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Physical Science-2nd Semester Exam

Total questions: 131

Worksheet time: 6hrs 26mins

Name
Class
Date
1.

The tendency for a material to oppose the flow of electrons is _____.

a)

current

b)

resistance

c)

conductor

d)

voltage

2.

Items with opposite charges _____ each other.

a)

attract

b)

repel

c)

move

d)

none of the above

3.

Items with like charges _____ each other.

a)

attract

b)

repel

c)

move

d)

none of the above

4.

Clothes clinging together and lightning are examples of _____.

a)

current electricity

b)

circuit electricity

c)

alternating electricity

d)

static electricity

5.

Resistance is measured in a unit called _____.

a)

ampere

b)

ohm

c)

volt

d)

coulomb

6.

The tendency for a material to oppose the flow of electrons is _____.

a)

current

b)

resistance

c)

conductor

d)

voltage

7.

Items with opposite charges _____ each other.

a)

attract

b)

repel

c)

move

d)

none of the above

8.

Items with like charges _____ each other.

a)

attract

b)

repel

c)

move

d)

none of the above

9.

Clothes clinging together and lightning are examples of _____.

a)

current electricity

b)

circuit electricity

c)

alternating electricity

d)

static electricity

10.

Resistance is measured in a unit called _____.

a)

ampere

b)

ohm

c)

volt

d)

coulomb

11.

Electric current is measured in a unit called _____.

a)

ampere

b)

ohm

c)

volt

d)

coulomb

12.

An instrument used to measure electric current is a(n) _____.

a)

Voltmeter

b)

Generator

c)

Ammeter

d)

Transformer

13.

Is the symbol for _____.

a)

Light bulb

b)

Resistor

c)

Battery

d)

Switch

14.

Is the symbol for _____.

a)

Light bulb

b)

Resistor

c)

Battery

d)

Switch

15.

Is the symbol for _____.

a)

Light bulb

b)

Resistor

c)

Battery

d)

Switch

16.

A good conductor is a material that does not allow electricity to flow through it.

a)

True

b)

False

17.

A battery is a source of alternating current.

a)

True

b)

False

18.

In a series circuit, all parts of the circuit are connected in a single path.

a)

True

b)

False

19.

Select the items needed to have a complete circuit.

a)

Energy source (battery)

b)

Wires

c)

Energy user (lightbulb)

d)

Voltmeter

e)

Switch

20.

Which of the following are examples of conductors?

a)

Copper

b)

Plastic

c)

Glass

d)

Aluminum foil

e)

Pencil lead

21.

Which of the following are examples of insulators?

a)

Copper

b)

Plastic

c)

Glass

d)

Aluminum foil

e)

Pencil lead

22.
A battery or other device which provides energy for a circuit
a)
Conductor
b)
Power source
c)
Parallel circuit
d)
Complete circuit
23.
Switch
a)
The part of a circuit which can control whether electricity flows
b)
An electrical force which occurs as electrons are built up in an object
c)
A small device that stores energy in a chemical form
d)
The area of a conductor through which a current is able to move
24.
a)
Series circuit
b)
Incomplete circuit
c)
Parallel circuit
d)
Power source
25.
What is an insulator?
a)
The area of a conductor through which a current is able to move
b)
A material which does not allow electricity to go through it
c)
The amount of devices which are in a circuit
d)
A battery or other device which provides energy for a circuit
26.
The flow of electricity through a conductor
a)
Battery
b)
Current
c)
Static electricity
d)
Switch
27.

A small device that stores energy in a chemical form

a)

Complete circuit

b)

Switch

c)

Resistor

d)

Battery

28.
a)
Power source
b)
Closed circuit
c)
Insulator
d)
Open circuit
29.

What is a power source?

a)

Insulator

b)

A battery or other device which provides energy for a curcuit

c)

Current

d)

Conductor

30.
What is a conductor?
a)
A material that allows electricity to go through it
b)
The area of a conductor through which a current is able to move
c)
A battery or other device which provides energy for a curcuit
d)
When there is only one path for the electricity to flow
31.
Includes wires, a battery, and a device that uses energy. It works
a)
Series circuit
b)
Complete circuit
c)
Pathway
d)
Incomplete circuit
32.
An electrical force which occurs as electrons are built up in an object
a)
Complete circuit
b)
Static electricity
c)
Power source
d)
Load
33.
Includes wires, a battery, and a device that uses energy. However, is does not work
a)
Insulator
b)
Incomplete circuit
c)
Parallel ciruit
d)
Complete circuit
34.
The Ability to do work
a)
Soil 
b)
Energy 
c)
Matter
d)
Math
35.
Energy of moving particles of atoms that make up all  matter. 
a)
Thermal Energy 
b)
Chemical Energy 
c)
Electrical Energy 
d)
Electromagnetic Energy 
36.
Energy stored in atomic bonds that form molecules
a)
Thermal Energy
b)
Chemical Energy
c)
Electrical Energy
d)
Electromagnetic Energy
37.
Energy of electric charges moving through conductors
a)
Electrical Energy
b)
Electromagnetic Energy
c)
Thermal Energy
d)
Chemical Energy
38.
Energy that travels in waves( ex. microwaves, radio waves, energy from the sun)
a)
Chemical Energy
b)
Electrical Energy
c)
Electromagnetic Energy
d)
Thermal Energy
39.
One form of energy changes to another
a)
Energy Transformation
b)
Energy Transfer
40.
Energy stored in the nucleus of an atom, released when protons or neutrons are added to or removed from the nucleus 
a)
Chemical Energy 
b)
Electrical Energy 
c)
Mechanical Energy 
d)
Nuclear Energy 
41.
Energy derived from sources that are continually replenished(* wind, solar, biomass, geothermal, hydropower)
a)
Nonrenewable Energy 
b)
Renewable Energy 
c)
Energy Transformation 
d)
Electromagnetic Energy 
42.
Resources consumed by humans much faster than nature can produce(ex: oil, natural gas) 
a)
Nonrenewable Energy 
b)
Renewable Energy 
c)
Energy Transformation 
d)
Electromagnetic Energy 
43.
Nonrenewable energy source formed from remains of living organisms, , which cause pollution ( coal, natural gas, petroleum) 
a)
Fossil Fuel 
b)
Rocket fuel 
c)
Renewable Energy 
d)
Sugar
44.
Fossil fuel made of mostly carbonized plant matter. 
a)
Petroleum 
b)
Solar Energy 
c)
Natural Gas
d)
Coal 
45.
Fossil fuel consisting of methane that occurs naturally underground
a)
Coal 
b)
Natural Gas
c)
Nuclear 
d)
Petroleum 
46.
Fossil fuel used to produce gasoline and oil 
a)
Coal 
b)
Natural Gas 
c)
Petroleum 
d)
Solar Energy 
47.
Energy harnessed from the sun ( radiant light and heat)
a)
Wind Energy 
b)
Hydropower
c)
Solar Energy 
d)
Nuclear Energy
48.

When gasoline is burned in a car engine, ________ energy is converted into _________ energy.

a)

heat, chemical

b)

chemical, potential

c)

mechanical, chemical

d)

chemical, mechanical

49.

Which example involves the transformation of chemical energy directly into light energy?

a)

a windmill

b)

a glow stick

c)

photosynthesis

d)

a hydroelectric dam

50.

Electrical energy can be transformed into other types of energy. We often experience these changes of energy in our everyday lives. Which example is a transformation from electrical energy to light energy?

a)

motor

b)

flashlight

c)

slow cooker

d)

solar panels

51.

Jane puts some water into an electric kettle and then she connects it to the power source. She observes that after some time, the water inside the kettle heats up and begins to boil. What is happening?

a)

Light energy is transforming into heat.

b)

Heat energy is transforming into electricity.

c)

Electrical energy is transforming into heat energy.

d)

Electrical energy is transforming into light and heat energy.

52.

The rock in the picture is pushed over the edge and it begins to fall. Which type of energy conversion is taking place?

a)

mechanical to heat

b)

sound to mechanical

c)

potential to kinetic

d)

kinetic to potential

53.

Energy can be changed from one form to another. Changes in the form of energy are called energy conversions. Identify which best describes the energy used to pluck guitar strings to make sound.

a)

electricity

b)

electromagnetic

c)

heat

d)

mechanical

54.

A light bulb converts electrical energy into light and ____.

a)

chemical.

b)

electromagnetic.

c)

heat.

d)

nuclear.

55.

How can we increase the gravitational potential energy of the car?

a)

Keep the length of the hill at 50 m but only 5 m tall.

b)

Keep the hill at 10 m tall but increase the length of the hill so that the car has farther to roll.

c)

Take the interior out of the car so that the car has less mass.

d)

Strap a boulder to the car so that it weighs more.

56.

How would you describe the relationship between the mass of a car and its kinetic energy?

a)

As the mass of a car increases, its kinetic energy decreases.

b)

As the mass of a car decreases, its kinetic energy increases.

c)

There is no clear relationship between mass and kinetic energy.

d)

As the mass of a car increases, its kinetic energy increases.

57.

The process by which people walk

a)

requires only a little energy.

b)

is powered by the body’s surplus heat energy.

c)

relies on the conversion of chemical energy from food into mechanical energy by muscles.

d)

relies on the creation of mechanical energy by muscles, which is transferred into heat energy.

58.

The sum of kinetic energy and potential energy within a system is called

a)

thermal energy.

b)

mechanical energy.

c)

chemical energy.

d)

electrical energy.

59.

Which type of energy is converted when gasoline burns in an engine?

a)

elastic potential energy

b)

nuclear potential energy

c)

chemical potential energy

d)

gravitational potential energy

60.

A student needs help completing an energy transfer diagram for a ceiling fan. Which BEST fills in the blanks labeled M and N to describe the transfer of energy?

a)

N: Electrical and M: Potential energy

b)

N: Light energy and M: Electrical energy

c)

N: Electrical energy and M: Kinetic energy

d)

N: Mechanical energy and M: Electrical energy

61.

Electrical energy can be transformed into other types of energy. We often experience this transformation of energy in our everyday lives. The example that represents a transformation from electrical to sound energy is

a)

flashlight.

b)

campfire.

c)

television.

d)

lamp.

62.

One of these items transforms electrical energy into sound. It is

a)

firecracker.

b)

a violin.

c)

a radio.

d)

a drum.

63.

Yesenia wants to bake cookies in her electric oven. The oven will transform electrical energy into ________ energy.

a)

heat

b)

light

c)

motion

d)

sound

64.

Which of following statements is TRUE?

a)

In a radio, sound energy is transformed into electricity energy.

b)

In a microwave oven, electricity is transformed into chemical energy.

c)

In a hair dryer, electrical energy is transformed into light and heat.

d)

In a computer, electrical energy is transformed into sound, light, and heat.

65.

A skateboarder heads

down a smooth, steep course. What graph illustrates the change in kinetic and potential energy during this process?

a)

A

b)

B

c)

C

d)

D

66.

A drawn bow possesses mechanical energy in the form of _______________. After the arrow is released, the energy is transformed into ________________.

a)

potential energy; mechanical energy

b)

elastic potential energy; kinetic energy

c)

gravitational potential energy; kinetic energy

d)

elastic kinetic energy; mechanical kinetic energy

67.

What energy transformations occur in a hydropower dam?

a)

kinetic --> mechanical --> light

b)

mechanical --> sound --> electrical

c)

potential --> mechanical --> electrical

d)

potential --> electrical --> mechanical

68.

The formula AgNO3 represents a compound made of which atoms

a)

1 Ag, 1 N, 1 O

b)

1 Ag, 1 N, 3 O

c)

1 Ag, 3 N, 3 O

d)

3 Ag, 3 N, 3 O

69.

Which is an example of an element?

a)

air

b)

water

c)

sodium

d)

sugar

70.

Which property explains why copper is often used in electrical wiring?

a)

conductivity

b)

density

c)

magnetism

d)

solubility

71.

Which would decrease the rate of a chemical reaction?

a)

increase in concentration

b)

increase in temperature

c)

decrease in surface area

d)

increase in both surface area and concentration

72.

Which is a size-dependent property?

a)

boiling point

b)

conductivity

c)

density

d)

mass

73.

Why is the following chemical equation said to be balanced?

O2 + 2PCl3 --> 2POCl3

a)

There are more reactants than products

b)

There are more products than reactants

c)

The atoms are the same on both sides of the equation

d)

The coefficients are the same on both sides of the equation

74.

The elements sodium (Na) and chlorine (Cl) react and form the compound sodium chloride (NaCl). Which is true about the properties of these substances?

a)

Na and Cl have the same properties

b)

NaCl has the properties of Na and Cl

c)

All the substances have the same properties

d)

The properties of NaCl are different from the properties of Na and Cl

75.

Which describes how mixtures differ from substances?

a)

Mixtures are homogeneous

b)

Mixtures are liquids

c)

Mixtures can be separated physically

d)

Mixtures contain only one kind of atom

76.

Which image is a model for a compound?

a)
b)
c)
d)
77.

Which us a chemical property?

a)

the ability to be compressed

b)

the ability to be stretched into thin wires

c)

the ability to melt at low a temperature

d)

the ability to react with oxygen

78.

You drop a sugar cube into a cup or hot tea. What causes the sugar to disappear in the tea?

a)

it breaks into elements

b)

it evaporates

c)

it melts

d)

it mixes evenly

79.

Which is an example of a substance?

a)

air

b)

lemonade

c)

soil

d)

water

80.

The figure is a model of atoms in a sample at room temperature. Which physical property does this sample have?

a)

it can be poured

b)

it can expand to fill its container

c)

it cannot easily change shape

d)

it has a low boiling point

81.

Which observation is a sign of a chemical change?

a)

bubbles escaping from a carbonated drink

b)

iron filings sticking to a magnet

c)

lights flashing from fireworks

d)

water turning to ice in a freezer

82.

Zinc, a solid metal, reacts with a hydrochloric acid solution. Which will increase the reaction rate?

a)

cutting the zinc into smaller pieces

b)

decreasing the concentration of the acid

c)

lowering the temperature of the zinc

d)

pouring the acid into a larger container

83.

In the figure, what will be the mass of the final solution if the solid dissolves in the water?

a)

5 grams

b)

145 grams

c)

150 grams

d)

155 grams

84.

trail mix is an example of which type of mixture?

a)

homogeneous

b)

heterogeneous

c)

homozygous

d)

heterozygous

85.

Which of the following examples could be classified as elements?

a)

carbon

b)

sugar

c)

steel

d)

salad dressing

e)

neon

86.

Which of the following examples of matter could be classified as compounds?

a)

carbon

b)

sugar

c)

steel

d)

salad dressing

e)

baking soda

87.

Which of the following examples of matter could be classified as mixtures?

a)

carbon

b)

sugar

c)

steel

d)

salad dressing

e)

hydrogen peroxide

88.

In a chemical equation, the formulas to the right of the arrow represent the _____.

a)

reactants

b)

products

c)

mixture

d)

solution

89.

A cup of orange juice weighs 250 g. Three cubes of ice weigh 10 g each. How much does the cup of orange juice weigh after adding the ice?

a)

260 g

b)

240 g

c)

280 g

d)

not enough information

90.

Which of the following is NOT a factor that affects the rate of a chemical reaction?

a)

concentration

b)

pressure

c)

surface area

d)

temperature

91.

A sample of water has a mass of 193 g. Salt is added to the water, and the final solution weighs 238 g. How much salt was added?

a)

138 g

b)

45 g

c)

431 g

d)

not enough information

92.

The ability of an apple to change color when exposed to air is a ______.

a)

physical property

b)

chemical property

c)

physical change

d)

chemical change

93.

Three examples of physical change are _____.

a)

boiling water, a nail rusting, a melting candle

b)

a pond freezing, breaking glass, a burning candle

c)

melting ice, mowing the lawn, carving a statue

d)

applying lipstick, making lemonade, baking bread

94.

The ability of a pond to freeze over in winter is a _____.

a)

physical property

b)

chemical property

c)

physical change

d)

chemical change

95.

The measurement of an object's mass is a _____.

a)

physical change

b)

physical property

c)

chemical change

d)

chemical property

96.

Which of the following is NOT an aspect of density that can be used to separate mixtures?

a)

size independent

b)

attractive force

c)

amount of mass per unit of volume

d)

objects with greater density sink in objects with less density

97.

Which of the following is NOT a possible sign of a chemical change?

a)

a change in state

b)

a change in color

c)

the release of a gas

d)

the release of energy

98.

In a chemical equation, the formulas to the left of the arrow represent the _____.

a)

reactants

b)

products

c)

mixture

d)

solution

99.

Which of the following is NOT an aspect of the state of matter that can be used to separate mixtures?

a)

size independent

b)

whether something is a solid, liquid, or a gas

c)

the ability of one substance to dissolve in another

d)

a liquid can be poured off a solid

100.

When a newspaper is left in direct sunlight for a few days, the paper begins to turn yellow. The yellow color is evidence of a _____.

a)

physical property

b)

chemical property

c)

physical change

d)

chemical change

101.

The amount of substance in a certain volume is the _____.

a)

concentration

b)

pressure

c)

surface area

d)

temperature

102.

Which of the following methods to separate mixtures is NOT an aspect of solubility?

a)

size of the matter

b)

the ability of one substance to dissolve in another

c)

the inability of one substance to dissolve in another

d)

each part of a mixture will boil or melt at a different temperature

103.

When a chunk of dry ice is at room temperature, a cloud of carbon dioxide vapor forms. The carbon dioxide is changing from a _____.

a)

solid to a liquid

b)

solid to a gas

c)

liquid to plasma

d)

liquid to a gas

104.

What charge does a proton have?

a)

positive

b)

negative

c)

neutral

105.

What charge does a neutron have?

a)

positive

b)

negative

c)

neutral

106.

What charge does an electron have?

a)

positive

b)

negative

c)

neutral

107.

There are equal numbers of ___ and ___ in an atom (if it's neutral)

a)

protons and neutrons

b)

protons and electrons

c)

neutrons and electrons

108.

What two particles are in the nucleus of an atom?

a)

protons and electrons

b)

electrons and neutrons

c)

protons and neutrons

109.

How many protons does an atom of Sodium (Na) have?

a)

12

b)

11

c)

23

110.

The atomic number is the number of ____ in the nucleus. It's the element's "identification"!

a)

electrons

b)

neutrons

c)

protons

111.

What particle(s) make up the mass number?

a)

electrons

b)

neutrons

c)

protons

d)

protons and neutrons

112.

What is the mass number of Phosphorous (P)?

a)

15

b)

30

c)

31

d)

16

113.

If an atom's atomic number is 2 and has a mass of 4, how many neutrons does the atom have?

a)

2

b)

4

c)

6

d)

0

114.
A particle that moves around the nucleus is a(n)...
a)
Proton
b)
Neutron
c)
Electron
d)
Quark
115.
In terms of matter, the atom is almost entirely filled with _____
a)
orbiting electrons
b)
charged protons
c)
heavy neutrons
d)
empty space
116.
Of the three subatomic particles, which is the smallest and the lightest?
a)
protons 
b)
neutrons
c)
electrons
d)
They are all equal.
117.
Most of the mass in an atom is made up of _____________________?
a)
protons and electrons
b)
protons and neutrons
c)
neutrons and electrons
d)
electrons and quarks
118.

Which colored particle is the electron?

a)

blue

b)

red

c)

yellow

d)

red and yellow

119.
An atom of boron has a mass number of 12. How many neutrons does it have?
a)
6
b)
7
c)
11
d)
12
120.

An atom has 29 protons, 29 electrons, and 35 neutrons. What is the mass number of the atom?

a)

29

b)

35

c)

64

d)

93

121.
Oxygen has 8 protons. What is oxygen's atomic number?
a)
16
b)
8
c)
15.999
d)
0
122.

Because atoms are neutral, the number of protons is always _______ the number of electrons

a)

greater than

b)

less than

c)

equal to

d)

proportional to

123.

What is the atomic number of this nucleus?

a)

1

b)

3

c)

4

d)

7

124.

What is the atomic number of this atom?

a)

6

b)

5

c)

11

d)

12

125.

What is the mass number of this atom?

a)

6

b)

5

c)

11

d)

12

126.

What is the net charge of this atom?

a)

0

b)

+1

c)

-1

d)

can't be determined

127.

Changing the number of _________ will change the name of the element.

a)

neutrons

b)

protons

c)

electrons

d)

quarks

128.

Changing the number of __________ gives the atom a neutral charge or causes it to take on a positive or negative charge.

a)

neutrons

b)

protons

c)

electrons

d)

quarks

129.

What does the mass number of an atom represent?

a)

The number of protons in the nucleus

b)

The number of neutrons in the nucleus

c)

The total number of protons and neutrons in the nucleus

d)

The number of electrons in the atom

130.

If an atom has 17 protons and 18 neutrons, what is its mass number?

a)

17

b)

18

c)

35

d)

1

131.

Which of the following statements about mass number is correct?

a)

Mass number is always less than the atomic number

b)

Mass number is always equal to the atomic number

c)

Mass number is the sum of protons and neutrons in an atom

d)

Mass number is the number of electrons in an atom

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