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Unit 6b In-Class Review

Total questions: 65

Worksheet time: 2hrs 46mins

Name
Class
Date
1.

What is the temperature of the thermometer?

a)

42° C

b)

43° C

c)

44° C

d)

45° C

2.

What is the temperature of the thermometer?

a)

26° C

b)

27° C

c)

28° C

d)

29° C

3.

What is the temperature of the thermometer?

a)

49° C

b)

40° C

c)

39° C

d)

41° C

4.

What is a transfer of heat energy by electromagnetic waves? (a)  

Choose from the below words
Radiation
Convection
Conduction
Heat
5.

What is the transfer of heat by direct contact? (a)  

Choose from the below words
Convection
Electromagnetic waves
Radiation
Conduction
6.

Heat transfers from an area of (a)   temperature to an area of (b)   temperature.

Choose from the below words
high to low
low to high
high to high
7.

Heat transfer by convection happens when:

a)

there is a circulation of hot air/water rising and cold air/water sinking

b)

there is space that heat travels through in waves outwardly

c)

two objects are touching and heat moves from one object into the next object.

8.

Weather Patterns...

a)

Conduction

b)

Convection

c)

Radiation

9.

How does heat flow?

a)

block R to block S

b)

block S to block R

c)

heat does not flow between them

10.

How does heat flow?

a)

object C to object D

b)

object D to object C

c)

heat does not flow between them

11.
Why is there more thermal energy in an iceberg than in a pot of boiling water?    
a)
a.  The pot insulates the heated molecules
b)
b.  Most icebergs are fairly warm to the touch
c)
  c.  Icebergs contain many more molecules than pots of water
d)
  d.  Water does not hold heat very well
12.

In which region(s) does temperature increase? (a)  

Choose from the below words
Region C only
Regions B and D
Regions A, C, and E
Regions A and B
13.

At which letter is the substance changing its state of matter?

a)

A only

b)

A, C, and E

c)

D and E

d)

B and D

14.

Between which two points is the gas condensing?

a)

A <---- B

b)

B <---- C

c)

C <---- D

d)

D <---- E

e)

E <---- F

15.
Between which points is the temperature of the substance remaining constant?
a)
A-B only. 
b)
A-B, C-D, E-F
c)
B-C only. 
d)
B-C, D-E
16.
What type of heat transfer takes place in solids?
a)
Conduction
b)
Convection
c)
Radiation
17.
As you move from point E to point A describe how particle movement changes? 
a)
They speed up because heat is being added. 
b)
They speed up because heat is being removed. 
c)
They slow down because heat is being added.
d)
They slow down because heat is being removed. 
18.

The diagram above represents a thermometer. Which of the following best explains how the thermometer works?

a)

Liquid changes to a gas when heated.

b)

Gas changes to a liquid when heated.

c)

Liquids expand when heated and contract when cooled.

d)

Liquids contract when heated and expand when cooled.

19.

A substance's heating curve is shown in the graph. What is its boiling point? (Diagram B)

a)

100 C

b)

60 C

c)

80 C

d)

20 C

20.
True or false: melting and freezing occur at the same temperature!
a)
True
b)
False
c)
I don't know
21.
Which direction is heat flowing in the picture?
a)
from the hand to the ice
b)
from the ice to the hand
c)
heat is not being transferred
d)
there is no way to tell
22.

The change from liquid to gas is called....

a)

freezing

b)
evaporation
c)
condensation
d)

melting

23.
Which sentence explains why a cold metal spoon placed in a pot of boiling water becomes hot?
a)
Thermal energy is transferred from the spoon to the water.
b)
Thermal energy is transferred from the water to the spoon.
c)
Thermal energy in the water is transformed into kinetic energy in the spoon.
d)
Thermal energy in the spoon is transformed into kinetic energy in the water.
24.
The opposite phase of melting is 
a)
freezing 
b)
sublimation
c)
condensation 
d)
deposition 
25.

Which section of the phase change diagram is indicated?

a)

liquid

b)

solid

c)

melting

d)

freezing

26.

Vaporization is the change from

a)

Liquid to Gas

b)

Solid to Liquid

c)

Gas to Solid

d)

Solid to Gas

27.

A substance with a HIGH specific heat capacity:

a)

Take a long time to heat up and cool down

b)

Never freezes

c)

Takes a short time to heat up and cool down

d)

Is always a solid

28.

Which of the following images best represents the particle model of a liquid?

a)
b)
c)
29.

Which beaker has particles representing a solid?

a)
b)
c)
30.
Of these three states of matter, which one has the most kinetic energy? 
a)
Solid 
b)
Liquid 
c)
Gas
31.

The thermal energy transfer being shown in this image is...

a)

conduction

b)

convection

c)

radiation

32.

What is specific heat?

a)

The amount of heat needed to raise the temperature of 1 kg of a material by 1 °C or K

b)

The sum of kinetic and potential energy of the particles in an object

c)

The transfer of energy from one object to another

d)

The measure of the average kinetic energy of particles in an object

33.

What makes chocolate melt in your hand?

a)

The thermal energy gained by your hand is equal to thermal energy gained by the chocolate bar

b)

The thermal energy lost by your hand is NOT equal to thermal energy gained by the chocolate bar

c)


The thermal energy lost by your hand is equal to thermal energy gained by the chocolate bar

d)

The thermal energy gained by your hand is NOT equal to thermal energy gained by the chocolate bar

34.

What is thermal energy?

a)

The sum of kinetic and potential energy of the particles in an object

b)

The transfer of energy from one object to another

c)

The measure of the average kinetic energy of particles in an object

d)

The thermal energy that is moving or is capable of moving

35.

Conduction

a)

The transfer of energy by electromagnetic waves.

b)

A circular motion of air that causes wind and changes in weather

c)

A type of heat transfer that occurs through the movement of fluids.

d)

The transfer of energy from one particle of matter to another within an object or between two objects that are in direct contact.

36.

When matter goes from a gas to a liquid, the molecules ____________.

a)

Expand and slow down

b)

Contract and slow down

c)

Contract and speed up

d)

Expand and speed up

37.

Thermal energy always moves from areas of ______ heat to areas of ______ heat.

a)

low -- high

b)

high -- low

c)

high -- high

d)

low -- low

38.

As temperature increases, molecules _____________

a)

move slower

b)

move the same

c)

move faster

d)

stop moving

39.
_________________ are observed in liquids and gases (air).
a)
convection currents
b)
radiation waves
c)
thermal conductivity
d)
conductors
40.
Which example below is an example of conduction?
a)
Boiling macaroni
b)
The attic is warmer than the basement
c)
The Sun heating the Earth
d)
Touching hot sand with your feet
41.
Which example below is an example of convection?
a)
Standing on a hot metal bridge
b)
The attic is warmer than the basement
c)
The Sun heating the Earth
d)
Touching hot sand with your feet
42.
Which example below is an example of radiation?
a)
Standing on a hot metal bridge
b)
The attic is warmer than the basement
c)
The Sun heating the Earth
d)
Touching hot sand with your feet
43.

_____ reactions usually feel hot!

a)

endothermic

b)

exothermic

44.

____ reactions usually feel cold.

a)

endothermic

b)

exothermic

45.
Is photosenthysis an Exothermic or an Endothermic reaction?
a)
Endothermic
b)
Exothermic
46.

You freeze juice to make ice pops.

a)

exothermic

b)

endothermic

47.

Your family uses candles to see when the electricity goes out.

a)

exothermic

b)

endothermic

48.

Solid --> liquid --> gas is what type of reaction?

a)

endothermic

b)

exothermic

c)

catalytic

d)

inhibited

49.

In an endothermic reaction, energy is _________.

a)

absorbed

b)

released

50.
Which thermometers temperature is about  25° Celcius?
a)
Blue
b)
Green
c)
Blue
d)
Blue and Green
51.

The measure of the average kinetic energy of a substance measures the substances _______.

a)

Density

b)

Surface Area

c)

Pressure

d)

Temperature

52.

The diagram below represents a thermometer. Which principle best explains how this thermometer works?

a)

A gas changes to a liquid when heated.

b)

A liquid changes to a gas when heated.

c)

A liquid expands when heated and contracts when cooled.

d)

A liquid contracts when heated and expands when cooled.

53.

Complete the statement below based on the diagram below and your knowledge of science. This diagram illustrates that the more particles a substance has at a given temperature, _______.

a)

the more thermal energy it has.

b)

the higher its temperature.

c)

the more degrees it has.

d)

the more kelvins it has.

54.

Which diagram correctly shows the processes that change the states of matter?

a)

Diagram A

b)

Diagram B

c)

Diagram C

d)

Diagram D

55.

The diagram shows a series of phase changes. Which of the following happens as the phases change from A to B to C?

a)

The molecules move faster and gain energy.

b)

The molecules move slower and lose energy.

c)

The molecules move further apart.

d)

The molecules move faster.

56.

The diagram below shows the heating of water. The main method of heat transfer occurring within the water as shown by the arrows is called _____.

a)

convection

b)

conduction

c)

insolation

d)

radiation

57.

The temperature at which a solid phase changes into a liquid phase is called _____.

a)

melting point

b)

condensation point

c)

absolute zero

d)

evaporation point

58.

The temperature at which a gas phase changes into a liquid phase is called _____.

4 lines
59.

The diagrams shown below represent two solids and the temperature of each. When the two solids contact each other, which statement best explains what will occur?

a)

Heat energy flows from solid A to solid B. Solid A decreases in temperature.

b)

Heat energy flows from solid A to solid B. Solid A increases in temperature.

c)

Heat energy flows from solid B to solid A. Solid B decreases in temperature.

d)

Heat energy flows from solid B to solid A. Solid B increases in temperature.

60.

A student obtained the following data while heating a substance. The substance was originally in the solid phase at a temperature below its melting point. What is the melting point of the substance?

a)

15°C

b)

46°C

c)

53°C

d)

65°C

61.

At which two points does the solid phase of matter exist according to the phase change diagrams?

a)

Points A and L

b)

Points D and J

c)

Points G and H

62.

Look at segment B on Phase Change Diagram, GRAPH 1, above. If heat is added to this substance, what phase change is occurring at point B?

a)

Freezing

b)

Melting

c)

Condensation

d)

Evaporation

63.

Look at segment K on Phase Change Diagram, GRAPH 2, above. If heat is removed (cooling) from this substance, what phase change is occurring at point K?

a)

Freezing

b)

Melting

c)

Condensation

d)

Evaporation

64.

Look at segment B on the Phase Change Diagram, GRAPH 1, above. If heat is being added, what happens to the temperature during this phase change?

a)

Increases

b)

Decreases

c)

Stays the same

65.

Look at segment G on the Phase Change Diagram, GRAPH 1, above. Explain how the particle movement changes as heat is added.

a)

Particles decrease in speed

b)

Particles increase in speed

c)

The particles do no change speed

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