
Energy transfer part 1
Presentation
•
Science
•
7th Grade
•
Medium
Kim Bishop
Used 9+ times
FREE Resource
8 Slides • 12 Questions
1
Energy transfer
part 1 - Conduction and Convection
Learning objectives:
1) Recall the differences in the states of matter (particle theory)
2)Learn the process of conduction in solids using the particle model
3)Learn applications of conduction in terms of thermal energy transfer from high temperature to lower temperature
4)Learn how convection occurs
2
Heat is transferred from high T to low T
3
Fill in the Blanks
Type answer...
4
Watch the video: 10 minutes!
https://www.youtube.com/watch?time_continue=3&v=kNZi12OV9Xc&feature=emb_logo
The video is also attached to the one note page for this lesson.
Ensure you write definitions of Conduction, Convection and Radiation in your books.
5
Multiple Choice
What is the "keyword" for convection?
mass
density
matter
volume
6
Multiple Choice
What is the "keyword" for Conduction?
Wave
Density
Mass
Contact
7
Multiple Choice
What is the best material for the heat to be transferred by conduction?
Liquid
Gas
Solid
8
Multiple Choice
Do you think metals are good heat conductors?
Yes
No
9
Multiple Choice
Do you think insulators are good heat conductors?
Yes
No
10
Multiple Choice
What is the "keyword" for Radiation?
Wave
Heat
Density
Contact
11
Conduction
Solids are generally the best types of conductors:
–Heat passes through solids by conduction
–Metals are good heat energy conductors
•Insulators are bad heat energy conductors
•Liquids and gases are insulators
12
Particle theory
Conduction
13
Open Ended
How could you explain conduction by using the particle theory?
14
Multiple Choice
Why is a saucepan made of metal?
Partciles are fixed and vibrate with heat
Particles of metals are able to vibrate more than other materials
Metals are insulators
Metals are hard
15
Multiple Choice
Why does a wool jumper keep you warm ?
Because wool is warm
Because wool is a conductor
Because wool is an insulator
Because wool is a solid
16
Multiple Choice
Why does a tiles floor feel colder than a carpet floor on your feet ?
Because the carpet is warmer
Because the tiles floor is colder
Because the tiles floor is a better heat conductor
Because the carpet floor is a better heat conductor
17
Complete the questions on conduction
Read the short description
18
Convection (liquids and gases)
There is a "contact" between particles. The particles that are heated up become less dense because they are far apart, therefore they start raising.
19
Multiple Choice
Why doesn't a solid conduct heat by convection?
Because particles cannot move
Because particles cannot change density
Because particles are solid
Because particles are rigid
20
Convection (liquids and gases)
Energy transfer
part 1 - Conduction and Convection
Learning objectives:
1) Recall the differences in the states of matter (particle theory)
2)Learn the process of conduction in solids using the particle model
3)Learn applications of conduction in terms of thermal energy transfer from high temperature to lower temperature
4)Learn how convection occurs
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