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Final Review for Science 8R Final

Total questions: 89

Worksheet time: 1hrs 20mins

Name
Class
Date
1.

Select the correct order of waves on the EMS from the longest wavelength to the shortest wavelength

a)

Radio, Micro, Infra, Visible, Ultra, X-ray, Gamma

b)

Gamma, X-ray, Ultra, Vis, Infra, Micro, Radio

c)

Vis, Micro, Infra, Ultra, X-ray, Gamma, Radio

d)

Micro, Radio, Vis, Infra, Ultra, X-ray, Gamma

2.
Which of the following are conductors?
a)
air
b)
plastic straw
c)
copper wire
d)
wooden spoon
3.
Which of the illustrations shows a circuit in which the light will actually come on?
a)
A
b)
B
c)
C
d)
D
4.
What causes the phases of the moon?
a)
the moon's orbit around Earth
b)
the moon's orbit around the sun
c)
Earth's orbit around the sun
d)
gravity
5.

__________________ is the day-to-day conditions of the atmosphere, including temperature, precipitation and other factors.

a)

Climate

b)

Weather

c)

Temperature

d)

Humidity

6.

_________________ is the average year to year conditions of temperature and precipitation in an area over a long period of time.

a)

Climate

b)

Weather

c)

Temperature

d)

Atmospheric condition

7.

An air mass is a large mass of air that is defined by its temperature and ____________________.

a)

Elevation (altitude)

b)

Water vapor content (humidity)

c)

Strength

d)

Weather

8.

Which type of air mass is dry and warm?

a)

Continental polar

b)

Continental tropical

c)

Maritime polar

d)

Maritime tropical

9.

Which type of air mass is warm and humid?

a)

Continental polar

b)

Continental tropical

c)

Maritime polar

d)

Maritime tropical

10.

Which type of air mass is cold and dry?

a)

Continental polar

b)

Continental tropical

c)

Maritime polar

d)

Maritime tropical

11.

Which type of air mass is pictured in letter "C" (northeastern U.S., around NYC)?

a)

Continental polar

b)

Continental tropical

c)

Maritime polar

d)

Maritime tropical

12.

Where do most earthquakes occur?

a)

In the center of tectonic plates

b)

Near edges of plates, called tectonic plate boundaries

c)

On the moon

d)

In the ocean away from any plates

13.

Measures wind speed.

a)

Rain Gauge

b)

Wind Vane

c)

Wind Sock

d)

Anemometer

14.

Measures air pressure.

a)

Thermometer

b)

Barometer

c)

Hygrometer

d)

Compass

15.

The Law of Conservation of Energy states:

a)

Energy can created or destroyed but not transformed

b)

Energy cannot be created or destroyed, it can only transformed

c)

Energy can't be created, destroyed or transformed

d)

Energy cannot be created or destroyed.

16.

In New York State, dry, cool air masses (cP) often interact with moist, warm air masses (mT). Which statement correctly matches each air mass with its usual geographic source region?

a)

cP is from northern Canada and mT is from the Gulf of Mexico

b)

cP is from northern Canada and mT is from the deserts of the southwestern United States

c)

cP is from the North Atlantic Ocean and mT is from the Gulf of Mexico

d)

cP is from the North Atlantic Ocean and mT is from the deserts of the southwestern United States

17.
Question Image

Match the air mass to the correct air conditions.

a)

mP

1.

Cold and Humid Air

b)

mT

2.

Warm and Humid Air

c)

cP

3.

Cold and Dry Air

d)

cT

4.

Warm and Dry Air

18.

In what way does the use of digital signals impact the quality of audio and video transmissions compared to analog signals?

a)

Digital signals degrade more over distance

b)

Digital signals maintain quality better due to error correction

c)

Analog signals are always clearer

d)

Analog signals are more reliable

19.
Is a video game coded as analog or digital data?
a)
Analog
b)
Digital
20.
Why are digital signals more reliable in transmitting information than analog signals? 
a)
They are more powerful
b)
They carry less information
c)
They have less interference over long distances
d)
They have more interference over long distances
21.

This type of signal is more affected by noise and greatly affects the quality of the signal

a)

Analog

b)

Digital

22.
Is this digital or analog?
a)
Digital 
b)
Analog
23.

What happens to light when it hits a white surface?

a)

It is absorbed

b)

It is reflected

c)

It is transmitted

d)

It is refracted

24.
A student placed a pencil in a cup of water.  The pencil appears broken because light-
a)
always travels in a straight line
b)
bends when it passes through water
c)
makes the water in the glass evaporate
d)
reflects the pencil on the water's surface
25.
The illustration shows a light ray striking an object.
In the illustration, the light ray striking the object is-
a)
absorbed
b)
stopped
c)
reflected
d)
refracted
26.

What would you call this?

a)

Bounce back

b)

Reflection

c)

Diffraction

d)

Refraction

27.

A carbon nanotube capturing light is an example of:

a)

Reflection

b)

Refraction

c)

Absorption

28.

A student places a sheet of black construction paper on her desk. What happens to most of the light that strikes the black construction paper?

a)

The light passes through the paper.

b)

The light is absorbed by the paper.

c)

The light reflects off the paper.

d)

The light is bent by the paper.

29.
Every object in the universe attracts every other object.
a)
True
b)
False
30.
Why might your hair stand on end after combing?
a)
Static electricity causing charge transfer
b)
Hair gel effects
c)
Room temperature
d)
Humidity levels
31.
Earth's rotation takes about 
a)
365 days
b)
6 months
c)
24 hours
d)
1 month
32.
Rotation
a)
Causes day and night
b)
Causes seasons
33.
Revolution
a)
Causes seasons
b)
Causes day and night
34.
In this diagram, the motion of the Earth can best be described as -
a)
Rotation
b)
Revolution
35.

Sound waves can travel through all of the following EXCEPT

a)

a vacuum (empty space)

b)

air

c)

water

d)

steel

36.

As sound waves travel through air, they cause air molecules to ___.

a)

vibrate

b)

bend

c)

lose energy

d)

be absorbed

37.

What do sound waves need to travel through?

a)

a medium

b)

a light

c)

a wave

d)

a vacuum

38.
Where is the force of attraction the strongest on a magnet?
a)
at the poles
b)
in the middle
c)
above the magnet
d)
below the magnet
39.
What is the main reason the Moon can be seen from Earth?
a)
The Moon emits its own light.
b)
The Moon reflects sunlight.
c)
The Moon is a glowing ball of gas.
d)
The Moon reflects light from Earth.
40.

How long does it take Earth to REVOLVE around the sun?

a)

about a 1 day

b)

about 24 hours

c)

about 3 years

d)

about 1 year

41.
Which season is taking place in the Northern Hemisphere in Position 3?
a)
Winter
b)
Spring
c)
Summer
d)
Fall
42.
Why do we experience the changing of the season on the earth?
a)
distance from the sun
b)
rotation of the earth
c)
change in solar output
d)
tilt of the earth's axix
43.

The day of the year with the most daylight hours is the

a)

spring equinox

b)

fall equinox

c)

summer solstice

d)

winter solstice

44.
The gradual increase in the temperature of the atmosphere is known as ________________.
a)
Greenhouse Effect
b)
Global Warming
c)

Global Cooling

d)

Climate Change

45.
Burning fossil fuels is one of the main causes for global warming.
a)
True
b)
False
46.

What is the energy source for the water cycle?

a)

the Sun

b)

the Earth

c)

water

d)

the Moon

47.
What part of the water cycle does this picture show?
a)
condensation
b)
precipitation
c)
evaporation
48.
What is it called when plants give off water vapor as a waste product?
a)
condensation
b)
evaporation
c)
sublimation
d)
transpiration
49.
What is precipitation?
a)
The part of the water cycle when the sun heats up water, turning it from a liquid into water vapor or steam. It rises from the ground into the air.
b)
The part of the water cycle when the water vapor in the air gets cold. The water turns back into a liquid and forms clouds.
c)
The part of the water cycle when clouds get heavy and can no longer hold the liquid water. This causes the water to fall from the sky to the earth as rain, snow, sleet, or hail.
50.
What is evaporation?
a)
The part of the water cycle when the sun heats up water, turning it from a liquid into water vapor or steam. It rises from the ground into the air.
b)
The part of the water cycle when the water vapor in the air gets cold. The water turns back into a liquid and forms clouds.
c)
The part of the water cycle when clouds get heavy and can no longer hold the liquid water. This causes the water to fall from the sky to the earth as rain, snow, sleet, or hail.
51.

The process by which molecules of water vapor become liquid water.

a)

transpiration

b)

evaporation

c)

condensation

d)

accumulation

52.

Lines on a map that represent equal air pressure are called

a)

isobars

b)

isotherms

c)

isohyets

d)

contour lines

53.

What causes differences in air pressure?

a)

even heating of the Earth

b)

Even cooling of the earth

c)

uneven heating of the earth

d)

global warming

54.

Phase change going from Liquid to Solid...

a)

Melting

b)

Freezing

c)

Condensation

d)

Sublimation

55.
All changes in the state of matter of a substance requires
a)
vibration
b)
water
c)
permission
d)
energy
56.
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
57.
When the temperature of matter decreases the particles ...
a)
speed up and move farther apart
b)
speed up and move closer together
c)
slow down and move farther apart
d)
slow down and move closer together
58.
When the temperature of matter increases the particles...
a)
speed up and move closer
b)
speed up and move farther apart
c)
slow down and move closer together
d)
slow down and move farther apart
59.

Which liquid has the greatest density?

a)

Corn oil

b)

Shampoo

c)

Antifreeze

d)

Maple syrup

60.

Which liquid is less dense than dish detergent?

a)

DIsh detergent

b)

Shampoo

c)

Antifreeze

d)

Maple syrup

61.

Which liquid has the least density?

a)

Corn oil

b)

Shampoo

c)

Antifreeze

d)

Maple syrup

62.

Earth’s rotation is a process that causes

a)

the sun to appear to rise and set.

b)

stars to appear to move across the sky.

c)

celestial objects in space appear to move daily in circular patterns.

d)

all of the above

63.

What is the difference between insulators and conductors?

a)

Insulators are used only for electricity and conductors are used only for heat

b)

Insulators allow electricity to flow easily and conductors do not.

c)

Conductors allow electricity to flow easily and insulators do not

d)

Conductors are used only for electricity and insulators are used only for heat

64.

Glass, rubber, wood and plastic are all examples of (a) ______ since electricity cannot pass through them

a)

insulators

b)

materials

c)

conductors

d)

Thermal Conductivity

65.

Select all: Examples of good conductors

a)

Copper

b)

Glass

c)

Aluminium

d)

Rubber

66.

What arrangement makes ELECTRIC force attract?

a)

Negative and negative

b)

Negative and positive

c)

positive and positive

67.

In what arrangement does ELECTRIC force repel? Select all that apply

a)

negative and negative

b)

negative and positive

c)

Positive and positive

68.

How do the stars prove Earth's rotation?

a)

Stars and constellations appear to move to the left or clockwise

b)

Stars and constellations do not appear to move

c)

Stars and constellations appear to move around Polaris.

d)

Stars and constellations rise in the west and set in the east

69.

What is the general pattern of the Sun's movement across the sky in the Northern Hemisphere? 

a)

The Sun rises in the west and sets in the east. 

b)

The Sun rises in the east and sets in the west. 

c)

The Sun does not appear to move during the day. 

d)

The Sun rises in the north and sets in the south. 

70.
Warm air rises and the cool air sinks demonstrates this type of heat transfer. 
a)
conduction
b)
convection
c)
radiation
d)
Insolation 
71.

What is kinetic energy?

a)

Stored energy

b)

Moving energy

c)

Potential energy

d)

All of the above

72.

What is potential energy?

a)

The amount of energy an object could have if it tried hard enough.

b)

Moving energy

c)

Stored energy

d)

Active energy

73.
The faster an object moves, the ________ kinetic energy it has. 
a)
more
b)
less
c)
none of the above
d)
all of the above 
74.

Which ball has the greater potential energy and why?

a)

The blue ball has more PE because it is closer to the ground.

b)

The blue ball has more PE because it has more mass.

c)

The green ball has more PE because it's height is greater.

d)

The green ball has more PE because it has less mass.

75.

What factors does the kinetic energy of an object depend upon?

a)

mass and volume

b)

mass and height

c)

force and distance

d)

mass and speed

76.

What is the main cause of flash floods?

a)

Slow melting of snow

b)

Heavy rainfall

c)

Levee break

d)

Ocean waves

77.

What is the best precaution to take when a flash flood warning is issued?

a)

Ignore the warning

b)

Get to higher ground

c)

Stay indoors

d)

Drive through flooded roadways

78.

As wavelength increases: frequency, (a)   and energy (b)   .

Choose from the below words
Increases; decrease
Increases; increases
Decreases; decreases
Decrease; increases
79.

Select all that apply. Sound -

a)

requires a medium (matter) to travel through

b)

does NOT require a medium (matter) to travel through.

c)

CANNOT be heard in the vacuum of space

d)

CAN be heard in the vacuum of space

e)

is mechanical energy

80.

Select all that apply. light-

a)

requires a medium (matter) to travel through

b)

does NOT require a medium (matter) to travel through.

c)

CANNOT be seen in the vacuum of space

d)

CAN be seen in the vacuum of space

e)

is radiant energy

81.

The bigger the amplitude, the ________ energy carried by the wave.

a)

more

b)

less

82.
Which wave in the diagram has the greatest wavelength?
a)
1
b)
2
c)
3
d)
4
83.

Which wave has the greatest amplitude?

a)

C

b)

D

c)

E

84.
A high-frequency wave has ___________ than a low-frequency wave
a)
a longer wavelength
b)
a shorter wavelength
c)
the same wavelength
d)
a stronger source
85.

How does a wave's amplitude relate to sound energy?

a)

The higher the amplitude the softer the sound

b)

The higher the amplitude there is no change in sound energy

c)

The higher the amplitude the louder the sound

d)

Amplitude is the same as pitch

86.

light is taken in or soak up

a)

refraction

b)

reflection

c)

absorption

d)

medium

87.

What two things determines the gravity of an object?

a)

mass & weight

b)

mass & distance

c)

density & mass

d)

volume & distance

88.
As mass increases, what happens to gravitational force?
a)

Increases

b)

Decreases

c)

Stays the same

d)

I don't know

89.
Which model has greater gravitational attraction (if any)
a)
Model A
b)
Model B
c)
Both Model A and Model B (same gravity)

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