balloon goes right

b)

Balloon goes up

c)

Balloon goes down

d)

Balloon goes left

127.

A book pushes down on a table with a force of 5N, the table..

a)

Pushes back with a force of 5N

b)

Pushes back with a force less than 5N

c)

Pushes back with a forcec greater than 5N

d)

Does nothing. A table has no force.

128.

According to Newton’s Third Law, when you lean on a wall, which force is greater?

a)

Wall's foce

b)

Your force

c)

Wall's friction

d)

They are equal

129.

When a cannon fires a cannonball we observe the action of the cannonball pushing forwards off of the cannon. Which is the reaction force?

a)

The cannon pushing up on the ground

b)

The cannon pushing backwards off of the cannonball

c)

The cannonball pulling backwards

d)

The cannonball falling forward

130.

This picture shows .............

a)

Newton 2nd law of motion

b)

Newton 3rd law of motion

c)

Newton 1st law of motion

d)

I don't know

131.

Newton’s 3rd law states that for every action, there is an equal and _______ reaction.

a)

balanced

b)

opposite

c)

unbalanced

132.

Forces always occur _______.

a)

in the same direction

b)

alone

c)

in pairs

133.

A rock on the ground weighs 40 N. How much force does the ground exert on the rock?

a)

20 N

b)

0 N

c)

40 N

134.

The bat hits a ball. What is the reaction force?

a)

gravity pulling the ball down

b)

the ball hits the bat

c)

air resistance slowing the ball down

135.

You sit in a chair. You push the chair down. What is the reaction force?

a)

Gravity pushes the chair up.

b)

The chair pushes you down.

c)

The chair pushes you up.

136.

A bug hits a windshield. The force of the bug on the windshield is _______ the force of the windshield on the bug.

a)

greater than

b)

less than

c)

the same as

137.

Based on Newton's third law of motion, when a person on a skateboard throws a heavy concrete block to the north, the person will be pushed to the ___________.

a)

north

b)

south

c)

east

d)

west

138.

What is the definition of percipitate?

a)

A solid that forms in a solution during a chemical reaction.

b)

A substance that evaporates from a solution during a chemical reaction.

c)

A liquid that forms in a solution during a chemical reaction.

d)

A gas that forms in a solution during a chemical reaction.

139.

How can you determine if a percipitate has formed in a solution?

a)

Observe the formation of a solid or cloudy substance at the bottom of the solution.

b)

Heat the solution and observe any color change.

c)

Measure the pH of the solution.

d)

Add more solvent to the solution and observe any change in volume.

140.

A Solid that forms from a solution during a chemical reaction

a)

precipitate

b)

physical change

c)

oxygen

d)

salinity

141.

Which of the following describes a chemical change?

a)

Water goes from liquid to gas when boiling

b)

Ice goes from solid to liquid when melting

c)

Gray iron turns reddish-brown when rusting

d)

Steam loses heat when condensing

142.
A student places a piece of a potato into a container of hydrogen peroxide. One observation the student makes is that bubbles form around the potato. The presence of bubbles might indicate the formation of a new substance because bubbles - 
a)
could show that a gas is forming.
b)
always rise to the top of a liquid. 
c)
are almost always perfectly spherical.
d)
usually burst after a few minutes.
143.
Marie had a beaker with a small amount of baking soda. She added a few drops of pickle juice to the baking soda and observed fizzing and bubbling. Based on her observation, which of these can Marie determine about the new substance formed by mixing the baking soda and pickle juice?
a)
A chemical reaction produced a solid.
b)
A chemical reaction produced a gas.
c)
No chemical reaction took place.
d)
Only a physical change happened.
144.
Sugar is dissolved into Kool Aid. What type of change is this? 
a)
Chemical 
b)
Physical 
c)
Multi
d)
Asystematic 
145.

Students performed multiple investigations at different stations in the classroom.  The data collected is listed in the table.

The observations from which investigations provide evidence that a new substance was formed?

a)

Stations 1, 3, 4, and 5

b)

Stations 2, 5, and 6

c)

Stations 1, 3, and 4

d)

Stations 1, 2, 3, and 4

146.
Which of the following describes a precipitate?
a)
a liquid forms when a block of metal is heated
b)
a solid forms when one liquid is poured into another
c)
a gas forms when a solid is placed in a liquid
d)
bubbles form when an acid is poured on a rock
147.
A clear liquid from a flask is poured into another clear liquid in a beaker. Which of the following results of this procedure would indicate a new substance was formed?
a)
The level of the substance in the beaker is higher after the other liquid is added.
b)
A yellow solid forms and then settles to the bottom of the beaker.
c)
Small white crystals are left behind in the flask that held the first liquid.
d)
The mass of the combined liquids is greater than either original liquid.
148.
Four students performed four different investigations by combining different substances. Which of the observations is most indicative of a chemical reaction?
a)
investigation 1
b)
investigation 2
c)
investigation 3
d)
investigation 4
149.

What is an opposing force?

a)

A force in the same direction with same strength.

b)

A force in an opposite direction with same strength.

150.

Complete the law:


For every action, there is an ____________ reaction.

a)

equal and opposite

b)

equal

c)

opposite

d)

bigger and better

151.

Complete the statement:


When an object is pushed, it __________________ with an equal and opposite force.

a)

always pushes back

b)

pushes back if it has a larger mass

c)

pushes back it if has a smaller mass

d)

will not push back

152.
Newton's Third Law States...
a)
Objects in motion stay in motion and objects at rest stay at rest
b)
Force is equal to mass times acceleration
c)
For each action there is an equal and opposite reaction
153.
An archer shoots an arrow. The action force is the bowstring against the arrow, the reaction force is...
a)
Air resistance against the bow
b)
the arrow's push against the bowstring
c)
the grip of the archer's hand on the bow
154.
A player hits a ball with a bat. The action force is the impact of the bat against the ball. The reaction force is...
a)
The grip of the player's hands on the ball
b)
the air resistance of the ball
c)
the force of the ball against the bat
155.
A player throws a ball. The action force is the player impact on the ball. The reaction force is...
a)
The force of the ball impact on the player
b)
The force of the grip of the ball
c)
The celebration the player is thinking of
156.
A baseball player bats a ball with a force of 1,000 N. The ball exerts a reaction force (without any additional forces action on it) against the bat of...
a)
Less than 1, 000 N
b)
1,000 N
c)
More than 1,000 N
157.
A rocket pushes exhaust 10, 000 N. Without any other forces acting on the rocket, how much force does the rocket go forward?
a)
15,000 N
b)
1,000 N
c)
10, 000 N
158.
According to Newton's Third law the strength or magnitude of forces will be...
a)
smaller
b)
equal
c)
larger
159.
According to Newton's third law forces come in pairs?
a)
True
b)
False
160.

______________________ is the force that resists the motion of two surfaces that are touching.

a)

gravity

b)

friction

c)

force

d)

non-contact

161.

All these are examples of a chemical change EXCEPT....

a)

Rusting metal

b)

Boiling water

c)

Burning paper

d)

Rotting food.

162.

Stacey is baking a cake. She mixes flour, water, eggs, oil, and sugar together in a large bowl to form a mixture. Then, Stacey places the mixture in a cake pan and bakes the cake for 30 minutes.

Which of the following is true about the properties of the cake after it is baked?

a)

The properties of the baked cake are different than the properties of the unbaked mixture.

b)

The properties of the baked cake are the same as the properties of the flour only.

c)

The properties of the baked cake will only change if the cake is baked for less than 15 minutes.

d)

The properties of the baked cake are the same as the properties of the unbaked mixture.

163.

Jolene wants to experiment with sugar cubes. Which of the following causes a sugar cube to only change physically, not chemically?

a)

burning the sugar cube with a match

b)

crushing the sugar cube and dissolving it in water

c)

dehydrating the sugar cube with sulfuric acid

d)

chewing the sugar cube and digesting it

164.

Diane draws a picture on a piece of paper and then folds it into a paper airplane. She throws it at her little brother, and it hits him in the head. He responds by ripping up the paper. Which of the following is an example of a physical change?

a)

ripping up the paper

b)

folding the paper into an airplane

c)

drawing on the paper

d)

 all of these

165.

You put gasoline in your car and the car burns the fuel. Is this a physical or chemical change and why?

a)

Physical change because the car is moving locations.

b)

Physical change because the fuel smells bad.

c)

Chemical change because the fuel is burning.

d)

Chemical change because the fuel is changing shape.

166.

You pick up an ice cream sandwich from the cafeteria and put it in your pocket for dessert. You forget all about the ice cream sandwich until 7th hour. Is this a physical change or chemical change and why?

a)

Physical change because the color has changed.

b)

Physical change because it melted, changing the size & shape.

c)

Chemical change because you walked with it from cafeteria to classroom.

d)

Chemical change because it has melted, changing the size & shape.

167.

You find a nail on the ground in a small puddle of water. Rust has formed on the outside of the nail. Was this a physical or chemical change and why?

a)

physical change because rust formed on the nail.

b)

physical change because the nail is shaped differently

c)

chemical change because the nail is wet.

d)

chemical change because there is a new substance and a color change on the nail.

168.

Newton's Law of Universal Gravitation affects

a)

All objects with mass in the known universe

b)

All objects and empty space in the known universe

c)

Thoughts and Ideas

d)

Only things that are the color red

169.

If one of two objects increases its mass, it _________ the gravitational pull between the two objects

a)

increases

b)

decreases

c)

has no effect on

d)

eliminates

170.

If one of two objects decreases its mass, it _________ the gravitational pull between the two objects

a)

increases

b)

decreases

c)

has no effect on

d)

eliminates

171.

If two objects increase their distance, it _________ the gravitational pull between the two objects

a)

increases

b)

decreases

c)

has no effect on

d)

eliminates

172.

If two objects decreases their distance, it _________ the gravitational pull between the two objects

a)

increases

b)

decreases

c)

has no effect on

d)

eliminates

173.

Which statement about gravity is true?

a)

gravity causes objects to pull towards one another

b)

gravity causes objects to push away from each other

c)

gravity only takes place between planets

d)

the moon doesn't have any gravity

174.

What two things determine the gravity of an object?

a)

mass & weight

b)

mass & distance

c)

density & mass

d)

volume & distance

175.
Which of the following will not change in different gravitational fields?
a)
weight
b)
force
c)
mass
d)
pounds

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