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Worksheets

G8 S2 Review

Total questions: 167

Worksheet time: 4hrs 38mins

Name
Class
Date
1.

Kinetic Energy is the energy of _________

a)

thermal

b)

movement

c)

potential

d)

atoms

2.

Everything has thermal energy

a)

False

b)

True

3.

All matter is made up of atoms that are constantly moving

a)

True

b)

False

4.

Thermal energy is the __________ _________ energy of moving particles

a)

total potential

b)

average potential

c)

average kinetic

d)

total kinetic

5.

Temperature is the __________ _________ energy of moving particles

a)

average potential

b)

average kinetic

c)

total potential

d)

total kinetic

6.

Hot things have ____________ thermal energy than cold things

a)

more

b)

less

c)

same

d)

potato

7.

Objects with MORE MASS have______________

a)

lower potential energy

b)

lower number of atoms

c)

higher thermal energy

d)

higher temperature

8.

Temperature is a way we ____________ energy

a)

eat

b)

measure

c)

gain

d)

lose

9.

Cold things often have a _________ kinetic energy because_______

a)

lower; particles are moving around less

b)

lower; particles are moving around more

c)

higher; particles are moving around the same

d)

higher; particles do not move

10.

Potential energy is the _________

a)

energy of movement

b)

same as kinetic energy

c)

stored energy inside of something

d)

potato

11.

Temperature always measures the ___________ movement of molecules

a)

median

b)

mode

c)

total

d)

average

12.

For objects that have the SAME mass, which object will have a HIGHER thermal energy?

a)

the object with the higher temperature

b)

the object with the lower temperature

c)

the objects will have the same temperature

d)

the objects have no temperature

13.

Which will have the HIGHEST thermal energy?

a)

Hot cup of tea

b)

Cold bathtub water

c)

Huge lake

d)

Warm bowl of soup

14.

Which will have the LOWEST thermal energy?

a)

Large mug of hot coffee

b)

Baby bottle with warm milk

c)

Gatorade jug of cold Gatorade

d)

Large frozen puddle

15.

Objects with MORE MASS have MORE thermal energy because

a)

there are more molecules with energy in bonds

b)

there are less atoms

c)

there is less kinetic energy in the system

d)

there is no potential energy at all

16.

Energy is the ability to do __________

a)

bonds

b)

work

c)

atoms

d)

molecules

17.

Law of Conservation of Mass says...

a)

Energy is always created and destroyed

b)

Energy is only in hot things

c)

Energy can be destroyed easily

d)

Energy cannot be created or destroyed

18.

Dribbling a basketball is an example of

a)

potential energy

b)

stored energy

c)

temperature

d)

kinetic energy

19.

As temperature increases, molecules _____________

a)

move slower

b)

move the same

c)

move faster

d)

stop moving

20.

What happens to the molecules inside bridges when temperature increases? Why are there joints in the structure?

a)

Molecules move more, joints prevent them from hitting each other

b)

Molecules move less, they shrink in size

c)

Molecules move more, joints allow them room to expand without breaking bridge

d)

Molecules are not affected by temperature

21.
Which material is the best conductor of heat?
a)
glass
b)
styrofoam
c)
metal
d)
wood
22.
What materials would be good insulators for a handle on a pan or pot that would be used on the stove?
a)
wood or plastic
b)
metal or rubber
c)
wood or rubber
d)
copper or steel
23.
Why does a metal lawn chair get hot in the sun when the grass sitting in the same sunlight remains cool to the touch?
a)
Heat travels easily through plants but not metals.
b)
Heat travels easily through both plants and metals.
c)
Heat travels easily through metal objects but not through plants.
24.
Conduction can only occur between two objects when –
a)
one object is less dense than the other.
b)
both objects are in physical contact with each other.
c)
one of the objects is made of a metal.
d)
both objects are exactly the same temperature.
25.
Which of the following is an example of conduction?
a)
Solar energy warming a room.
b)
Heat rising from the coils of a stove.
c)
Hot air drying a wet towel.
d)
Heat moving from a clothes iron to a shirt.
26.
The particles of a gas move ____than the particles of the same substance in the liquid or solid state.
a)
faster
b)
slower
c)
same speed
27.
Which of the following are kinds of heat transfer.
a)
Conduction
b)
Convection
c)
Radiation
d)
All of the above
28.

Heat will always transfer from the ___________ object to the ________ object.

a)

The hottest object to the coolest object.

b)

The coolest object to the hottest object.

c)

The solid object to the liquid object.

d)

The liquid object to the solid object.

29.
Jenny poured some hot chocolate into a cup and stirred it with a metal spoon.  She noticed the spoon was really warm.  What is the best explanation for this?
a)
The spoon is a conductor.
b)
The spoon reflects heat.
c)
The spoon is an insulator.
d)
She touched the spoon first and waited to touch the cup.
30.
Convection is heat transfer by-
a)
Touch an object
b)
The heating and cooling of a fluid
c)
Electromagnetic Waves
31.
Radiation is heat transfer by-
a)
Touch
b)
Circles
c)
Waves
32.
In what direction do hot liquids and gasses move?
a)
Side to Side
b)
Down
c)
Up
d)
Back and Forth
33.
The way the heat is moving from the hot coffee is called...
a)
convection
b)
radiation
c)
insulation
d)
conduction
34.
When the 2nd story of a house is warmer than the 1st floor of a house is heat transfer through 
a)
conduction
b)
convection
c)
radiation
d)
thermal equilibrium
35.
The sun warming your skin is an example of heat transfer through 
a)
conduction
b)
convection
c)
radiation
d)
thermal electricity
36.
Is a measure of how hot or cold something is 
a)
Cold
b)
Heat
c)
Temperature
d)
Thermal Energy 
37.
The flow of thermal energy from warmer objects to cooler objects 
a)
Ice Cold
b)
Heater
c)
Heat
d)
Convection 
38.
Matter will change from one state to another if thermal energy is _______.
a)
released
b)
absorbed
c)
all of the above
d)
none of the above
39.
What do you call the temperature at which a substance changes from a liquid to a solid?
a)
Melting Point
b)
Boiling Point
c)
Freezing Point
d)
Solid Point
40.
As the thermal energy of a substance increases, its particles spread out and the substance expands.
a)
True
b)
False
41.
The particles of a gas move ____than the particles of the same substance in the liquid or solid state.
a)
faster
b)
slower
c)
same speed
42.
The change of state from a solid to a liquid is called ______.
a)
Freezing
b)
Boiling
c)
Melting
43.
What is the freezing point on the celsius scale?
a)
0
b)
32
c)
100
d)
-100
44.
Thermal energy and temperature are the same.
a)
True
b)
False
45.
Which of the following are kinds of heat transfer.
a)
Conduction
b)
Convection
c)
Radiation
d)
All of the above
46.
_________ is the amount of energy required to raise the temperature of 1 kilogram of a substance by 1 kelvin.
a)
thermal energy
b)
specific heat
c)
thermostat
d)
temperature
47.
Which type of engine burns fuel outside the engine?
a)
Internal combustion engine
b)
External combustion engine
48.

What do all waves transfer?

a)

Matter

b)

Heat

c)

Electricity

d)

Energy

49.

Which of the following can waves transfer energy through?

a)

solid

b)

liquid

c)

gas

d)

empty space

e)

all of the above

50.

What are the two types of waves?

a)

longitudinal and transverse

b)

sound and light

51.

What is the number of complete waves passing a fixed point in a given amount of time?

a)

Amplitude

b)

Intensity

c)

Wavelength

d)

Frequency

52.

What is frequency measured in?

a)

Milliseconds

b)

Miles

c)

Hertz

d)

Kilograms

53.

Period of a wave refers to...

a)

how long it takes for the event to repeat.

b)

how strong a wave is.

c)

how long a wave is.

d)

how much energy a wave has.

54.

Which type of waves have the longest wavelength?

a)

Visible light

b)

Radio waves

c)

X-rays

d)

Gamma-Rays

55.

Wavelengths are usually measured in ....

a)

seconds

b)

Hz

c)

inches

d)

meters

56.

Shorter wave lengths can carry more energy. Which of these probably carries the MOST energy:

a)

Infrared light

b)

Visible light

c)

X-rays

d)

UV light

57.

What is the distance between the calm sea and the highest wave called?

a)

Wave

b)

Frequency

c)

Amplitude

d)

Magnitude

58.

What does #1 represent?

a)

Period

b)

Frequency

c)

Wavelength

d)

Amplitude

59.

What does #2 represent?

a)

Period

b)

Frequency

c)

Wavelength

d)

Amplitude

60.

What does #3 represent?

a)

Period

b)

Frequency

c)

Wavelength

d)

Amplitude

61.

What do all waves transfer?

(a)  

62.
What part is the arrow pointing to?
a)
Crest
b)
Trough
c)
Amplitude
d)
Wavelength
63.
What part is the arrow pointing to?
a)
Crest
b)
Trough
c)
Amplitude
d)
Wavelength
64.
What part is represented by the blue lines?
a)
Crest
b)
Resting Point
c)
Wavelength
d)
Amplitude
65.
What is represented by the blue lines?
a)
Trough
b)
Crest
c)
Wavelength
d)
Amplitude
66.
Which wave has a higher frequency?
a)
A
b)
B
67.
Which wave has a longer wavelength?
a)
A
b)
B
68.
What type of wave is this?
a)
Transverse
b)
Longitudinal
69.
What type of wave is this?
a)
Transverse
b)
Longitudinal
70.
Which type of wave does light travel in?
a)
Transverse
b)
Longitudinal
71.
Which type of wave does sound travel in?
a)
Transverse
b)
Longitudinal
72.
What type of wave does an earthquake travel in?
a)
Seismic Waves
b)
Ocean Waves
c)
Big Waves
d)
Slow Waves
73.
If the lights are on, the circuit is
a)
closed
b)
open
74.
If the lights are off, the circuit is
a)
closed
b)
open
75.
When the switch is closed, the light
a)
comes on
b)
stays off
c)
burns out
76.

The purpose of wires are to?

a)

Turn a switch on

b)

Turn off a light

c)

Carry electric current to different parts of the circuit

d)

Make a motor move

77.

The MAIN purpose of a battery is to

a)

Make things hot

b)

Store energy

c)

Move energy from one place to another

d)

Provide motion

78.

The plus sign on a battery shows which terminal?

a)

Positive

b)

Negative

79.

The minus sign on a battery shows which terminal?

a)

Positive

b)

Negative

80.

If one part of the circuit is broken what will happen?

a)

The electricity will continue to flow

b)

The electricity will stop flowing

c)

The electricity will move faster

d)

The electricity will move slower

81.

The 3 components needed to complete a light circuit are? (Choose 3)

a)

Motor

b)

Light bulb

c)

Switch

d)

Wires

e)

Battery

82.
Which components are necessary to complete an electrical circuit?
a)
wire or conductive material
b)
power source
c)
Load or electrical receiver
d)
All of the above
83.

The flow of electrons is also called..

a)

Resistance

b)

Voltage

c)

Current

d)

Magnetism

84.

Allows electrons to flow easily from one place to another.

a)

Resistor

b)

Conductor

c)

Insulator

d)

Plastics

85.

Current that flows in 1 direction and is usually produced by batteries.

a)

AC

b)

DC

c)

Magnetism

d)

CC

86.

Current that flows in two directions and produced by powerplants.

a)

AC

b)

DC

c)

CC

d)

EC

87.

Which circuit below would be described as "closed"?

a)
b)
c)
88.

The push of electrons or energy from the battery is also called?

a)

Voltage

b)

Potential Difference

c)

Resistance

d)

Current

89.

If you INCREASE VOLTAGE, what happens to CURRENT?

a)

it increases

b)

it decreases

c)

it stays the same

90.

A 3 volt battery is switch out and replaced with a 6 volt battery. What happens to the resulting current?

a)

It halves

b)

It doubles

c)

It stays the same

d)

It triples

91.

The friction created by objects in a circuit that resist the flow of electrons/energy.

a)

Resistance

b)

Current

c)

Voltage

d)

Magnetism

92.

If you INCREASE RESISTANCE, what happens to CURRENT?

a)

It decreases

b)

It increases

c)

It stays the same

93.

A circuit is supplied with 9 volts of potential difference from the battery. What happens to the voltage if the resistance in the circuit is increased?

a)

It stays the same

b)

It decreases

c)

It increases

94.

A 4 ohm resistor is replaced with a 2 ohm resistor. What happens to the current in the circuit?

a)

It halves

b)

It triples

c)

It doubles

d)

It quadruples

95.

Which picture below shows a parallel circuit?

a)
b)
c)
d)
96.

In which circuit below, will all lights go out when one light is broken?

a)
b)
c)
97.
Ms Jo Jo rubbed two balloons with a piece of wool. What will happen when the balloons are brought near each other?
a)
The balloons will repel each other.
b)
The balloons will attract each other.
c)
The balloons will become positively (+) charged.
d)
The balloons will pop.
98.
What types of charges attract?
a)
Positive and Positive
b)
Positive and Neutral
c)
Negative and Neutral
d)
Positive and Negative
99.
What charge does a proton have?
a)
negative (-)
b)
positive (+)
c)
neutral or no charge (0)
100.
If a substance has a higher number of electrons than protons on its surface, what type of charge does it have?
a)
A positive charge.
b)
A negative charge.
c)
A neutral charge
d)
No charge at all
101.
What charge does an electron have?
a)
negative (-)
b)
positive (+)
c)
neutral or no charge (0)
102.
Which of the following is caused by static electricity?
a)
a stove getting hot when it is turned on
b)
a magnet being attracted to a refrigerator
c)
a lightning strike during a storm
d)
a light bulb coming on when a switch is turned on
103.
What is static electricity caused by?
a)
A balance of power
b)
A balance of positive and negative charges
c)
. An imbalance of positive and negative charges
d)
An imbalance of protons and neutrons
104.
An object becomes postiively charged when which of the following occurs?
a)
loses electrons
b)
gains electrons
c)
loses protons
d)
gains neutrons
105.
Which of the following an insulator?
a)
copper
b)
wood
c)
silver
d)
salt water
106.
Lightning is _____.
a)
a buildup of neutrons
b)
harmless
c)
a high-voltage electric current
d)
a large discharge of static electricity
107.
If two charges repel each other, the two charges must be
a)
Positive and neutra
b)
Positive and negative
c)
positive and neutral
d)
negative and negative
108.
In a neutral atom, the number of electrons is equal to the number of _______.
a)
Neutrons
b)
Orbits
c)
Protons
d)
subatomic particles
109.
If an object has the same number of positive and negative charges, its electrical charge is...
a)
positive
b)
negative
c)
neutral or no charge
d)
opposite
110.
Ms Jo Jo rubbed two balloons with a piece of wool. What will happen when the balloons are brought near each other?
a)
The balloons will repel each other.
b)
The balloons will attract each other.
c)
The balloons will become positively (+) charged.
d)
The balloons will pop.
111.
What types of charges attract?
a)
Positive and Positive
b)
Positive and Neutral
c)
Negative and Neutral
d)
Positive and Negative
112.
What charge does a proton have?
a)
negative (-)
b)
positive (+)
c)
neutral or no charge (0)
113.
What charge does an electron have?
a)
negative (-)
b)
positive (+)
c)
neutral or no charge (0)
114.
If a substance has a higher number of electrons than protons on its surface, what type of charge does it have?
a)
A positive charge.
b)
A negative charge.
c)
A neutral charge
d)
No charge at all
115.
Which of the following is caused by static electricity?
a)
a stove getting hot when it is turned on
b)
a magnet being attracted to a refrigerator
c)
a lightning strike during a storm
d)
a light bulb coming on when a switch is turned on
116.
What is static electricity caused by?
a)
A balance of power
b)
A balance of positive and negative charges
c)
. An imbalance of positive and negative charges
d)
An imbalance of protons and neutrons
117.
An object becomes postiively charged when which of the following occurs?
a)
loses electrons
b)
gains electrons
c)
loses protons
d)
gains neutrons
118.
Which of the following an insulator?
a)
copper
b)
wood
c)
silver
d)
salt water
119.
Lightning is _____.
a)
a buildup of neutrons
b)
harmless
c)
a high-voltage electric current
d)
a large discharge of static electricity
120.
If an object has the same number of positive and negative charges, its electrical charge is...
a)
positive
b)
negative
c)
neutral or no charge
d)
opposite
121.
In a neutral atom, the number of electrons is equal to the number of _______.
a)
Neutrons
b)
Orbits
c)
Protons
d)
subatomic particles
122.
If two charges repel each other, the two charges must be
a)
Positive and neutra
b)
Positive and negative
c)
positive and neutral
d)
negative and negative
123.
An object becomes charged when the atoms in the object gain or lose
a)
electrons
b)
protons
c)
neutrons
d)
all of the above
124.
If you rub a glass rod with a piece of silk, the rod becomes positively charged. This means that
a)
friction destroyed electrons in the rod.
b)
the silk has become negatively charged.
c)
protons have moved to the rod.
d)
glass attracts more protons.
125.
If you bring a charged object near an electrically neutral surface without allowing the object to touch the surface, the charges in the surface are rearranged by
a)
friction.
b)
convection.
c)
induction.
d)
conduction.
126.
Objects that have opposite charges
a)
are attracted to each other, and the force between the objects pulls them together.
b)
are attracted to each other, and the force between the objects pushes them apart.
c)
are repelled by each other, and the force between the objects pulls them together.
d)
are repelled by each other, and the force between the objects pushes them apart.  
127.
A region around a charged particle that can exert a force on another charged particle is called an
a)
electric pulse.
b)
electric charge.
c)
electric force.
d)
electric field.
128.
Charging by ____ occurs when electrons are transferred from one object to another by direct contact.
a)
reduction
b)
induction
c)
conduction
d)
friction
129.

Which of the following is not an application of electrostatics?

a)

The photocopier

b)

Defibrillator

c)

Electric bell

d)

Van de Graaf generator

130.
What is responsible for the Magnetic Field around Earth?
a)
The Earth's crust
b)
The Earth's molton iron core
c)
The Earth's mantel
d)
The Sun
131.
If you cut a magnet in half, what happens to the poles?
a)
One half gets the North Pole, the other half gets the South Pole
b)
Both halves get only a North Pole
c)
Both halves get only a South Pole
d)
Both halves get a North pole and a South Pole
132.
As the distance between two magnets increases (they get farther apart), the force between them:
a)
Increases
b)
Decreases
c)
Stays the Same
133.
What do the lines around this magnet represent?
a)
North Pole
b)
South Pole
c)
Magnetic Declination
d)
Magnetic Field
134.
Magnetism is generated by moving
a)
protons.
b)
electrons.
c)
neutrons.
d)
elements.
135.
In un-magnetized materials the domains are __________ aligned.
a)
super
b)
slightly
c)
randomly
d)
always
136.
Electric motors are devices that convert _____ energy into  _____ energy.
a)
electrical; mechanical
b)
mechanical; electrical
c)
chemical; potential
d)
mechanical; kinetic
137.
What kind of magnet can be turned on and off?
a)
refridgerator magnet
b)
electromagnet
c)
magnetite
d)
iron
138.
The strongest part of a magnet is...
a)
the bars.
b)
the force field.
c)
the poles. 
d)
the middle.
139.

If a glass plate is placed over a magnet and iron filings are sprinkled over the glass, a pattern will be visible. What does this pattern indicate?

a)

The magnetic field

b)

The electrostatic field

c)

The piezoelectric effect

d)

The chemical reaction of the magnet and the filings

140.

What causes magnetism?

a)

the sun

b)

moving neutrons

c)

moving charges

d)

friction

141.

How can a wire become magnetic?

a)

point it north

b)

add a resistor

c)

heat it up

d)

run a current through it

142.

What device takes in mechanical energy and produces electricity?

a)

motor

b)

generator

c)

electromagnet

d)

battery

143.
What is the function of a carbohydrate?
a)
Stores energy
b)
Movement
c)
Stores genetic information
d)
Speeds up reactions
144.
Which is not a chemical element needed to build sugars?
a)
Carbon
b)
Oxygen
c)
Nitrogen
d)
Hydrogen
145.
What elements make up carbohydrates?
a)
Carbon, hydrogen, nitrogen, oxygen
b)
sulfur, carbon, hydrogen
c)
glucose and fructose
d)
carbon, hydrogen, oxygen
146.
What kind of food is an example of a complex carbohydrate?
a)
Whole wheat bread
b)
Jams
c)
Honey
d)
Table sugar
147.
The simple sugar from fruit is called_____.
a)
sucrose
b)
lactose
c)
fructose
d)
maltose
148.
  Glycogen, a polysaccharide, in your liver may be broken down to glucose by the process of __________.
 
a)
hydrolysis 
b)
dehydration synthesis
dehydration synthesis
c)
 condensation
d)
 
isomerization isomerization
149.
A monomer splits from a polymer through
a)
ATP synthesis
b)
monomerization
c)
hydrolysis
d)
condensation reaction
150.
This polysaccharide is important to the structure of plant cell walls, 
a)
Starch
b)
Glycogen
c)
Cellulose
d)
Chitin
151.
Which are examples of monosaccharides?
a)
Starch and glycogen
b)
Starch and glucose
c)
Glucose and fructose
d)
Glycogen and cellulose
152.
What monosaccharide is found in fruit and honey? 
a)
fructose 
b)
sucrose 
c)
glucose 
d)
lactose 
153.
Carbohydrates are the first source of _______ for the body?
a)
repair
b)
hygiene
c)
fuel
154.
If we eat too much carbohydrate it is stored in the body as ___?
a)
fat
b)
extra cells
c)
flouride
155.
Some carbohydrate foods are ________
a)
fruits
b)
grains
c)
vegetables
d)
all the above
156.
_____________ carbohydrates come from sugar. They do not supply many nutrients.
a)
complex
b)
optional
c)
simple
d)
loaded
157.
Simple carbohydrates do not supply any _________________.
a)
fiber
b)
fuel
158.
An example of a simple carbohydrate could be ________________.
a)
bread
b)
oatmeal
c)
cupcake
d)
pasta
159.
Different sugars all end in the suffix _____
a)
ly
b)
itis
c)
ose
d)
ion
160.
The simple sugar from fruit is called_____.
a)
sucrose
b)
lactose
c)
fructose
d)
maltose
161.
The simple sugar in milk is ________.
a)
lactose
b)
maltose
c)
sucrose
d)
fructose
162.
______________ carbohydrates supply longer lasting energy.
a)
simple
b)
complex
c)
generic
163.
complex carbohydrates contain many nutrients and also contain__________
a)
fiber
b)
protein
164.
The following is an example of a complex carbohydrate
a)
can of pop
b)
poptart
c)
sweet potato
d)
Snickers
165.
Beans are a good source of carbohydrates. 
a)
true
b)
false 
166.
When choosing carbohydrates, try and choose ___________ carbs.
a)
complex
b)
simple
167.
Corn syrup is an a type of simple carbohydrate added to sweeten foods. 
a)
true 
b)
false

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