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Day 3 Review Unit (7-10)

Total questions: 60

Worksheet time: 1hrs 20mins

Name
Class
Date
1.

Which of the following is true?

a)

1. x-rays travel slower than infrared.

b)

Infrared travels slower than x-rays.

c)

Gamma rays are the slowest moving.

d)

Radio waves have the most energy and shortest wavelength.

2.

What part of a sound wave measures LOUDness?

a)

wavelength

b)

magnitude

c)

amplitude

d)

frequency

3.

The picture shows a light ray hitting the surface of a mirror what is going to happen as it strikes?

a)

It is going to absorb

b)

It will reflect back from where it began.

c)

It is reflected at an angleequal to the angle of incident.

d)

It reflects 30 degrees from the angle of incident.

4.

A light wave travels through the air, passes into this glass and then travels back into the air as seen in the picture. Which best describes what is happening.

a)

The light wave is

refracted

b)

The light wave is diffused

c)

The light is reflected.

d)

The light is diffracted.

5.

The region of the Electromagnetic Spectrum where color can be seen is called visible light. Which of the following is correct?

a)

The lowest frequency is red and the highest is violet

b)

The highest is red and the lowest is violet

c)

green has the highest frequency

d)

Yellow has the highest frequency.

6.

A __________ is a substance through which a wave travels.

a)

Medium

b)

Longitudinal wave

c)

Transverse Wave

d)

Wave speed

7.

Mrs. Yarbrough produced many sound waves while playing the piano. Which diagram shows the sound wave that she produced with the LONGEST wavelength?

a)
b)
c)
d)
8.
These high-energy waves are given off by radioactive materials.
a)
Gamma
b)
Microwaves
c)
Radio
d)
Ultraviolet
9.
These waves are used to send signals, including WiFi and text messages.
a)
Gamma
b)
Microwaves
c)
Radio
d)
Ultraviolet
10.
These waves from the sun cause sunburn.
a)
Gamma
b)
Microwaves
c)
Radio
d)
Ultraviolet
11.

Color, texture, hardness, density are examples of

a)

Chemical properties

b)

Biological properties

c)

Physical properties

12.

Properties of matter that cannot be observed just by looking at or touching a substance

a)

Physical Properties

b)

Chemical Properties

c)

Biological Properties

13.

Chemical bond is

a)

A force of attraction between 2 atoms

b)

A force of repulsion between 2 atoms

c)

None of the above

14.

Physical change is

a)

any alteration of the appearance of matter without making it another substance

b)

any alteration of the appearance of matter by making it another substance

c)

None of the above

15.

Melting aluminum cans, dissolving sugar in water, tear paper are examples of

a)

Physical change

b)

Chemical change

c)

Biological change

16.
The phase change from water vapor to liquid water is known as...
a)
evaporation
b)
precipitation
c)
condensation
d)
sublimation
17.
What happens to particles when they are heated?
a)
They speed up and spread out
b)
They slow down and compress
c)
They stop moving
d)
They move closer together and speed up
18.
A gas
a)
has a definite shape but no definite volume
b)
has a definite volume but no definite shape
c)
has fast-moving particles
19.

What is happening to the particles in the substance between points D and E?

a)

Melting

b)

Freezing

c)

Vaporizing

d)

Sublimating

20.

Where on the graph are phase changes taking place?

a)

1

b)

2

c)

3

d)

4

e)

5

21.
a)
Same group
b)
Same period
22.
How did Mendeleev arrange the elements?
a)
alphabetical 
b)
density
c)
melting point
d)
atomic mass
23.
A vertical column is called...
a)
group
b)
tower
c)
period
d)
crew
24.
The horizontal row on the periodic table is called a
a)
group
b)
family
c)
period
d)
atomic number
25.
The atomic number tells you what?
a)
number of electrons
b)
number of protons
c)
number of neutrons
d)
both electrons and protons in an atom.
26.

Isotope

a)

Two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons.

b)

Element on the periodic table.

c)

The center of a cell.

d)

Particle that makes up an atom (protons, electrons, neutrons).

27.

Atomic Number

a)

The number of Atoms in a cell.

b)

The number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table.

c)

The atomic symbol that is on the periodic table.

d)

Electron cloud in an Atom.

28.

Atomic Mass

a)

Average number of different masses

b)

Mass of an atom = to the number of protons and neutrons

c)

1 amu

d)

The SI atomic unit in a cell

29.
What is the atomic number of this atom?
a)
2
b)
4
c)
6
d)
none of the above
30.
What does the nucleus of an atom contain?
a)
Electrons and neutrons
b)
Protons and neutrons
c)
Neutrinos and positrons
d)
Electrons and megatrons
31.

Which element is this?

a)

Nickel

b)

Neon

c)

Sodium

d)

Nitrogen

32.

The innermost energy level has a maximum of how many electrons?

a)

1

b)

2

c)

6

d)

8

33.

What is a valence electron?

a)

Electrons in the first energy shell

b)

Electrons in the second energy shell

c)

Electrons in the outer shell

d)

Total number of electrons

34.
What is the name of this element?
a)
Helium
b)
Hydrogen
c)
Argon
d)
Silver
35.

What element is represented in this Bohr Model?

a)

Carbon

b)

Hydrogen

c)

Aluminum

d)

Lithium

36.
Where is most of the mass in an atom located?
a)
in the nucleus
b)
in the protons
c)
in the neutrons
d)
in the electrons
37.

How many protons does sulfur have?

a)

32

b)

16

c)

48

d)

12

38.

How many electrons does this atom have?

a)

2

b)

4

c)

6

d)

10

39.

Is this a correct dot diagram for fluorine (F)

a)

Yes

b)

No

40.

Is this a correct dot diagram for magnesium (Mg)

a)

Yes

b)

No

41.
a)
element
b)
compound
c)
mixture of elements
d)
mixture of compounds
42.
What type of mixture is this?
a)
heterogeneous 
b)
homogeneous
43.
Sand floating in water, but most of the sand is settled at the bottom this an example of which type of mixture?
a)
A solution
b)
A colloid
c)
A suspension
d)
A compound
44.
Ability to rust is this type of property:
a)
Physical property
b)
Chemical property
45.
Properties that can be observed without trying to change the identity of the substance.
a)
Physical
b)
Chemical
46.

The simplest form of matter containing only one type of atom with its own particular set of properties is called a(n)________.

a)

Element

b)

Compound

c)

Mixture

d)

Atom

47.

How many total atoms are in the molecule SO2?

a)

1

b)

2

c)

3

d)

4

48.
N2 + 2O2 --> N2O5
a)
Balanced
b)
Not Balanced
49.
N2 + 3H2 --> 2NH3
a)
Balanced
b)
Not Balanced
50.

Which of the following is an example of a CHEMICAL change?

a)

Shattering a window with a baseball

b)

Ripping paper into 1,000,000,000 tiny pieces

c)

Rusting an iron bar on a humid day

d)

Melting a block of copper metal

51.

Which of the following is an example of a PHYSICAL change?

a)

Neutralizing vinegar with baking soda

b)

Breaking your iPad with a rock due to school stress

c)

Creating a precipitate by mixing Lead Nitrate and Sodium Iodide

d)

Burning popcorn in the microwave

52.

Which of the following describes the basic structure of single replacement reactions?

a)

A + B --> C

b)

A + B --> AB

c)

A + BC --> AC + B

d)

AB + CD --> AD + CB

53.

What are the products of ALL combustion reactions?

a)

Carbon Dioxide and Water

b)

Smoke and Ash

c)

Fire and Carbon Dioxide

d)

Water and Ash

54.

What type of reaction is this?


2NaHCO3 --> Na2CO3 + H2O + CO2

a)

Single Replacement

b)

Combustion

c)

Decomposition

d)

Synthesis

55.

What type of reaction is this?


2Na + 2H2O --> 2NaOH + H2

a)

Single Replacement

b)

Double Replacement

c)

Synthesis

d)

Decomposition

56.

Which coefficient should be placed in front of Lithium to balance this equation?


AlCl3 + Li --> LiCl + Al

a)

1

b)

2

c)

3

d)

0.00000000000001

57.

Which coefficient should be placed in front of NH3 to balance this equation?


NH3 + H2SO4 --> (NH4)2SO4

a)

1

b)

2

c)

3

d)

1,000,000,000

58.

What type of reaction is this?


CH4 + 2O2 --> 2H2O + CO2

a)

Combustion

b)

Synthesis

c)

Double Replacement

d)

Single Replacement

59.

What type of reaction is this?


Pb(NO3)2 + 2KI --> 2KNO3 + PbI2

a)

Double Replacement

b)

Single Replacement

c)

Synthesis

d)

Decomposition

60.

Which law states that Matter cannot be created or destroyed?

a)

Law of Conservation of Matter

b)

Law of Gravity

c)

Law of Equivalent Exchange

d)

Law of Matter ad Infinitum

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