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Thermal Energy and Heat Transfer

Total questions: 48

Worksheet time: 8hrs 0mins

Name
Class
Date
1.

The total energy of all the particles in a substance is called

a)

temperature

b)

thermal energy

c)

degrees

d)

mass

2.

The movement of thermal energy from a warmer object to a cooler object is called

a)

heat

b)

temperatur

c)

motion

d)

momentum

3.

Heat transfer occurs

a)

in many directions

b)

both from warm objects to colder ones and from cold objects to warmer ones

c)

only from warm objects to colder ones

d)

only from cold objects to warmer ones

4.

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

5.
What happens to particles as they heat up?
a)
They slow down
b)
Nothing
c)
They don't move
d)
They speed up
6.
What happens to particles as they cool down?
a)
They slow down
b)
Nothing
c)
They don't move
d)
They speed up
7.
Hot objects begin to cool as-
a)
cooler air is transferred to the hot object.
b)
thermal energy in the object is transferred to the surrounding air.
c)
atoms in the object react with the oxygen in the air.
d)
thermal energy in the object cancels out energy in the air
8.

Which particles are moving fastest?

a)

Particles in ice.

b)

Particles in boiling water.

c)

Particles in water from the sink.

d)

Particles in steam.

9.

An increase in the volume of a material due to a temperature increase in the material.

a)

Thermal contraction

b)

Thermal expansion

c)

Thermal heat

10.

The amount of heat needed to raise the temperature of one gram of a material by one degree Celsius is called

a)

Specific Temperature.

b)

Specific Heat

c)

Absolute Heat

11.

The lower a material's specific heat, the more its temperature rises when a given amount of energy is absorbed by a given mass.

a)

True

b)

False

12.

The transfer of thermal energy when particles of a fluid move from one place to another is called

a)

conduction.

b)

convection.

c)

radiation.

13.

The transfer of energy by waves moving through space is called

a)

conduction.

b)

convection.

c)

radiation.

14.

The transfer of thermal energy when particles of a fluid move form place to place.

a)

conduction

b)

convection

c)

radiation

15.
LT3: If two objects have different temperatures, heat will flow from the warmer object to the cooler one UNTIL ____________
a)
one reaches a temperature of zero
b)
they both have an equal temperature
c)
one runs out of energy
16.
LT4: When heat is transferred from one particle of matter to another without the movement of the matter it is called
a)
conduction
b)
convection
c)
radiation
17.
LT4: Identify the heat transfer occurring in this picture
a)
conduction
b)
convection
c)
radiation
18.
LT4: Identify the heat transfer happening in this image
a)
conduction
b)
convection
c)
radiation
19.
LT5: A material that conducts heat well is called a
a)
conductor 
b)
insulator 
20.
LT5: A material that does not conduct heat well is called 
a)
conductor (ex. spoon, metals)
b)
insulator (ex. wood, wool, straw, paper)
21.

The transfer of energy through molecules in direct contact is ...

a)

Heat

b)

Conduction

c)

Convection

d)

Radiation

22.
The flow of energy that occurs when a warm liquid or gas rises ..
a)
Heat
b)
Conduction
c)
Convection
d)
Radiation
23.
The transfer of energy by electromagnetic waves.
a)
Heat
b)
Conduction
c)
Convection
d)
Radiation
24.
In a lava lamp, the warm part rises and the cool part sinks.  This is an example of 
a)
heat computation
b)
convection
c)
conduction
d)
radiation
25.
The rubber that makes up the handle on the pan is considered a thermal ___________________ because thermal energy moves slowly through this material.
a)
conductor
b)
insulator
c)
regulator
d)
temperature
26.
_________________ are observed in liquids and gases (air).
a)
convection currents
b)
radiation waves
c)
thermal conductivity
d)
conductors
27.
What  is the formula to calculate heat energy required to raise the temperature of any substance?
a)
Q=mc∆t
b)
Q=mc
c)
Q= ½mv
d)
m=QC
28.
 How many joules of heat are needed to raise the temperature of 10.0 g of aluminum from 22°C to 55°C, if the specific heat of aluminum is 0.90 J/gx°C?    
a)
297 Joules
b)
0.003 Joules
c)
297 J/gx°C
d)
0.003 J/gx°C
29.
In convection, WARM air
a)
Rises
b)
Sinks
30.
In convection, COOL air
a)
Rises
b)
Sinks
31.
Warm air is __________ dense than cold air and rises creating convection currents.
a)
more
b)
less
32.
The cycle that powers the ocean currents, weather, and tectonic plates it called
a)
conduction current
b)
radiation
c)
condition current
d)
convection current
33.

Warm air that rises above the Earth's surface creates a ______________ area?

a)

high pressure

b)

low pressure

c)

no pressure

d)

sinking

34.

Cool/cold air that sinks towards the Earth's surface creates a ______________ area?

a)

high pressure

b)

low pressure

c)

no pressure

d)

pressure free

35.
Which of the following describes what is happening in a low pressure system?
a)
cold air sinking
b)
cold air rising
c)
warm air rising
36.
Which of the following describes what is happening in a high pressure system?
a)
cold air sinking
b)
cold air rising
c)
warm air rising
37.
What is the heat source for convection in the mantle?
a)
the Crust
b)
the Mantle
c)
the Core
38.
What is the cooling source for convection in the mantle?
a)
the Crust
b)
the Mantle
c)
the Core
39.
When molten  material is heated in the mantle it becomes
a)
more dense
b)
less dense 
40.
When molten  material is cooled in the mantle it becomes
a)
more dense
b)
less dense 
41.
Molecules that are more dense than the surrounding particles will...
a)
rise up
b)
sink down
c)
stay put
42.
Molecules that are less dense than the surrounding particles will...
a)
rise up
b)
sink down
c)
stay put
43.
When molten  material is cooled in the mantle the molecules
a)
expand (spread out)
b)
condense (shrink together) 
c)
stay the same
44.

Which of the following is one reason Earth's tectonic plates to move?

a)

energy from the Sun

b)

magnetic Pole Reversal

c)

convection currents in the mantle

d)

faults in Mountain Ranges

45.

Convection cycles move in the mantle. How does this affect the crust?

a)

crust has no motion

b)

crust moves in random directions

c)

crust moves in same direction convection cycle moves

46.
At the seashore late in the afternoon on a hot day, a person often feels a strong breeze coming from the ocean because...
a)
the pounding waves generate air currents
b)
warm air over the ocean rushes in to replace the cool air that rises over the land
c)
the heavy, cool air over the ocean rushes in to replace the warm air that rises over the land
d)
there are no clouds to block the wind coming in from the ocean
47.

What type of breeze is this?

a)

Land Breeze

b)

Sea Breeze

c)

Mountain Breeze

d)

Valley Breeze

48.

What type of breeze is this?

a)

Land Breeze

b)

Sea Breeze

c)

Mountain Breeze

d)

Valley Breeze

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