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Worksheets8th Grade Chapter 8 Review
Total questions: 71
Worksheet time: 1hrs 11mins
Name
Class
Date
1.
Heat is a form of _______________.
a)
movement
b)
energy
c)
melting
2.
Heat makes things _______________________
a)
colder
b)
warmer
c)
faster
3.
What will happen to ice if you leave it out in the room?
a)
it will melt
b)
it will stay the same
c)
it will freeze
4.
Something will melt faster in the _______________.
a)
shade
b)
freezer
c)
sun
5.
Does this give off heat?
a)
yes
b)
no
6.
Does this give off heat?
a)
yes
b)
no
7.
Does this give off heat?
a)
yes
b)
no
8.
Does this give off heat?
a)
yes
b)
no
9.
Does this give off heat?
a)
yes
b)
no
10.
Does this give off heat?
a)
yes
b)
no
11.
what is the meaning of convection?
a)
cold rises heat falls
b)
heat
c)
cold
d)
hot rises cold falls
12.
what is the meaning of conduction
a)
when heat transfers from objects that are not touching
b)
heat rise
c)
cold fall
d)
when heat transfers from objects that are touching
13.
what kind of heat is happening when the sun heats your body
a)
conduction
b)
convection
c)
density
d)
radiation
14.
heat rises
a)
true
b)
false
15.
heat energy traveling through space is an example of _____
a)
convection
b)
density
c)
radiation
d)
conduction
16.
The sun shines down on this family as the play on the beach.
a)
conduction
b)
convection
c)
radiation
17.
A group of friends gather around a fire to stay warm.
a)
conduction
b)
convection
c)
radiation
18.
The Gulf Stream is a current that brings warm ocean water from the south to the north.
a)
conduction
b)
convection
c)
radiation
19.
Walking on the warm sand sand with your bare feet.
a)
conduction
b)
convection
c)
radiation
20.
The man goes to take the hot pot off the stove with his bare hands.
a)
conduction
b)
convection
c)
radiation
21.
Warm air rises and the cool air sinks.
a)
conduction
b)
convection
c)
radiation
22.
The baby chickens are kept warm from the heat lamps.
a)
conduction
b)
convection
c)
radiation
23.
In some cultures, walking on fire is the ultimate sign of strength.
a)
conduction
b)
convection
c)
radiation
24.
In this experiment, the WARM red dye and the COLD blue dye was placed in the water at the same time. The warm red dye rose to the top while the cold blue dye sank to the bottom.
a)
conduction
b)
convection
c)
radiation
25.
The candle will slowly heat the metal and transfer the heat directly to the mans hand.
a)
conduction
b)
convection
c)
radiation
26.
Johnny accidentally grabbed the handle of the hot pot.
a)
conduction
b)
convection
c)
radiation
27.
The warm air from this heater creates a current when the warm air rises and the cold air sinks.
a)
conduction
b)
convection
c)
radiation
28.
Heat transfers from an area of ____temperature to an area of ___ temperature.
a)
high to low
b)
low to high
c)
high to high
29.
The chocolate bunny and the iron.
a)
conduction
b)
convection
c)
radiation
30.
The chocolate bunny and the lamp.
a)
conduction
b)
convection
c)
radiation
31.
The molecules of a liquid vs. a solid....
a)
Move slower in a liquid.
b)
Move slower in a solid.
32.
If you place some Gatorade in a cooler with ice...
a)
It's particles will speed up.
b)
It's particles will slow down.
33.
A measure of the average kinetic energy of the individual particles in an object is called:
a)
thermal energy
b)
conduction
c)
convection
d)
temperature
34.
To turn a liquid into a gas, you _____ energy.
a)
Add
b)
Remove
35.
Observe the diagram. Which statement is true about the kinetic energy of the molecules in the containers?
a)
The molecules are moving faster in Diagram A
b)
The molecules are moving slower in Diagram A
c)
The molecules are moving at the same rate in both diagrams
36.
Which of the following containers of sand has atoms/molecules with the greatest average kinetic energy?
a)
1 kg at 20oC
b)
2 kg at 20oC
c)
4 kg at 20oC
d)
none has a greater amount because all have the same average kinetic energy
37.
What would be the effect on the particles if more heat is supplied to the system?
a)
They would slow down
b)
They would stop moving
c)
They would speed up
d)
There would be no effect
38.
There are four cups of hot cocoa. The cup sizes are shown. The temperature of the cocoa in each cup is 25 degrees celsius. Which cup has the MOST thermal energy?
a)
Large cup (Trenta)
b)
Small cup (Tall)
c)
Venti
d)
All three are the same temperature so they have same thermal energy
39.
Which description defines heat?
a)
total thermal energy of an object or substance
b)
change in the temperature of a substance in degrees Celsius
c)
energy transferred between objects at different temperatures
d)
average kinetic energy of the particles that make up a substance
40.
Water has a specific heat of 4184 J/KgºC. Wood has a specific heat of 1760 J/KgºC. What material needs more energy to raise the temperature 1ºC
a)
Wood
b)
Water
c)
Both are the same
41.
A high specific heat means...
a)
It heats up quickly with energy added
b)
It requires more energy to change temperature
42.
The three types of heat transfer are...
a)
spilling hot soup in your lap
b)
hot, hotter, and hottest
c)
conduction, convection and radiation
d)
conduction, convection and tickling
43.
Conduction=
a)
physical contact
b)
warm air rising
c)
heat moving through empty space
d)
say what?
44.
Radiation=
a)
physical contact
b)
warm air rising
c)
heat moving through empty space
d)
say what?
45.
Convection=
a)
physical contact
b)
warm air rising
c)
heat moving through empty space
d)
say what?
46.
When you hold your hands by a fire what type of heat transfer is warming your hands?
a)
convection
b)
conduction
c)
radiation
d)
dance magic
47.
In class we put some candles on a medal spoon. We help one end of the spoon over a flame and watched the heat travel through the spoon and melt the candles on the other side. What kind of heat transfer was this?
a)
conduction
b)
radiation
c)
convection
d)
Harry Potter
48.
Everyday the earth is warmed by the sun. What kind of heat transfer is taking place in this process?
a)
radiation
b)
conduction
c)
convection
d)
what is a 'sun'?
49.
_____________ occurs when warm air rises and is replaced by cooler air
a)
convection
b)
conduction
c)
radiation
50.
Which of the following is NOT a form of heat transfer?
a)
decay
b)
conduction
c)
convection
d)
radiation
51.
Which example involves heat transfer through radiation
a)
sitting next to a fire
b)
adding ice to coffee
c)
heating a frying pan on a stove
d)
warm air rising
52.
The sun shines down on this family as the play on the beach.
a)
conduction
b)
convection
c)
radiation
53.
Blow drying your wet hair.
a)
conduction
b)
convection
c)
radiation
54.
Which direction will the heat flow while this person holds a hot cup of tea?
a)
from the cup to her hand
b)
from her hand to the cup
c)
no heat is transferred
55.
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.
d)
When heat transfers through the heater or AC in your house.
56.
What kind of heat transfer happens when the sun is heating your body?
a)
Conduction
b)
Radiation
c)
Convection
d)
Density
57.
What heat transfer happens when you burn your hand by touching a fire?
a)
Radiation
b)
Conduction
c)
Convectio
d)
I don't know!!!!!!!!!!!
58.
Warm air rises and the cool air sinks demonstrates this type of heat transfer.
a)
conduction
b)
convection
c)
radiation
d)
Insolation
59.
Ironing a shirt is an example of...
a)
condensation
b)
conduction
c)
convection
d)
radiation
60.
Warm air is __________ dense than cold air and rises creating convection currents.
a)
more
b)
less
61.
Johnny accidentally grabbed the handle of the hot pot.
a)
conduction
b)
convection
c)
radiation
62.
Transfer of thermal energy through "space"
a)
conduction
b)
convection
c)
radiation
63.
The way the heat is moving from the hot coffee is called...
a)
convection
b)
radiation
c)
insulation
d)
conduction
64.
The baby chickens are kept warm from the heat lamps demonstrates this type of heat transfer.
a)
conduction
b)
convection
c)
radiation
65.
Conduction occurs in...
a)
solids
b)
liquids
c)
gases
66.
Heat would best be transferred by conduction between
a)
a candle and the air.
b)
an oven and a glass dish.
c)
a stove and a copper pot.
d)
water and a wooden spoon
67.
A toaster toasting bread is an example of
a)
condensation
b)
conductio
c)
convection
d)
radiation
68.
What happens when ice cubes melt in a glass?
a)
Heat travels from the ice to the warmer water.
b)
No energy is transferred.
c)
Heat is transferred from the warmer water to the ice cubes.
d)
The water warms up due to the humidity
69.
An insulator . . .
a)
Allows a lot of heat to escape
b)
Makes the temperature of an object rise
c)
Moves heat from one place to another
d)
Traps heat inside an object
70.
What is the definition for RADIATION?
a)
The transfer of energy along electromagnetic waves
b)
The transfer of heat between objects that are in direct contact.
c)
Transfer of heat through a liquid or gas. As it heats, it rises and as it cools, it sinks.
d)
None of the above
71.
What is the definition of CONVECTION
a)
The transfer of energy along electromagnetic waves
b)
The transfer of heat between objects that are in direct contact.
c)
Transfer of heat through a liquid or gas. As it heats, it rises and as it cools, it sinks.
d)
None of the above
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