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Science 8 pre quarter exam

Total questions: 84

Worksheet time: 2hrs 35mins

Name
Class
Date
1.

Energy that an object has due to its motion, shape, position, or a combination of these factors.

a)

Nuclear Energy

b)

Mechanical Energy

c)

Electrical Energy

d)

Chemical Energy

2.

Energy that is stored in the nucleus.

a)

Chemical Energy

b)

Mechanical Energy

c)

Thermal Energy

d)

Nuclear Energy

3.

A nuclear reaction when a nucleus splits into smaller pieces.

a)

Fusion

b)

Fission

4.

A nuclear reaction when small nuclei combine to form one large nucleus.

a)

Fusion

b)

Fission

5.

The center of an atom is called the ______________.

a)

electron

b)

nucleus

c)

liquid

d)

neutron

6.

Nuclear energy is released through a _____________________.

a)

chemical reaction

b)

physical change

c)

nuclear reaction

d)

chemical change

7.

Objects that are very ________ have a lot of thermal energy.

a)

hot

b)

cold

c)

big

d)

small

8.

The total potential and kinetic energy of particles in an object is called _______________________. It can also be called heat energy.

a)

mechanical energy

b)

chemical energy

c)

electromagnetic radiation

d)

thermal energy

9.

Energy stored in chemical bonds.

a)

chemical energy

b)

nuclear energy

c)

electrical energy

d)

electromagnetic radiation

10.

We get chemical energy from our (a)   .

11.

Energy of electric charges.

a)

mechanical energy

b)

electrical energy

c)

thermal energy

d)

electromagnetic radiation

12.

Different charges can result in ________________.

a)

sunlight

b)

heat

c)

electricity

d)

chemical bonds

13.

Form of kinetic energy that travels through space in waves.

a)

Electromagnetic Radiation

b)

Electrical Energy

c)

Chemical Energy

d)

Nuclear Energy

14.

Electromagnetic radiation does not need a (a)   to travel through.

15.

Nuclear power plants use _____________ to create electricity.

a)

fission

b)

fusion

16.

Which of the following is NOT an example of electromagnetic radiation?

a)

X-Rays

b)

Microwaves

c)

Phone Signals

d)

Drinking Water

e)

Radio Waves

17.

Which type of energy is most closely related to temperature?

a)

chemical energy

b)

thermal energy

c)

mechanical energy

d)

nuclear energy

18.

Which types of energy are only potential energy?

a)

nuclear

b)

thermal

c)

electrical

d)

chemical

e)

electromagnetic

19.

Which types of energy are both potential and kinetic?

a)

electromagnetic

b)

mechanical

c)

thermal

d)

nuclear

e)

electrical

20.

Which type of energy is only kinetic energy?

a)

electromagnetic

b)

thermal

c)

nuclear

d)

mechanical

21.

Which temperature scale has no negative temperatures?

a)

Celsius

b)

Fahrenheit

c)

Kelvin

22.

Device/Object that measures temperature.

a)

Thermal energy

b)

Temperature

c)

Thermometer

23.

The absolute coldest anything can get.

In Celsius it's -273.15 degrees. Or 0 degrees Kelvin.

a)

Absolute cold

b)

Kelvin

c)

Absolute zero

24.

which is the metric scale?

a)

Fahrenheit

b)

Celsius

c)

Kelvin

25.

What is the definition of CONDUCTION?

a)

When heat is transferred from objects like rays of light or electromagnetically.

b)

a hot liquid or air that expands, becomes less dense, and rises or becomes more dense, and sinks.

c)

When heat transfers from objects that are touching.

26.

What is the definition of CONVECTION

a)

When heat transfers through waves.

b)

When heat transfers from objects that are touching.

c)

a hot liquid or air that expands, becomes less dense, and rises or becomes more dense, and sinks.

27.

What kind of heat transfer happens when the sun is heating your body?

a)

Conduction

b)

Radiation

c)

Convection

28.

Density changes are responsible for which method of thermal energy transfer?

a)

conduction only

b)

convection only

c)

radiation only

29.

What are Conductors?

a)

A conductor is a material that allows heat to move through it easily

b)

an insulator

c)

A material or an object that does not easily allow heat, electricity, light, or sound to pass through it. Air, cloth and rubber are good electrical insulators; feathers and wool make good thermal insulators. Compare conductor.

30.
A conductor allows energy to easily pass by.  
a)
True 
b)
False
31.
A insulator does not let energy flow through easily 
a)
True 
b)
False
32.

What is a example of a conductor?

a)

wood

b)

metal

c)

rubber

33.
What are insulators?  
a)
A conductor is a material that allows electric charge to move through it as an electric current. Usually the charge is carried by electrons, and the conductor is a metal.
b)
An object that is really, really, really, and I mean really truely, awesome.
c)
A material or an object that does not easily allow heat, electricity, light, or sound to pass through it. Air, cloth and rubber are good electrical insulators; feathers and wool make good thermal insulators. Compare conductor.
34.

What is Thermal expansion?

a)

The transfer of thermal energy between materials by the collisions of particles

b)

Is a decrease in a materials volume when temperature decreases

c)

An increase in a materials volume when temperature increases

35.

The amount of energy required to raise the temperature 1ºC for every kilogram is called____?

a)

Thermal Energy

b)

Specific Heat

c)

Temperature

36.
A high specific heat means...
a)
It heats up quickly with energy added
b)
It requires more energy to change temperature
37.

What has particularly high specific heat?

a)

Water

b)

Gases

c)

Metals

38.
Poor conductors like wood and plastic are called:
a)
conductors
b)
insulators
c)
burners
39.

What is a example of a insulator?

a)

metal

b)

rubber

c)

silver

40.

The kind of heat transfer that travels through space in electromagnetic waves is ______________________.

a)

insulation.

b)

Radiation

c)

Conduction

41.

In heat transfer, heat always flows from the _______________ substance to the _______________ substance.

a)

Hotter to colder

b)

Colder to hotter

c)

Hotter to hotter

42.

What is Thermal expansion?

a)

The transfer of thermal energy between materials by the collisions of particles

b)

Is a decrease in a materials volume when temperature decreases

c)

An increase in a materials volume when temperature increases

43.

What is the difference between a conductor and an insulator?

a)

An insulator allows heat to flow through it easily and a conductor does not

b)

A conductor allows heat to flow through it easily and an insulator does not.

c)

An insulator is magnetic and a conductor is not

44.
Silver is a _____?
a)
insulator
b)
conductor
45.
What kind of heat transfer happens when the sun is heating your body?
a)
Conduction
b)
Radiation
c)
Convection
d)
Density
46.
What heat transfer happens when you burn your hand by touching a fire?
a)
Radiation
b)
Conduction
c)
Convectio
d)
I don't know!!!!!!!!!!!
47.
Warm air rises and the cool air sinks demonstrates this type of heat transfer. 
a)
conduction
b)
convection
c)
radiation
d)
Insolation 
48.
Ironing a shirt is an example of...
a)
condensation
b)
conduction
c)
convection
d)
radiation
49.
Warm air is __________ dense than cold air and rises creating convection currents.
a)
more
b)
less
50.
Transfer of thermal energy through "space"
a)
conduction
b)
convection
c)
radiation
51.
Hot coffee is stirred with a spoon; the spoon gets hot due to
a)
conduction
b)
convection
c)
radiation
52.
A chair is several feet from a fireplace. The side of the chair facing the fireplace gets warm due to
a)
conduction
b)
convection
c)
radiation
53.
"Lava lamps" contain colored liquids. These liquids form globs that rise to the top due to
a)
conduction
b)
convection
c)
radiation
54.
Near the ceiling of a room the air is warmer; the warm air rises because of
a)
conduction
b)
convection
c)
radiation
55.
In a swimming pool, water near the surface is slightly warmer. The warm water rises because of
a)
conduction
b)
convection
c)
radiation
56.
How many kinds of heat transfer are there?
a)
1
b)
2
c)
3
d)
4 or more
57.
Put the liquids in order from most dense to least dense?
a)
4, 3, 2, 1
b)
1, 2, 3, 4
c)
3, 4, 2, 1, 
d)
4, 3, 1, 2
58.
Which liquid is the least dense?
a)
oil
b)
water
c)
syrup 
d)
plastic bottle
59.
Which box has a higher density?  
a)
Box A
b)
Box B
c)
cannot be determined
d)
they are the same
60.
In general what is the most dense form of matter?
a)
solid
b)
liquid
c)
gas
d)
plasmas
61.
Why do some substances float on water?
a)
they are warmer than water
b)
they are cooler than water
c)
they are more dense than water
d)
they are less dense than water
62.

As an object is heated its density

a)

increases

b)

decreases

c)

remains the same

63.
T/F? Your weight is different on the moon.
a)
true
b)
false
64.
T/F? Your mass is different on the moon.
a)
true
b)
false
65.

Which of the options is the scientific explanation for a WAVE?

a)

Any disturbance that transfers energy from place to place

b)

Something you can surf on.

c)

A transfer of thermal energy from one medium to another.

d)

When molecules disperse as a result of Charles' Law

66.

What is a medium?

a)

Someone that talks to ghosts.

b)

A material/matter in which a wave travels through.

c)

The length of a transverse wave.

d)

An absence of all matter

67.

What is the scientific definition of a vacuum?

a)

A straw or syphon that transfers liquid when suction is applied.

b)

A device that cleans the floors using suction.

c)

An absence of matter.

68.

Which type of wave must have a material to transfer through?

a)

Electromagnetic radiation

b)

Mechanical waves

69.

Radio waves, x-rays, and microwaves are all examples of what?

a)

The light spectrum

b)

Electromagnetic radiation

c)

Potential energy

d)

1980s New Wave music

70.

Which of these images show a transverse wave?

a)
b)
71.

What wave feature is B indicating on the diagram?

a)

crest

b)

trough

c)

amplitude

d)

wavelength

72.

What wave feature is D indicating on the diagram?

a)

crest

b)

trough

c)

amplitude

d)

wavelength

73.

What wave feature is G indicating on the diagram?

a)

crest

b)

trough

c)

amplitude

d)

source of energy

74.

What wave feature is C and E indicating on the diagram?

a)

crest

b)

resting position

c)

amplitude

d)

wavelength

75.

What term does the following sentence describe?

The distance between the highest point of a wave crest and the resting position of the wave is the _________.

a)

frequency

b)

amplitude

c)

trough

d)

resting position

76.

Which of these images show a longitudinal wave?

a)
b)
77.

True or false?

A transverse wave travels perpendicular (at 90 degree/right angles) to the direction of the wave source's energy?

a)

True

b)

False

78.

Which wave travels in the SAME DIRECTION as the vibrations that are produced my the source?

a)

Longitudinal

b)

Transverse

79.

What type of wave is shown in this image?

a)

Transverse wave

b)

Longitudinal wave

80.

What type of wave does this image display?

a)

Transverse wave

b)

Longitudinal wave

81.

You place a ping pong ball in a wave machine that is producing transverse waves. Which of these statements is true about the ball?

a)

The ball will travel in the direction of the wave

b)

The ball will travel against the direction of the wave.

c)

The ball will bob up and down and remain in the same position.

d)

The ball will sink below the surface of the water.

82.

Fill in the blank:

The distance a wave travels from crest to crest in know as the _________.

a)

Frequency

b)

Wave length

c)

trough

d)

refraction

83.

What is letter A indicating?

a)

Wave compression

b)

Wave rarefaction

84.

What is letter B indicating?

a)

Wave compression

b)

Wave rarefaction

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