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Physical Science: 1st Semester Test Review_2024-25

Total questions: 66

Worksheet time: 33mins

Name
Class
Date
1.

The most common state of matter in the universe is _______.

a)

gas

b)

solid

c)

plasma

d)

liquid

2.

Which of the following is evidence that a physical change has occurred?

a)

Formation of a solid precipitate

b)

Rust

c)

Broken glass

d)

Bubbles

3.

Matter in which the particles are free to move in all directions until they have spread evenly throughout their container is a _______.

a)

gas

b)

solid

c)

liquid

d)

plasma

4.

Which of the following is the reason why atoms of sodium and chlorine attract each other in a salt crystal?

a)

Sodium has a positive charge and chlorine has a negative charge

b)

Both have a positive charge

c)

Both have a negative charge

d)

Sodium has a negative charge and chlorine has a positive charge

5.

How many electrons are needed in the outer energy levels of most atoms for the atom to be chemically stable?

a)

2

b)

6

c)

4

d)

8

6.

Which part of the periodic table indicates the number of energy levels in the electron cloud?

a)

Period

b)

Family

c)

Valence electrons

d)

Group

7.

Which of the following elements would be the least reactive?

a)

Iodine

b)

Silicon

c)

Argon

d)

Silver

8.

Which of the following elements would be the most reactive?

a)

Argon

b)

Iodine

c)

Silicon

d)

Potassium

9.

Mrs. James blends lemons, sugar, and water in a pitcher. She has made a _______.

a)

compound

b)

heterogeneous mixture

c)

substance

d)

homogeneous mixture

10.

A flask containing molecules of gas A and a separate flask containing molecules of gas B are both at the same temperature. Gases A and B must have equal _______.

a)

average kinetic energies

b)

volumes

c)

pressures

d)

masses

11.

The air that you breathe is an example of a(n) _______ solution.

a)

liquid

b)

gaseous

c)

solid

d)

plasma

12.

Three examples of physical changes are sawing wood, crushing a can, and burning a marshmallow. Which of the following is NOT a physical change?

a)

freezing of water, evaporation of gasoline, and rusting of a nail

b)

boiling of water, blowing up a balloon, and melting a candle

c)

burning of gasoline, rotting an egg, and exploding fireworks

d)

rotting an egg, and exploding fireworks

13.

How does an atom of aluminum become an ion?

a)

It gains 3 electrons

b)

It loses 3 neutrons

c)

It gains 3 protons

d)

It loses 3 electrons

14.

The amount of energy needed to change a material from the solid state to the liquid state is the heat of _______.

a)

condensation

b)

vaporization

c)

fusion

d)

evaporation

15.

Hydrogen is in group 1 with lithium, sodium, potassium, rubidium, cesium, and francium because it _______.

a)

Is a metal

b)

Has 1 valence electron

c)

Has 1 energy level

d)

Is a gas

16.

An atom is neutral because

a)

nuclear forces stabilize the charges

b)

the numbers of protons and electrons are equal

c)

neutrons balance the protons and electrons

d)

the numbers of protons and neutrons are equal

17.

Which pair of atoms will combine with each other and form an ionic bond?

a)

C and O

b)

Ca and Mg

c)

Ca and Br

d)

C and H

18.

An unstable nucleus results from too many or too few _______.

a)

radons

b)

electrons

c)

neutrons

d)

protons

19.

Matter that has a definite volume and a definite shape is a _______.

a)

liquid

b)

gas

c)

solid

d)

plasma

20.

The electrons that are lost, gained, or shared in chemical bonds are called _______.

a)

none of the above

b)

chemical electrons

c)

valence electrons

d)

Lewis electrons

21.

Boron, carbon, nitrogen and oxygen are all members of the same _______.

a)

Group

b)

Family

c)

Valence level

d)

Period

22.

Milk, paint, and mayonnaise are all examples of _______.

a)

elements

b)

heterogeneous mixtures

c)

homogeneous mixtures

d)

compounds

23.

Which of the following is an example of a molecule?

a)

H2O

b)

Mg3N2

c)

NaF

d)

all of the above are molecules

24.

Which of the following is not a physical property?

a)

Odor

b)

Reactivity with oxygen

c)

Color

d)

State

25.

Atoms of the same element that have different numbers of neutrons are called

a)

molecules

b)

protons

c)

isotopes

d)

ions

26.

As a sample of matter is heated, its particles _______.

a)

stop moving

b)

are unaffected

c)

move more slowly

d)

move more quickly

27.

What is an atom’s nucleus made of?

a)

protons and electrons

b)

protons only

c)

protons and neutrons

d)

neutrons only

28.

The properties of a compound are _______ the properties of the elements that form it.

a)

derived from

b)

different from

c)

identical to

d)

similar to

29.

Which of the following is a similarity between ionic and covalent bonds?

a)

Both include the gaining and losing of electrons

b)

Both include the sharing of electrons

c)

Both are typically found as solids at room temperature

d)

Both make the elements more stable

30.

An element with 5 protons, 6 neutrons, and 8 electrons has a mass number of

a)

6

b)

8

c)

5

d)

11

31.

The total number of neutrons in the nucleus of any atom is equal to the

a)

mass number of the atom

b)

atomic number minus the mass number

c)

atomic number of the atom

d)

mass number minus the atomic number

32.

The mass of the most common isotope of an element is known based on an element’s

a)

average atomic mass

b)

atomic number

c)

number of electrons

d)

mass number

33.

Which of the following is NOT an example of covalent bonding?

a)

NaF

b)

O2

c)

NH3

d)

H2O

34.

How many electrons are being shared in a triple bond?

a)

8

b)

6

c)

3

d)

12

35.

A regular, repeating arrangement of atoms, ions, or molecules is _______.

a)

A polyatomic ion

b)

A compound

c)

Impossible to break

d)

A crystal

36.

The total number of electrons in the outer shell of a sodium atom is

a)

18

b)

1

c)

2

d)

8

37.

Which statement about the arrangement of the periodic table is not true?

a)

Rare earth elements are in the first column on the left

b)

Noble gases are in the group farthest to the right

c)

Transition metals are in the center of the periodic table

d)

Metals are found on the left side of the periodic table

38.

Which particles determine the atomic number of an element?

a)

Neutrons only

b)

Protons and electrons

c)

Neutrons and protons

d)

Protons only

39.

CaCO3 is an example of which type of matter?

a)

Heterogeneous mixture

b)

Compound

c)

Element

d)

Homogeneous mixture

40.

Two different isotopes of an element have the same _______.

a)

numbers of neutrons

b)

nothing is the same about them

c)

numbers of protons

d)

mass numbers

41.

Which of the following is a transition metal?

a)

Nickel

b)

Calcium

c)

Aluminum

d)

Tellurium

42.

_______ is another name for a homogeneous mixture.

a)

Liquid

b)

Suspension

c)

Substance

d)

Solution

43.

What is the correct electron arrangement for sulfur? (Hint: think about electron shells/energy levels!)

a)

2-8-8

b)

2-8-4

c)

2-8-6

d)

4-6-2

44.

How many electrons are shared within a single bond?

a)

4

b)

1

c)

2

d)

0

45.

The farther an electron is from the nucleus, the more _______ it has.

a)

energy

b)

charge

c)

mass

d)

size

46.

The amount of energy needed to change a material from a liquid to a gas is the heat of _______.

a)

condensation

b)

evaporation

c)

vaporization

d)

fusion

47.

The maximum number of electrons that can occupy the 2nd shell of an atom of magnesium is

a)

2

b)

18

c)

1

d)

8

48.

What is the oxidation number of oxygen in most compounds?

a)

-2

b)

8

c)

6

d)

0

49.

Which atoms are most likely to form covalent bonds?

a)

metal atoms that share electrons

b)

metal atoms that share protons

c)

nonmetal atoms that share protons

d)

nonmetal atoms that share electrons

50.

Which term best describes when particles escape from the surface of a liquid and become gaseous?

a)

sublimation

b)

evaporation

c)

deposition

d)

vaporization

51.
The color of ink is a _______.
a)
physical change
b)
chemical property
c)
physical property
d)
chemical change
52.
At room temperature, most metals are _______.
a)
plasma
b)
solids
c)
gases
d)
liquids
53.
Atoms of elements in the same group of the periodic table share the same _______.
a)
number of energy levels
b)
number of valence electrons
c)
atomic masses
d)
atomic numbers
54.
Which of the following elements would be the best conductor of electricity?
a)
Argon
b)
Silver
c)
Iodine
d)
Silicon
55.
The particles in a liquid are usually _______.
a)
closer together and lower energy than in a gas
b)
closer together and lower energy than in a solid
c)
farther apart and lower in energy than in a solid
d)
farther apart and higher in energy than in a gas
56.
A type of matter formed by chemically joining two or more elements is known as a _______.
a)
colloid
b)
compound
c)
solution
d)
suspension
57.
Which formula represents a substance that contains covalent bonds?
a)
LiCl
b)
CaCl2
c)
K2O
d)
CO2
58.
The chemical bond formed when two atoms share electrons is called a(n) _______.
a)
Electron bond
b)
Metallic bond
c)
Covalent bond
d)
Ionic bond
59.
When two or more substances are physically combined, the result is a(n) _______.
a)
compound
b)
mixture
c)
element
d)
chemical change
60.
Which element is most likely to gain electrons in a chemical reaction?
a)
Ca
b)
Kr
c)
K
d)
Br
61.
In which phase of matter are the molecules of the substance farthest apart from each other?
a)
crystal
b)
gas
c)
liquid
d)
solid
62.
The Law of Conservation of Mass states
a)
Mass is always lost during a chemical change.
b)
Mass is not lost or created during a chemical change.
c)
Mass is always added during a chemical change.
d)
Mass never stays constant.
63.
An element with 5 protons, 6 neutrons, and 8 electrons has an atomic number of
a)
5
b)
6
c)
11
d)
8
64.
Which of the following is the correct name for a compound between Phosphorous and Chlorine?
a)
Phosphorous (III) chloride
b)
Phosphorous chlorine
c)
Phosphorous trichloride
d)
Phosphorous chloride
65.
Which of the following liquids would be the most viscous?
a)
water
b)
soda
c)
syrup
d)
lemonade
66.
Hydrogen, gold, and iron are all examples of _______.
a)
elements
b)
compounds
c)
heterogeneous mixtures
d)
homogeneous mixtures

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