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Worksheets

Final Review

Total questions: 177

Worksheet time: 3hrs 22mins

Name
Class
Date
1.

Density =

a)

Mass ÷ Volume

b)

Volume ÷ Mass

c)

Mass x Volume

d)

Length x Width x Height

2.

Mass =

a)

Density ÷ Volume

b)

Volume ÷ Density

c)

Density x Volume

d)

Length x Width x Height

3.

Volume =

a)

Density ÷ Mass

b)

Mass ÷ Density

c)

Density x Mass

4.

A rock is broken into 5 pieces. Compared to the original rock, one of the pieces has _________ density.

a)

a higher

b)

a lower

c)

the same

5.

What is the density of a block that has a mass of 45.3g and a volume of 171.2 cm3?

a)

0.3 g/cm3

b)

7755.4 g/cm3

c)

3.8 g/cm3

6.

What is the density of a cube with 3.0 cm sides, and has a mass of 13.5 g?

a)

1.5 g/cm3

b)

0.5 g/cm3

c)

4.5 g/cm3

d)

2.0 g/cm3

7.

What is the volume of a rock that has a mass of 452.9 g and a density of 103.4 g/cm3?

a)

4.4 cm3

b)

25.9 cm3

c)

46,829.9 cm3

8.

A piece of plastic has a mass of 35.5 g and a density of 1.1 g/cm3. What is its volume?

a)

39.1 cm3

b)

0.03 cm3

c)

32.3 cm3

9.

Three different samples of the same uniform substance will have the same _______. (Uniform means it is the same throughout.)

a)

volume

b)

shape

c)

density

d)

mass

10.

What is the mass of a rock that has a volume of 71.0 cm3 and a density of 4.6 g/cm3?

a)

326.6 g

b)

15.4 g

c)

0.1 g

11.

A chocolate bar has a volume of 286.1 cm3 and a density of 1.3 g/cm3. What is its mass?

a)

220.1 g

b)

0.005 g

c)

371.9 g

12.

When oil spills in the ocean, the oil floats on top of the water. This is because...

a)

there is less oil than water.

b)

the oil is more dense than water.

c)

the oil is less dense than water.

d)

the oil is cooler than the water.

13.

The diagram below shows a glass jar containing a clear liquid and a floating rock. Which conclusion about the relative density of the rock and the liquid is true?

a)

The rock and the liquid have the same density.

b)

The rock is less dense than the liquid

c)

The rock is more dense than the liquid

14.

If the object is cut in half, the density of each piece will be

a)

greater than that of the original object

b)

the same as that of the original object

c)

less than that of the original object

15.

29.0 mm = ______ m

a)

0.029 m

b)

290.0 m

c)

0.29 m

d)

0.0029 m

16.

0.563 L = _____ mL

a)

5,630.0 mL

b)

5.63 mL

c)

56.3 mL

d)

563.0 mL

17.

34.0 m = _____ mm

a)

340.0 mm

b)

3400.0 mm

c)

0.034 mm

d)

34,000.0 mm

18.

Which measurement is the smallest?

a)

1 mm

b)

0.01 cm

c)

0.001 m

d)

0.0001 km

19.

Place the following metric prefixes in order of smallest to largest:

a)

milli-

b)

deci-

c)

deka-

d)

hecto-

e)

kilo-

1)
2)
3)
4)
5)
20.

Place the metric prefixes in the correct spots of the conversion staircase:

a)

hecto-

b)

centi-

c)

kilo-

d)

deka-

e)

deci-

f)

milli-

1
2
3
4
5
6
1)
2)
3)
4)
5)
6)
21.

Using the conversion chart (metric staircase), as the units move to the left, the decimal place moves to the ____________.

a)

Right

b)

Sometimes to the right, sometimes to the left

c)

Left

d)

The decimal place doesn't change between units

22.

Using the conversion chart, as the units move to the right, the decimal place moves to the ____________.

a)

Right

b)

Sometimes to the right, sometimes to the left

c)

Left

d)

The decimal place doesn't change between units

23.

To do each conversion, you would move the DECIMAL POINT...

a)

How do you convert 50 cm into mm?

1.

ONE place to the RIGHT

b)

How do you convert 5 cm into m?

2.

TWO places to the LEFT

c)

How do you convert 500 mm into m?

3.

THREE places to the LEFT

d)

How do you convert 5 m into cm?

4.

TWO places to the RIGHT

24.

Which unit of measurement is the shortest?

a)

Millimeter

b)

Meter

c)

Kilometer

d)

Centimeter

25.

Which unit of measurement is the longest?

a)

Millimeter

b)

Meter

c)

Kilometer

d)

Centimeter

26.

Match the following tools to what they are used to measure

a)

1.

Mass

b)

2.

Length

c)

3.

Volume

d)

4.

Temperature

27.

What is the best estimate of mass of the lawn mower?

a)

500 grams

b)

22 kilograms

c)

200 grams

d)

100 kilograms

28.

What is the best estimate of mass of the car?

a)

15 grams

b)

2000 kilograms

c)

6000 grams

d)

2 kilograms

29.

What is the best estimate of mass of the clothes dryer?

a)

60 grams

b)

3 grams

c)

60 kilograms

d)

3 kilograms

30.

What is the best estimate of mass of a pen?

a)

500 grams

b)

5000 grams

c)

5 grams

d)

5 kilograms

31.

What is the best estimate of mass of an apple?

a)

200 kilograms

b)

200 grams

c)

5 grams

d)

5 kilograms

32.

What represents the best estimate for the length of the popcorn?

a)

3 centimeters

b)

90 centimeters

c)

2 kilometers

d)

3 millimeters

33.

What represents the best estimate for the length of the lollipop?

a)

10 centimeters

b)

30 centimeters

c)

2 kilometers

d)

30 millimeters

34.

What represents the best estimate for the height of the desk?

a)

70 centimeters

b)

30 centimeters

c)

15 centimeters

d)

2 meters

35.

What represents the best estimate for the height of the Ferris Wheel?

a)

50 kilometers

b)

30 centimeters

c)

5 meters

d)

23 meters

36.

What represents the best estimate for the height of the soda can?

a)

30 centimeters

b)

10 centimeters

c)

3 centimeters

d)

1 meter

37.

What represents the best estimate for the height of a frog?

a)

60 centimeters

b)

4 millimeters

c)

8 centimeters

d)

20 centimeters

38.

Look at the ruler. What is the distance in centimeters (cm) from 0 to A?

​ (a)  

Choose from the below words
15cm
2.9cm
0.5cm
1.5cm
39.

Look at the ruler. What is the distance in millimeters (mm) from 0 to C?

​ (a)  

Choose from the below words
4.2mm
42mm
40.2mm
402mm
40.

What is the measurement given by the triple beam balance?

a)

37581 g

b)

37 g

c)

37.5 g

d)

37.9 g

41.

What is the measurement given by the triple beam balance?

a)

43.0 g

b)

40 g

c)

43 g

d)

40.3 g

42.
What is the volume of the water in this graduated cylinder?
a)
7.6 mL
b)
7.2 mL
c)
6.6 mL
d)
6.8 mL
43.
What is the volume of the water in this graduated cylinder?
a)
8.8 mL
b)
8.6 mL
c)
9.2 mL
d)
9 mL
44.

50 ml of water was added to the graduated cylinder. After we drop in the object, the new water level goes up to 60 ml. What is the volume of the blocks?

a)

8 ml

b)

10 ml

c)

60 ml

d)

5 ml

45.

What is the volume of the ring?

a)

64 ml

b)

68 ml

c)

8 ml

d)

4 ml

46.

Which object has the greatest volume?

a)

The empty one

b)

The button

c)

The nail

d)

The battery

e)

The screw

47.

What is the best estimate of the amount of liquid a spoon holds?

a)

5 liters

b)

500 milliliters

c)

5 milliliters

d)

1 liter

48.

What is the best estimate of the volume of soda in a can?

a)

2 liters

b)

2 milliliters

c)

350 liters

d)

350 milliliters

49.

Which tool do we use to find mass?

a)

b)

c)

d)

50.

Match the term with the correct definition:

a)

Mass

1.

The amount of matter in an object

b)

Volume

2.

The amount of space an object takes up

c)

Temperature

3.

The average kinetic energy of an object

d)

Length

4.

The distance between two points

51.

A study was done to find is different tire treads affect the braking distance of a car.

a)

Manipulated Variable

1.

type of tire treads

b)

Responding Variable

2.

braking distance

c)

Constant

3.

type of car

52.

The time it takes to run a mile depends on the person's running speed.

a)

Manipulated Variable

1.

The person's running speed

b)

Responding Variable

2.

Time it takes the person to run a mile

c)

Constant

3.

The type of path the person runs on

53.

The height of the bean plants depends on the amount of water they receive.

a)

Manipulated Variable

1.

Amount of water the bean plants receive

b)

Responding Variable

2.

The height of the bean plants

c)

Constant

3.

The type of plant

54.

The height of the bean plants depends on the amount of water they receive.

a)

Manipulated Variable

1.

Amount of water the bean plants receive

b)

Responding Variable

2.

The height of the bean plants

c)

Constant

3.

The type of plant

55.

The higher the temperature of air in the oven, the faster a cake will bake.

a)

Manipulated Variable

1.

The temperature of the air in the oven

b)

Responding Variable

2.

How fast the cake bakes

c)

Constant

3.

The type of cake

56.

Lemon trees receiving the most water produced the most lemons

a)

Manipulated variable

1.

The amount of water

b)

Responding variable

2.

The number of lemons

c)

Constant

3.

The amount of sunlight

57.

An investigation found that more bushels of potatoes were produced when the soil was fertilized more.

a)

Manipulated variable

1.

The amount of fertilizer

b)

Responding variable

2.

How many bushels of potatoes produced

c)

Constant

3.

The amount of water

58.

The amount of pollution produced by cars was measure for cars using gasoline containing different amounts of lead

a)

Manipulated variable

1.

The amount of lead

b)

Responding variable

2.

The amount of pollution produced

c)

Constant

3.

The distance the car travelled

59.

Another name for the manipulated variable is

a)

Independent Variable

b)

Dependent Variable

c)

Responding Variable

d)

Constant Variable

60.

Another name for the responding variable is

a)

Dependent variable

b)

Independent Variable

c)

Manipulated Variable

d)

Constant Variable

61.

A student correctly determined the density of two rocks. If the volumes of the two rocks are equal, the rock with the greater density has a

a)

rounder shape

b)

smoother surface

c)

greater mass

d)

smaller size

62.

The data table shows three properties of six different-sized samples of quartz sand. One property of the samples is labeled X. A student used the data for mass and property X to calculate the density of each sand sample.

What property of the samples is represented by X?

a)

weight

b)

density

c)

volume

d)

temperature

63.

The diagram below a rock suspended above an overflow container filled with water up to the overflow spout. A graduated cylinder is positioned next to the container to collect water that comes out of the overflow spout.

Which property of the rock can be directly determined when the rock is placed in the overflow container?

a)

mass

b)

density

c)

volume

d)

temperature

64.

The diagram shows a tall beaker with four different liquids and their densities.

If a ball that has a density of 1.73 g/cm3 is placed in the beaker, where will the ball come to rest?

a)

on top of liquid A

b)

between liquids B and C

c)

between liquids C and D

d)

on the bottom of the beaker

65.

What is the volume of the rock?

a)
10.0 cm3
b)
15.0 cm3
c)
20.0 cm3
d)
25.0 cm3
66.
What units can be used to express density?
a)
g/mL
b)
grams
c)
millimeters
d)
milliliters
67.
Which box has a greater density?  
a)
Box A
b)
Box B
c)

Both boxes have the same density

68.

Label the correct units in the density formula.

a)

Grams

b)

mL

c)

g/mL

1
2
3
1)
2)
3)
69.

Three liquids and two solids are placed in a graduated cylinder. The substances arrange themselves in the cylinder according to their densities. Use the information to identify the liquids and solids in the graduated cylinder. start with the top solid as substance 1, and the top liquid as substance 2, and so on

a)

Gold

b)

Mercury

c)

water

d)

Gasoline

e)

Cork

1)
2)
3)
4)
5)
70.

Which object has the highest density in this picture?

a)

A

b)

B

c)

C

71.

In this image, the VOLUME of A is _____ the volume of B

a)

equal to

b)

greater than

c)

less than

72.

The diagram shows the steps necessary to produce the energy needed to run a hair dryer.

As it moves from location A to location D in the diagram, the energy stored in the coal

a)

is converted to solar energy

b)

reduces the friction in the hair dryer

c)

is recycled

d)

is transformed

73.

The illustration shows an example of energy changing forms.

Which changes in energy form are illustrated in the diagram?

a)

electrical → sound → light and mechanical

b)

sound → mechanical → light and electrical

c)

mechanical → light → sound and electrical

d)

light → electrical → mechanical and sound

74.

The pie chart compares the amounts of energy from different sources used in the United States each year.

Which two energy sources together provide more than 50% of the energy needs of the United States?

a)

nuclear and natural gas

b)

hydropower and oil

c)

oil and coal

d)

natural gas and coal

75.

A television set changes electrical energy to sound and light energy. In this process, some energy is

a)

created

b)

destroyed

c)

changed to matter

d)

changed to heat

76.

The diagram shows a boulder rolling down a hill into a valley and then up the opposite hill.

At which position does the boulder have the greatest kinetic energy?

a)

A

b)

B

c)

C

d)

D

77.

The diagram shows a boulder rolling down a hill into a valley and then up the opposite hill.

At which position does the boulder have the greatest potential energy?

a)

A

b)

B

c)

C

d)

D

78.

A ball flying through the air toward a soccer goal has what kind of energy?

a)

Chemical

b)

Kinetic

c)

Heat

d)

Light

79.

Something moving has _________ energy.

a)

gravitational

b)

no

c)

potential

d)

kinetic

80.

Which is the following is a result of the transfer of energy?

a)

Gravity

b)

Sound

c)

Friction

d)

Matter

81.

What type of energy transformation occurs in a power plant where coal is burnt in order to be converted into electrical power?

a)

potential to kinetic

b)

electrical to sound

c)

chemical to electrical

d)

elastic potential to kinetic

82.

When jumping on a trampoline, mechanical energy is constantly changing back and forth between kinetic and potential energy.

a)

True

b)

False

83.
As mass increases, KE ...
a)
increases
b)
decreases
c)
stays the same
84.

As the velocity of an object decreases, its KE will...

a)

increase

b)

decrease

c)

stay the same

85.

What two factors affect an object's kinetic energy?

a)

area and volume

b)

mass and weight

c)

weight and height

d)

mass and speed

86.

Which is the best example that something has kinetic energy?

a)

a car parked on a steep hill

b)

a tennis ball rolling across the court

c)

a picture hanging on the wall

d)

a piece of coal before it's burned

87.

As an object is dropped at a greater height, it will have ______ kinetic energy.

a)

More

b)

Less

c)

The same

88.

The soccer ball has more ​​ (a)   energy than ​ (b)   energy.

Choose from the below words
kinetic
potential
89.
What kind of energy is in a rock at the edge of a cliff?
a)
Potential
b)
Kinetic
90.
At which point is potential energy greatest?
a)
W
b)
X
c)
Y
d)
Z
91.

Label where the potential energy and the kinetic energy will be the highest.

a)

Highest kinetic energy

b)

Highest potential energy

1
2
1)
2)
92.

The law of Conservation of Energy says________

a)

energy is constantly created

b)

energy can not be created or destroyed instead it changes from one form to another

c)

energy can not change forms

93.

Organize these pictures into the right categories

Categorize the following

Running

Dancing

Hitting a baseball

Throwing a football

Sleeping

Standing

Sitting

Potential Energy
Kinetic Energy
94.

If you want to decrease the kinetic energy, you can

a)

decrease the mass

b)

decrease potential energy

c)

decrease the speed

d)

All of the choices help to decrease kinetic energy

95.
__________ is stored energy. 
a)
Potential
b)
Kinetic
c)
None of the above 
d)
All of the above 
96.
What kind of energy is in a stretched rubber band?
a)
Potential
b)
Kinetic
97.
When a pendulum swings, at which point is kinetic energy highest?
a)
1
b)
2
c)
3
d)
4
98.
When a pendulum swings, at which point is potential energy at its greatest?
a)
1
b)
2
c)
3
d)
4
99.
2. The diagram to the right represents a diver’s motion from the top of a high diving board into a pool of water. At what point does the diver have the greatest kinetic energy and the least potential energy?
a)
1
b)
2
c)
3
d)
4
100.

The unit of measurement measuring potential and kinetic energy...

a)

Joules

b)

Watts

c)

Matter

d)

Newton

101.

An object falling from 50 m will have ______ potential than an object falling from 40 m.

a)

greater

b)

less

c)

equal

d)

lower

102.

The amount of kinetic energy in an object is determined by...

a)

Mass and Speed

b)

Speed and height

c)

Mass and Height

d)

Speed and Velocity

103.

An objects potential energy will increase with...

a)

Mass and Velocity

b)

Mass and Height

c)

Mass and Speed

d)

Speed and time

104.

The diagram shows a spinning water sprinkler. Water comes through a hose and is sprayed by the sprinkler.

Which principle best explains why the sprinkler spins?

a)

Every action has an equal and opposite reaction.

b)

Solid substances are usually more dense than liquid substances.

c)

Energy is released when water condenses.

d)

Most substances expand when heated and contract when cooled.

105.

Which device directly converts chemical energy into electrical energy?

a)

solar-powered calculator

b)

wood-burning stove

c)

battery-powered flashlight

d)

wind-powered sailboat

106.

Which type of energy is transferred by vibrational waves?

a)

nuclear

b)

electromagnetic

c)

chemical

d)

sound

107.

According to Newton's first law of motion, what will happen to the motion of an object when acted upon by an unbalanced force?

a)

The motion of the object changes

b)

The speed and direction of the object change after the unbalanced force becomes balanced

c)

The motion of the object remains unchanged

d)

The speed and direction of the object do not change

108.

While riding a skateboard, Nina ran into a rough patch of pavement, but she thought she could ride right over it. Instead, the skateboard stopped but Nina didn't. Nina kept moving forward due to

a)

inertia

b)

friction

c)

velocity

d)

speed

109.

When a soccer ball is rolling along a grassy field, it does not continue moving forever. What force is acting upon it to change its state?

a)

velocity

b)

inertia

c)

friction

d)

gravity

110.

Newton's first law of motion states that an object at rest stays at rest and an object in motion stays in motion unless acted on by an unbalanced force. This law is also known as the law of

a)

gravity

b)

inertia

c)

momentum

d)

friction

111.

What is the tendency of an object to resist a change in its motion?

a)

gravity

b)

inertia

c)

speed

d)

friction

112.

What force opposes motion whenever two surfaces come into contact?

a)

gravity

b)

inertia

c)

speed

d)

friction

113.

According to Newton's first law of motion, what changes motion?

a)

a balanced force

b)

direction

c)

an unbalanced force

d)

speed

114.

According to Newton's second law, what is the acceleration of an object with a mass of 10 kg and a net force of 30 N?

a)

3 m/s2

b)

20 m/s2

c)

10 m/s2

d)

30 m/s2

115.

The greater the force that is applied to an object of a given mass, the more the object will accelerate.

a)

True

b)

False

116.

Which equation correctly represents Newton's second law of motion?

a)

net force x acceleration = mass

b)

acceleration = net force/mass

c)

velocity = distance/time

d)

net force = acceleration/mass

117.

Tony has a mass of 50 kg and his friend Sam has a mass of 45 kg. If both friends push off on their roller skates with the same force, then which friend will experience greater acceleration?

a)

Tony will have greater acceleration for a given amount of force

b)

Sam will have greater acceleration for a given amount of force

c)

Sam will have greater acceleration due to greater mass

d)

They will have the same acceleration due to the same applied force.

118.

If a net force of 55 N is applied to an object with a mass of 11 kg, then what is its acceleration according to Newton's second law of motion?

a)

44 m/s2

b)

55 m/s2

c)

11 m/s2

d)

5 m/s2

119.

When a bat strikes a ball, the force exerted can send the bat backwards. This is an example of which law of motion?

a)

Newton's First Law

b)

Newton's Second Law

c)

Newton's Third Law

d)

Law of Conservation of Energy

120.

Newton's Third Law refers tot he same type of force acting on different objects.

a)

True

b)

False

121.

If a 60 kg roller skater pushes a 30 kg roller skater with a force of 5 N towards the right, then what would be the amount of force and direction of the force exerted by the 30 kg roller skater?

a)

5 N to the right

b)

0 N

c)

5 N to the left

d)

10 to the left

122.

When you paddle a boat in the water, the force of your paddle will push the water which will apply an equal force back on you.

a)

True

b)

False

123.

The reaction to an action is always

a)

stronger in strength and in the opposite direction to the action

b)

equal in strength and in the same direction as the action

c)

weaker in strength and in the opposite direction to the action

d)

equal in strength and in the opposite direction to the action

124.

According to Newton's Third Law, which of the following correctly completes the statement below?

The reaction to an action is always __________________.

a)

stronger in strength and in the opposite direction

b)

equal in strength and in the same direction

c)

weaker in strength and in the opposite direction

d)

equal in strength and in the opposite direction

125.

Match the following

a)

N

1.

Newton

b)
2.

Newton's 1st Law

c)
3.

Newton's 2nd Law

d)
4.

Newton's 3rd Law

126.

Which of Newton's Laws explains the principle of action and reaction?

a)

First Law

b)

Second Law

c)

Third Law

127.

Two identical bikes have riders of different masses. Which statement below is true?

a)

The rider with the great mass will need to use more force to equal the acceleration of the other rider.

b)

The rider with less mass will accelerate slower

c)

The rider with more mass will accelerate faster

d)

Acceleration will not be affected for either rider

128.

What causes objects to move?

a)

Balanced forces

b)

Unbalanced forces

c)

Zero Gravity

d)

Inertia

129.

A person pushes a bowling ball 10 meters and then pushes a tennis ball 10 meters. Which push requires more force and why?

a)

The bowling ball because it has less acceleration

b)

The tennis ball because it has a greater acceleration

c)

The bowling ball because it has a greater mass

d)

The tennis ball because it has less mass

130.

Speed is how fast an object is moving while velocity is

a)

speed with acceleration

b)

speed with a direction

c)

speed of an object plus the mass

d)

speed of an object plus the gravity

131.
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)
20N 
b)
40N 
c)
10N 
d)
70N
132.
Balanced or Unbalanced?
a)
Balanced 
b)
Unbalanced
133.
What is the net force?
a)
400 N Up
b)
400 N Down
c)
- 400 N Down
d)
800 N Down
134.
What is the net force
a)
10 N
b)
0 N
c)
25 N
d)
1 N
135.
A _____ is a pull or a push.
a)
force
b)
friction
c)
gravity
d)
speed
136.

An object is in motion relative to the _________________________.

a)

Mass

b)

Reference Point

c)

Gravity

d)

Forces and Motion

137.
What is the net force?
a)
20 N 
b)
0 N 
c)
400 N 
d)
40 N 
138.
What is the unit to MEASURE force?
a)
Kilogram
b)
Meter
c)
Pascal
d)
Newton
139.
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.
140.
This is an example of what kind of force?
a)
Balanced Force
b)
Pushing Force
c)
Gravity Force
d)
Unbalanced Force
141.
During which interval is the object speeding up?
a)
A to B
b)
B to C
c)
D to E
d)
E to F
142.
friction is a force that acts 
a)
in the same direction as the motion
b)
opposite to the direction of the motion
c)
opposite to the applied forces
d)
the same direction as the applied force
143.

Match the following

a)

Describing the motion of an object is to describe how far it has moved.

1.

Distance

b)

The distance and direction of an objects change in position from the starting point.

2.

Displacement

c)

The speed of an object and its direction.

3.

Velocity

d)

The rate of change in velocity.

4.

Acceleration

144.

What is the speed of a rocket that travels 9000 meters in 12.12 seconds?

a)

725 m/s

b)

7,425 m/s

c)

742.5 m/s

d)

680 m/s

145.

A student went on a walk, and kept track of their time and distance. The data is displayed in the graph. Which best describes the student’s walk?

a)

The student went up a hill, and then down a hill.

b)

The student walked very quickly at the beginning of the walk, but then slowed down at the end.

c)

The student walked slowly at the beginning of the walk, and faster at the end.

d)

The student walked at a steady pace, and then returned to the starting point.

146.

Which graph represents an object that is decreasing in speed?

a)
b)
c)
d)
147.

This graph shows the motion of a cheetah, a human, and a pig. Which statement describes their movement?

a)

The pig is traveling at a faster speed because it reached 500 meters in a shorter amount of time.

b)

The cheetah, human, and pig all traveled at the same speed because they all reached 500 meters.

c)

The human is traveling at a faster speed because it reached 500 meters in a shorter amount of time.

d)

The cheetah is traveling at a faster speed because it reached 500 meters in a shorter amount of time.

148.
Acceleration is
a)
increasing speed
b)
decreasing speed
c)
changing direction
d)
all of the above
149.

Which person in the diagram is moving the fastest?

a)

A

b)

B

c)

C

d)

D

150.
With unbalanced forces, the object will move in the direction of the _______ force.
a)
larger 
b)
smaller 
c)
equal 
151.

According to the law of conservation of mass, which of the following is a TRUE statement about any chemical reaction?

a)

The total mass of the reactants is greater than the total mass of the products.

b)

The total mass of the reactants is less than the total mass of the products.

c)

The total mass of the reactants equals the total mass of the products.

d)

In a chemical reaction, matter can be created but not destroyed.

152.
Question Image

Match the following

a)

Reactant

Element

1.

2C2

b)

Reactant

Compound

2.

CH4

c)

Product

Compound

3.

CO2

153.
How many elements does PbNO3 have?
a)
2
b)
3
c)
4
d)
5
154.
How many nitrogen atoms does NH3 have?
a)
1
b)
2
c)
3
d)
4
155.

Each substance written to the LEFT of the arrow in a chemical equation is a ____.

a)

reactant

b)

product

c)

precipitate

d)

catalyst

156.

What is a group of atoms bonded together?

a)

products

b)

consumer

c)

molecule

d)

reactants

157.
Which of the following is an example of a chemical reaction?
a)
A marshmallow turning black when heated over a fire
b)
A powder dissolving in water to make lemonade
c)
An ice cube melting into a puddle of water
d)
Salt crystals being crushed into a powder
158.
What happens when chemical bonds break and new bonds form?
a)
a physical change
b)
a chemical reaction
c)
matter is destroyed
d)
surface area increases
159.
When heated, oxygen reacts with copper to form copper oxide:
If this reaction occurs in a sealed container, will the mass of the container and everything in it increase, decrease, or stay the same and why?
a)
The mass will stay the same because the number of each kind of atom stays the same.
b)
The mass will increase because a new kind of molecule is formed.
c)
The mass will decrease because two substances combine to form one substance.
d)
More information is needed to tell if the mass will change.
160.
Identify the reactant(s) and product(s) of the reaction.
a)
All three are reactants and none are products.
b)
Hydrogen and water are the reactants, and oxygen is the product.
c)
Water and oxygen are the reactants, and hydrogen is the product.
d)
Hydrogen and oxygen are the reactants, and water is the product.
161.

What are the reactants in this word equation?

a)

Carbon dioxide and oxygen

b)

Carbon dioxide and water

c)

Oxygen and glucose

d)

Oxygen and water

162.

In a chemical reaction...

a)

New atoms are created

b)

Atoms rearrange

c)

Atoms are destroyed

d)

Nothing Happens

163.

In this chemical reaction zinc is a...

a)

Product

b)

Reactant

c)

Neither

164.

Is the compound in the pink box a Reactant or a Product?

a)

Reactant

b)

Product

165.

What are the reactants in the picture?

a)

2 sodium and 2 chlorine

b)

1 sodium and 1 chlorine

c)

1 sodium and 2 chlorine

166.

How many reactants are in A + B ---> C ?

a)

1

b)

2

c)

3

d)

4

167.
When the candle was lit, a pool of liquid wax formed in the area around the wick, and then spilled over the side and resolidified. Does this observation refer to a physical change or a chemical change? Explain.
a)
A chemical change. The substance was still wax, but it changed to a liquid and then back to a solid.
b)
A physical change. The substance was still wax, but it changed to a liquid and then back to a solid.
c)
A chemical change. The substance changed from a chemical liquid to solid wax.
d)
A physical change. The substance was still wax, but it changed to a solid and then back to a liquid.
168.
The flame from the candle gives off black smoke. Does this statement describe evidence for a physical change or a chemical change? Explain.
a)
A chemical change. The black smoke is evidence that a new substance is not forming which means a chemical change occurred.
b)
A physical change. The black smoke is evidence of the formation of a new substance, which means a chemical change occurred.
c)
A chemical change. The black smoke is evidence of the formation of a new substance, which means a chemical change occurred.
d)
A physical change. The black smoke is evidence of a solid turning into a gas
169.

If reactants' mass is 18g , what is the mass of the reactants ?

a)

15

b)

36

c)

81

d)

18

170.

Where are the reactants written in a chemical equation? (look at the picture)

a)

before the arrow

b)

on top of the arrow

c)

after the arrow

d)

both sides of the arrow

171.

What are the two reactants shown in this chemical equation?

a)
b)
c)
d)
172.

What are the two products shown in this chemical equation?

a)
b)
c)
d)
173.

Where are the products written in a chemical equation? (look at the picture)

a)

before the arrow

b)

on top of the arrow

c)

after the arrow

d)

both sides of the arrow

174.
What happens in ALL chemical changes?
a)
Change in state of matter
b)
A new substance is formed
c)
Bubbles are produced
d)
An explosion
175.
In a reaction A + B ----> C,  reactant A has 5g and product  C has 9g. How many grams does reactant B should have? 
a)
4g
b)
5g
c)
9g
d)
14g
176.
Matter can not be created nor destroyed: it can only be
a)
Destroyed a little bit
b)
Invisible
c)
Transformed, changed
d)
None of the above
177.
Anthony is performing an experiment. He adds 0.25 grams of baking soda to 5 grams of water and stirs. Anthony watches as the baking soda dissolves in the water. If Anthony weighs the water and baking soda solution, what will its mass be?
a)
4.75 grams
b)
5.0 grams
c)
5.25 grams
d)
7.5 grams

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