Thermal energy Stemscopes notes:
1. What is another term for thermal energy? HEAT ENERGY
2. How will heat be transferred?
Heat goes from the hot plate to the water by CONDUCTION.
3. The transfer of heat energy that occurs through empty space is known as: RADIATION
4. What does not readily transfer heat energy? INSULATORS
5. Three rock samples with different temperatures are placed side by side as shown in the
picture provided. In which direction will heat energy move?
From Sample #2 to Sample #1 and #3
6. Example of thermal energy transfer: Energy moving from the hot coils of a stove to a
pan
7. Thermal energy transfers heat from: Warm objects to cool objects
8. Example of conduction: A ceramic mug becoming warmer after coffee is poured into it
9. A student notices that the saucer below a coffee cup becomes warmer after coffee is
poured into the cup. Which type of heat transfer has occurred to heat the saucer?
CONDUCTION
10. Sometimes when you jump into a swimming pool, you notice that the water is colder
near the bottom of a pool. As you swim in the pool, the water gets mixed up. What
process involves the spreading of heat throughout the water? CONVECTION
11. Examine the diagram provided. The diagram shows how sea breezes form as warm air
over the land rises and cool ocean air moves inland. This movement of air is an example
of:
CONVECTION
12. While seated next to a camp fire, a person begins to feel the warmth of the fire. Which
type of energy transfer does the camper experience? RADIATION
13. All of the following are examples of heat transfer by radiation EXCEPT: D
A Solar energy warming the earth
B Heat rising from the red hot coils of a stove
C A light bulb warming the surrounding air
D Heat moving from a clothes iron to the fabric as a shirt is ironed
14. Examine the drawing provided. Four steel blocks were heated to different temperatures
and stacked together as shown. Heat energy will move in all of the following directions
EXCEPT: D
A From #4 to #1
B From #2 to #3
C From #2 to #4
D From #3 to #2
15. Why does ice melt when placed in a container that is at room temperature? Heat
moves from the air and the container into the ice.
16. Examine the table provided. Four different cups contain the same amount of hot liquid.
Which material best reduces the conduction of heat between the cup and the outside air?
STYROFOAM
17. What tools would be most useful in an experiment measuring the rate of transfer of
thermal energy in four different liquids? Hot plate, beaker, thermometer.
18. Examine the image provided. In an energy transfer experiment, four rocks of different
temperatures are placed against each side of a large block of ice. On which side of the
block of ice will the most melting occur? NORTH
19. In an experiment, a student places 500 mL of water in a beaker along with several grains
of rice. After heating the water on a hot plate, she pours in 40 mL of cold water and
records the movement of the grains of rice. What is her experiment designed to test?
CONVECTION
20. Examine the table provided. Four insulating containers are filled with warm water and an
initial temperature is recorded. Twenty minutes later, the temperature of the water is
recorded again. Which container is the best insulator and limits the transfer of heat?
CONTAINER P
21. Examine the diagram provided. A student uses a Bunsen burner to heat water in a glass
beaker as shown. What type of energy transfer is occurring in area 3? D. RADIATION
A. Insulation B. Convection C. Conduction D. Radiation