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Physics Choice Board: Thermal Energy

Total questions: 30

Worksheet time: 23mins

Name
Class
Date
1.
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
2.
The transfer of thermal energy between objects of different temperatures is called...
a)
temperature
b)
heat
c)
internal energy
d)
none of these
3.
True/False: when two substances reach the same temperature they are in thermal equilibrium.
a)
True
b)
False
4.
Temperature is a measure of the...
a)
total energy in a substance
b)
total kinetic energy in a substance
c)
average potential energy in a substance
d)
average kinetic energy of molecules in a substance
5.
High temperature is connected to:
a)
Low kinetic energy.
b)
High kinetic energy.
c)
Zero net energy.
d)
Equal kinetic energies.
6.
Which cools at a faster rate, a pot of boiling water left at room temperature or a same-sized pot of warm water left at room temperature?
a)
boiling water
b)
warm water
c)
both cool at an equal rate
7.
Polystyrene is a good heat...
a)
emitter
b)
absorber
c)
conductor
d)
insulator
8.

When flying, some birds use warm air currents to gain height.

What is the cause of these currents?

a)

conduction

b)

convection

c)

evaporation

d)

radiation

9.

A swimmer feels cold after leaving warm water on a warm, windy day. Why does she feel cold even though the air is warm?

a)

The less energetic water molecules on her skin escape quickly.

b)

The more energetic water molecules on her skin do not escape quickly.

c)

The water on her skin does not evaporate quickly enough to keep her warm.

d)

The water on her skin evaporates quickly and cools her skin.

10.

What is the name of the process of heat transfer using electromagnetic waves?

a)

conduction

b)

convection

c)

evaporation

d)

radiation

11.

The diagram shows electricity cables being put up on a warm day. The cables are left loose between the poles, as shown in the diagram. Why are the cables left loose?

a)

They will contract on cold days.

b)

They will contract on very warm days.

c)

They will expand on cold days.

d)

They will expand on very warm days.

12.

matter in which atoms are closely spaced and vibrate in a fixed position.

a)

solid

b)

liquid

c)

gas

d)

water vapor

13.

Matter in which atoms are constantly moving around and bumping into each other.

a)

mass

b)

gas

c)

liquid

d)

solid

14.

Matter in which atoms vibrate so much that they are far apart.

a)

liquid

b)

solid

c)

gas

d)

thermal energy

15.
Warm air rises and the cool air sinks demonstrates this type of heat transfer. 
a)
conduction
b)
convection
c)
radiation
d)
Insolation 
16.
Radiation is a method of thermal energy transfer that moves -
a)
through empty space.
b)
when objects touch.
c)
only through solids.
d)
in the motion of fluids.
17.
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
18.
In what direction do hot liquids and gasses move?
a)
Side to Side
b)
Down
c)
Up
d)
Back and Forth
19.

In the real world, does the transformation of Mechanical Energy to Work create some Thermal Energy as waste?

a)

Yes

b)

No

c)

I don't know

d)

Maybe

20.
As the thermal energy of a substance increases, its particles spread out and the substance expands.
a)
True
b)
False
21.
What is the freezing point on the celsius scale?
a)
0
b)
32
c)
100
d)
-100
22.
Thermal energy and temperature are the same.
a)
True
b)
False
23.

What is the Freezing Point on the Fahrenheit Scale?

a)

0 degrees

b)

32 degrees

c)

100 degrees

d)

212 degrees

24.

A process that creates new substances from existing substances and can absorb or release thermal energy

a)

chemical reaction

b)

thermal energy

c)

temperature

d)

kinetic energy

25.
Heat transfers from an area of ____temperature to an area of ___ temperature.
a)
high to low
b)
low to high
c)
high to high
d)
It can travel high to low and low to high. 
26.

Which container was the most effective at preventing heat transfer from the water to the environment? (In other words, which was the best insulator and kept heat in?)

a)

Container P

b)

Container Q

c)

Container R

d)

Container S

27.
What two kinds of heat transfer are represented?
a)
stove→pot=radiation pot→egg=conduction
b)
stove→pot=conduction pot→egg=radiation
c)
stove→pot=convection pot→egg=conduction
d)
stove→pot=conduction pot→egg=convection
28.

On a cold rainy day a baby is touching a cold window. It feels so cold. Which way is the heat moving?

a)

Cold is moving from the window to the hand.

b)

Heat is moving from the hand to the window.

c)

Heat doesn't move.

d)

It moves in currents

29.
The Gulf Stream is a current that brings warm ocean water from the south to the north. What type of heat transfer is this?
a)
conduction
b)
convection
c)
radiation
d)
insulation 
30.

Kamea leaves chocolate pudding out on the counter which is at "room temperature". What will happen if the pudding is not put back into the refrigerator after several hours?

a)

The pudding will increase in temperature, but the counter temperature will remain the same.

b)

The pudding and the counter will become lower temperatures.

c)

The pudding and the counter will become higher temperatures.

d)

The pudding and the counter will become the same temperature.