heat transfer
Presentation
•
Science
•
5th - 6th Grade
•
Medium
Standards-aligned
Shatillia Joyner
Used 228+ times
FREE Resource
12 Slides • 5 Questions
1
Heat
thermal energy and can not be created or destroyed
2
Heat
This process of heat transfer can occur in three ways:
—conduction, radiation, or convection.
3
conduction
Transfer of heat by direct contact is called conduction.
Conduction transfers heat energy in solids
4
Conduction
Imagine holding an ice cube in your hand.
The faster-moving molecules in your warm hand bump against the slower-moving molecules in the cold ice.
How is heat being transferred from the flat irons to the hair?
5
Multiple Choice
6
Radiation
Heat transfer by radiation occurs when energy is transferred by electromagnetic waves.
Objects and substances are NOT touching in order for radiation to occur.
7
8
Radiation
The Sun and fire are major sources of radiation.
Why?
9
Multiple Choice
10
Open Ended
11
Radiation
The warmth you feel when you sit next to a fireplace is due to heat transferred by radiation from the fire to your skin.
12
Multiple Choice
13
Convection
the movement of thermal energy by the movement of liquids or gases.
14
Convection
Thermal energy is transferred to the water molecules at the bottom of the pot from the stove.
15
Convection
Because the molecules are farther apart in the warm water, this water is less dense than the cooler water.
As a result, the warm water rises and is replaced at the bottom of the pot by cooler water.
The cooler water is heated, rises, and the cycle is repeated until all the water in the pot is at the same temperature.
16
Multiple Choice
17
Explain the heat transfer process in this picture
Heat
thermal energy and can not be created or destroyed
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