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8th grade topics SOL review

Total questions: 56

Worksheet time: 1hrs 8mins

Name
Class
Date
1.
The pot on the stove burner is an example of?
a)
Conduction
b)
Convection
c)
Radiation
2.
Which phase change happens when gas turns to liquid?
a)
Freezing
b)
Melting
c)
Boiling
d)
Condensing
3.
Which substance is the gas?
a)
A
b)
B
c)
C
4.
Which is the following,a example of a Chemical Change?
a)
Nail Becoming Rusted
b)
Paper Getting Soaked
c)
Clothes Getting Ripped/Wet
d)
Ripping Paper
5.
A change in phase
a)
Chemical
b)
Physical
6.
In the following equation, what are the products?
HCl + Zn → H2 + ZnCl2
a)
HCl + Zn
b)
H2 + ZnCl2
c)
Zn → H2
d)
the stuff on the outside
7.
What is the volume of the water in this graduated cylinder?
a)
20 mL
b)
21 mL
c)
21.5 mL
d)
22 mL
8.
Which of the following is not correct about the pH scale?
a)
pH less than 7 is acid
b)
pH of 7.0 exactly is neutral
c)
pH of 2 is stronger acid than pH of 5
d)
pH of 8 is stronger base than pH of 10
9.
How many H atoms are there in the formula below?
H2C4H4
a)
2
b)
4
c)
6
d)
8
10.
What number could you put in the blank to balance the equation below?
N2  +  ___ H2  -->  2NH3
a)
1
b)
2
c)
3
d)
4
11.
What is the missing mass in the equation below?
HCl  +  NaOH  -->   H2O   +  NaCl
20g   +   30g    -->   25g   +     ?
a)
50g
b)
75g
c)
25g
d)
55g
12.
Using the graph, how many grams of copper sulfate will dissolve at 40oCelsius?
a)
30 grams
b)
40 grams
c)
20 grams
d)
50 grams
13.
What is the volume of the irregular shaped object in the picture?
a)
50 mL
b)
100 mL
c)
300 mL
d)
550 mL 
14.
What is the density of this box, if the mass is 6 grams?  
remember d= m/v
v = l*w*h
a)
4 g/cm3
b)
2 g/cm3
c)
0.5 g/cm3
d)
0.25 g/cm3
15.
The faster molecules move, 
a)
the higher the temperature
b)
the less temperature
c)
the same temperature
d)
I don't know
16.
What is the temperature of absolute zero measured in degrees Celsius? 
a)
-373 degrees Celsius
b)
-273 degrees Celsius
c)
-173 degrees Celsius
d)
-73 degrees Celsius
17.

Select the four most common elements on Earth

a)

Carbon

b)

Nitrogen

c)

Helium

d)

Hydrogen

e)

Oxygen

18.
Which of the following is not a compound?
a)
HCl
b)
Cl
c)
NaCl
d)
CO2
19.
A compound is a molecule consists of 2 or more ________.
a)
cells
b)
atoms
c)
elements
d)
mixtures
20.

How many Oxygen (O) atoms are in a molecule of 2Ca(CO3)2 ?

a)

3

b)

6

c)

12

d)

24

21.
According to the Law of Conservation of Energy, when energy changes from one form to another form, the total energy of that system ---
a)
Increases
b)
Decreases
c)
Stays the same
d)
Alternates
22.
At which point does the skier have the most kinetic energy?
a)
I
b)
II
c)
III
d)
IV
23.
Which type of energy change is pictured?
a)
Kinetic energy to potential energy
b)
Potential energy to kinetic energy
c)
Chemical energy to thermal energy
d)
Radiant energy to thermal energy
24.
What type of circuit is show in the image?
a)
Series Circuit
b)
Parallel Circuit
25.
What is the name of this pictured device that uses fire to heat water, create steam, turn a turbine which causes a magnet to turn in a coil of wires.
a)
Generator
b)
Motor
c)
Electromagnet
d)
Static electricity
26.
Something that takes up space and has mass.
a)
volume
b)
matter
c)
mass
d)
density
27.
What is the mass on this triple beam?
a)
270g
b)
202g
c)
273g
28.
Sound tends to travel fastest through which medium? 
a)
Solid
b)
Liquid
c)
Gas
29.
Sound waves require a medium through which to travel.
a)
True
b)
False
30.
Why do we see the lightening before we hear the crack of thunder?
a)
Because light travels faster than sound
b)
Because Sound travels faster than light
c)
Because sound and light both travel at the same speed
31.
Which wave has the greatest amplitude?
a)
The blue wave
b)
The red wave
32.
When the white light hits a new medium, it is bending as it goes through.  What is this called?
a)
Reflection
b)
Refraction
c)
Diffraction
d)
Absorption
33.
Which picture best shows the law of reflection?
a)
A
b)
B
c)
C
d)
D
34.
What technology uses sound waves to measure the distance between objects under water?
a)
Lasers
b)
Sonar
c)
Radio
d)
Microwave
35.
It is the part of the longitudinal wave where the particles are spread out.  Area B on the picture. 
a)
Compression
b)
Rarefaction
c)
Wavelength
d)
Crest
36.
It is the part of the longitudinal wave where the particles are pressed together.  Area A on the picture. 
a)
Compression
b)
Rarefaction
c)
Wavelength
d)
Crest
37.
Sound waves are _______________
a)
Transverse waves
b)
Longitudinal waves
c)
Circular waves
d)
Seismic waves
38.
Sound waves require ______
a)
Light
b)
Vibrations
c)
Empty Space
d)
Heat
39.

Which of these would be different for an object if measured on the Earth and on the Moon?

a)

Mass

b)

Weight

c)

Volume

d)

Amount of matter an object contains

40.

The force that holds objects close to Earth is called ---

a)

Mass

b)

Weight

c)

Gravity

d)

Work

41.

Force = mass (x) acceleration. Calculate the force of a bowling ball hitting pins if it has a mass of 8kg and an acceleration of 3 m/s2?

a)

2.3 N

b)

24 N

c)

16 N

d)

25 N

42.

How much work is done if a lever lifts an object 3 meters with an input force of 9N? (work = force x distance)

a)

27 J

b)

27 m/s

c)

3 J

d)

0.33 J

43.

A Fan does 5000 J of work for 100 seconds. How much power is the fan using in Watts? P = W / t

a)

500,000 W

b)

50 W

c)

0.02 W

d)

500 W

44.

S=d/t What is the average speed of a car that travels 210 miles in 3 hours?

a)

70 miles/hour

b)

630 miles/ hour

c)

50 miles/hour

d)

80 miles/hour

45.

What is the average speed for this graph? s=d/t

a)

20 m/s

b)

8.3 m/s

c)

10 m/s

d)

50 m/s

46.

Which of these ramps (inclined plane) has the greatest mechanical advantage?

a)
b)
c)
47.

Which law explains the relationship among mass, force, and acceleration?

a)

1st

b)

2nd

c)

3rd

48.

Which law of motion predicts that a moving soccer ball will continue to move in the same direction at the same speed unless acted upon by another force?

a)

1st

b)

2nd

c)

3rd

49.

Compare the amount of work required to lift an object 0.5 m with two different inclined planes. Inclined Plane A requires a force of 2.5 N and is 2.0 m long. Inclined Plane B requires a force of 2.8 N and is 1.5 m long.

work = force x distance or w=fd

a)

You cannot compare the work performed because the distance the object moves on each inclined plane is different.

b)

Inclined Plane B requires more work because it uses more force over a shorter distance.

c)

Inclined Plane A requires more work because you have to move the object a longer distance.

50.

Which would have the least amount of friction?

a)
b)
c)
51.
Which energy chain is correct for this flashlight?
a)
Electrical --> Thermal --> Radiant
b)
Thermal --> Radiant --> Chemical
c)
Chemical--> Radiant --> Thermal
d)
Chemical --> Electrical --> Radiant
52.
According to the Law of Conservation of Energy, when energy changes from one form to another form, the total energy of that system ---
a)
Increases
b)
Decreases
c)
Stays the same
d)
Alternates
53.
Electric motors are devices that convert _____ energy into  _____ energy.
a)
electrical; mechanical
b)
mechanical; electrical
c)
chemical; potential
d)
mechanical; kinetic
54.
The splitting of a nucleus into smaller nuclei is
a)
fusion
b)
fission
c)
half-life
d)
gamma radiation
55.
Two nuclei with low masses are combined to form one nucleus of larger mass is called what?
a)
Nuclear fission
b)
Nuclear fussion
c)
Nuclear half-life
d)
Half-life
56.
Balance this equation.
_CF4 + _Br2 -- _CBr4 + _F2
a)
2,1,2,1
b)
1,2,2,1
c)
1,2,1,2
d)
2,2,2,2

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