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8th grade Physical Science Milestone review Part 1

Total questions: 103

Worksheet time: 1hrs 11mins

Name
Class
Date
1.

An electromagnet can be made with a coil of wire around a nail if

a)

the wire is magnetized by a compass

b)

the wire has a current running through it

c)

the wire is touching 2 magnet

d)

the nail is touching a battery on the anode

2.

The greater the number of windings (the number of times it is wrapped around) in an electromagnet's coil

a)

the stronger the magnet is

b)

the less the magnet will pick up

c)

the more current it takes to create the electromagnet

d)

the slower the compass needle moves to the wire

3.

A compass moves to point to an wire with current running in it because

a)

the compass is attracted to the metal wire itself

b)

a compass is used to detect current

c)

the wire has a magnetic field around it because of the moving electrons

d)

the compass moves to point to the batteries

4.

The rotating part of an electrical motor.

a)

brushes

b)

magnet

c)

commutator

d)

armature

5.

Any material that attracts iron and materials that contain iron.

a)

armature

b)

brushes

c)

magnet

d)

electric motor

6.

A coil of wire that produces a magnetic field when carrying an electric current

a)

electromagnet

b)

solenoid

c)

galvanometer

d)

commutator

7.

a coil that has a soft iron core and that acts as a magnet when an electric current is in the coil

a)

electromagnet

b)

solenoid

c)

transformer

d)

motor

8.

Device that uses electromagnetic induction to change the voltage of electric current.

a)

thermometer

b)

galvanometer

c)

electric transformer

d)

electric motor

9.

It opens or close the electric circuit.

a)

switch

b)

light bulb

c)

wire

d)

battery

10.

Name the symbol in the picture

a)

battery

b)

switch

c)

light bulb

d)

wire

11.

What type of circuit is shown in the picture?

a)

open circuit

b)

closed circuit

c)

light bulb

d)

wire

12.

What type of circuit is shown in the picture?

a)

open circuit

b)

closed circuit

c)

light bulb

d)

wire

13.
If you replace the paper clip with a plastic spoon, what happens?
a)
The bulb doesn't light
b)
The bulb is dimmer
c)
The wires get hot
d)
There is no change
14.
A series circuit has ____ path(s) that the electric current can take. 
a)
One
b)
Two 
c)
Three 
d)
Four
15.
In a parallel circuit, if one connection is broken, all of the connections stop working.
a)
True
b)
False
16.
An object through which electrons can easily flow is called a(n) ___________.
a)
Conductor
b)
Insulator
17.
What kind of circuit is this?
a)
series
b)
parallel
18.
What kind of circuit is this?
a)
Series
b)
Consecutive
c)
Parallel
d)
Training
19.
The picture shows an electrical circuit. This circuit is a series circuit because: 
a)
It has 3 light bulbs.
b)
The same current flows through all three light bulbs.
c)
It uses a single battery.
d)
The electrical current has more than one path to flow through
20.
What is a switch's function in a circuit?
a)
to make the current hotter or colder
b)
turn on and off the flow of current
c)
the pathway that current flows
d)
to add more power to the circuit
21.

Why electrical wiring usually are covered with a layer of plastic?

a)

To make it look pretty

b)

To help electricity flow along the wire

c)

To make it safe

d)

To add more energy

22.

Why is electrical wiring usually made from copper?

a)

Because copper is shiny

b)

Because copper conducts electricity

c)

Because copper is not magnetic

d)

Because copper insulate electricity

23.

1. Which switch or switches must be closed to make the lamps light?

a)

Only switch 1

b)

Only switch 1

c)

Switches 1 and 2

d)

Switches 1 , 2 and 3

24.

Tammy makes a complete simple circuit with one bulb and three batteries. The bulb lights for an instant and then goes out. Why?

a)

Too much electricity flows through the bulb's filament

b)

Not enough electricity flows around the circuit

c)

The batteries are flat

d)

The batteries are not good

25.

If lamp 2 is unscrewed from its holder, what will happen to lamp1?

a)

It will stay lit

b)

It will go out

c)

It will get dimmer

d)

It will dissapear

26.
Referring to the table, what is the relative mass of a proton?
a)
10
b)
1
c)
0.1
d)
0.01
27.
Referring to the table, what is the relative mass of an electron?
a)
5
b)
1
c)
0.5
d)
0.0005
28.
Referring to the table, what is the relative charge of an electron?
a)
+1
b)
0
c)
-1
d)
-0.5
29.
Referring to the table, what is the relative charge of a neutron?
a)
+1
b)
0
c)
-1
d)
-0.5
30.
Referring to the table, what is the relative charge of a proton?
a)
+1
b)
0
c)
-1
d)
-0.5
31.
The number in the upper corner of an element tile (7 for nitrogen) is called _____
a)
the proton number
b)
the atomic number
c)
the electron number
d)
the mass number
32.
For a given element, the atomic number indicates the number of _____
a)
protons in the nucleus
b)
neutron in the nucleus
c)
electrons in the atom
d)
nucleons in the atom
33.
If an atom contains exactly three protons, then it's an atom of _____
a)
lithium
b)
gold
c)
nitrogen
d)
carbon
34.
For an atom to be electrically neutral, it must contain the same number of _____
a)
protons and neutrons
b)
neutrons and electrons
c)
protons and electrons
d)
nucleons and electrons
35.
The sum of the number of protons and the number of neutrons is called the _____
a)
atomic number
b)
mass number
c)
isotope number
d)
average weight
36.
The middle of the atom, which contains protons and neutrons, is called _____
a)
the shell
b)
the nucleus
c)
the cell
d)
the control center
37.
The nucleus contains _____
a)
only protons
b)
protons and neutrons
c)
protons and electrons
d)
electrons and neutrons
38.
In the Bohr model of the atom, electrons can only be in certain _____
a)
shells
b)
nuclei
c)
frames
d)
circles
39.
In the Bohr model of the atom, what is the maximum number of electrons in the first shell?
a)
1
b)
2
c)
6
d)
8
40.
In the Bohr model of the atom, what is the maximum number of electrons in the second shell?
a)
2
b)
6
c)
8
d)
18
41.
How many Protons+Neutrons are in one atom of Lithium?
a)
6.941
b)
7
c)
3
d)
6
42.
How many Neutrons are in one atom of Lithium?
a)
6.941
b)
7
c)
3
d)
4
43.
How many Protons are in one atom of Lithium?
a)
3
b)
6
c)
7
d)
6.941
44.
How many Electrons are in one atom of Lithium?
a)
3
b)
6
c)
7
d)
6.941
45.
How many electrons does this picture show?
a)
4
b)
5
c)
6
d)
3
46.
In this state of matter, there is a strong attraction between molecules and they cannot break away from each other. 
a)
solid
b)
liquid
c)
gas
47.
In this state of matter, the molecules can move around each other, but cannot break the force of attraction between them.
a)
liquid
b)
gas
c)
solid
48.

In this state of matter, the molecules have enough energy to completely separate from each other.

a)

gas

b)

solid

c)

liquid

49.
When water beads on the outside of a cold glass of water.
a)
vaperization
b)
condensation
c)
melting
d)
freezing 
50.
Changes in a materials state of matter 
a)
physical property
b)
chemical property
51.
Solvent
a)
the substance that dissolves in another substance
b)
the substance in which another substance dissolves
52.
Solute
a)
the substance that dissolves in another substance
b)
the substance in which another substance dissolves
53.
When a scoop of ice cream drips down the side of the cone.
a)
freezing 
b)
vaporization
c)
melting
d)
condensation
54.
When dripping water turns into icicles. 
a)
melting
b)
freezing
c)
vaporization
d)
condensation 
55.
When boiling water creates steam.
a)
condensation
b)
melting 
c)
freezing
d)
vaporization
56.

When a gas turns straight to solid.

a)

sublimation

b)

melting

c)

deposition

d)

evaporation

57.

When a solid changes straight to a gas.

a)

condensation

b)

sublimation

c)

deposition

d)

freezing

58.
As particles are exposed to warmer temperatures they __________
a)
speed up
b)
slow down
c)
stay the same
d)
vibrate
59.
As particles are exposed to colder temperatures they _____
a)
speed up
b)
slow down
c)
stay the same
d)
become ions
60.
At higher temperatures
a)
particles in an object have less energy
b)
particles in an object move faster
c)
a gas contracts
61.
What happens when my glass of water is sitting in the sun and disappears into a gas?
a)
evaporation
b)
burning
c)
melting
d)
freezing
62.

What state of matter?

a)

Solid

b)

Liquid

c)

Gas

d)

Plasma!!!

63.

What state of matter?

a)

Solid

b)

Liquid

c)

Gas

64.

What state of matter?

a)

Solid

b)

Liquid

c)

Gas

65.

Which process could cause a material to change state from gas to liquid?

a)

Adding heat

b)

Adding energy

c)

Removing particles

d)

Removing energy

66.
If the tops were removed from the cylinders, the following would happen:
a)
The solid would fly out of the container
b)
The liquid would fly out of the container.
c)
The gas would fly out of the container.
d)
They ALL would fly out of the container.
67.

Physical properties....

a)

change the matter when studied

b)

can be observed and measured without changing the matter being studied

c)

include the ability to burn and rust

d)

are useless unless studied in a lab

68.

______________________ can only be recognized when substances react or do not react chemically with one another.

a)

Physical properties

b)

Chemical properties

c)

Flammable properties

d)

Colorful properties

69.

Flammability means the ability to _______ and is a _________ property.

a)

melt; chemical

b)

rust; physical

c)

change; physical

d)

burn; chemical

70.
Which of the following is not a chemical property? 
a)
rusting 
b)
boiling 
c)
rotting 
d)
burning 
71.
Which one of these is a chemical property?
a)
melting point
b)
boiling point
c)
color
d)
flammability
72.
Which is an example of a physical property?
a)
ability to react with acid
b)
 state of matter
c)
flammability
d)
ability to react with oxygen
73.

All of the following are examples of physical properties EXCEPT

a)

Density

b)

Heat conductivity

c)

pH (acidic or basic)

d)

Boiling point

74.

Which of the following is a chemical property of water?

a)

Reacts with pure sodium

b)

Boils at 100 oC

c)

Is liquid at room temperature

d)

Has a density of 1 gm/mL

75.

Choose the one that is a chemical property

a)

Magnetism

b)

Size

c)

Color

d)

Reactivity with water

76.

What is the outcome of observing a chemical property?

a)

Nothing

b)

A new substance is formed with different properties

c)

NaCl

d)

A rise in thermal conductivity

77.
Which line segment demonstrates vaporization occurring?
a)
B-C
b)
C-D
c)
D-E
d)
E-F
78.
A substance's heating curve is shown in the graph.  What is its boiling point?
a)
100 C
b)
60 C
c)
80 C
d)
20 C
79.

What state/phase is the object likely from points A to B?

a)

Solid

b)

Liquid

c)

Gas

d)

Plasma

80.

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

a)

Melting

b)

Freezing

c)

Vaporizing

d)

Sublimating

81.

Is the substance gaining or losing energy?

a)

Gaining

b)

Losing

82.

Use the graph below to answer this question. What state of matter would the substance be at point F?

a)

solid

b)

liquid

c)

gas

83.

Use the graph below to answer this question. Which point on the graph represents the boiling point?

a)

B

b)

C

c)

D

d)

E

84.

Use the graph below to answer this question. At which point is the substance a solid?

a)

A

b)

C

c)

E

d)

F

85.

Use the graph below to answer this question. Which phase change is taking place if the substance is losing energy from point C to point B?

a)

melting

b)

freezing

c)

evaporation

d)

condensation

86.

What is happening to the particles in the substance between points A and B?

a)

Melting

b)

Freezing

c)

Speeding Up

d)

Slowing Down

87.
At what temperature is this substance melting?
a)
50C
b)
100C
c)
0C
88.
How long does it take this substance to change from a liquid to a gas?
a)
1 minute
b)
2 minutes
c)
10 minutes
d)
15 minutes
89.

This mixture is homogeneous or heterogeneous

a)

a- Homogeneous

b)

b- Heterogeneous

90.

What's the best to define a homogeneous mixtures?

a)

a- We can not distinguish their components at first sight

b)

b- We can distinguish their components at first sight

91.

Which method can you use to separate sand and iron filings?

a)

Distillation

b)

Magnetism

c)

Filtration

d)

Evaporation

92.
What type of mixture is this?
a)
homogenous mixture
b)
chemical
c)
heterogeneous mixture 
d)
solid mix
93.

Oxygen

a)

pure substance

b)

homogeneous mixture

c)

compound

d)

heterogeneous mixture

94.

Substances that are made up of ONLY one type of atom (element) or compound.

a)

Colloid

b)

Heterogeneous mixture

c)

Pure substance

d)

Suspension

e)

Homogeneous mixture

95.

A _________ is made up of two or more substances that are together in the same place but ARE NOT chemically combined.

a)

Pure substance

b)

Mixture

c)

Solution

d)

Suspension

96.

Identify which images are PURE SUBSTANCES! (Check all that apply) : )

a)
b)
c)
d)
e)
97.

Solutions are ___________ mixtures.

a)

Solid

b)

Homogenous

c)

Heterogeneous

d)

Gas

98.

Suspensions are ___________ mixtures.

a)

Homogenous

b)

Solid

c)

Common

d)

Heterogeneous

99.

___________ are mixtures with large particles. The particles suspend in the substance and settle/float or can be filtered out of the mixture.

a)

Pure substances

b)

Suspensions

c)

Solutions

d)

Colloids

100.

Solubility is __________________________________.

a)

the amount of solute that can be dissolved by the solution

b)

the amount of solvent that can be dissolved by the solute.

c)

the amount of solute that can be dissolved by the solvent.

101.

In a SOLUTION, the ___________ is the one doing the dissolving.

a)

Solubility

b)

Solvent

c)

Solute

d)

Solution

102.

How you would separate a saltwater solution which the water is collected?

a)

Filtration – using filter paper

b)

Distillation – vapor is collected

c)

Evaporation – solution is boiled and remains are collected

d)

Sieve – sifting (through a strainer)

e)

Magnetism – separating using a magnet

103.

In a SOLUTION, the ___________ is the substance to be dissolved.

a)

Solubility

b)

Solvent

c)

Solute

d)

Solution

e)

Suspension

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