P3–1B–008—18-02-2020

This lesson
  • Look back at previous lesson – energy transfer
  • Covering the homework
  • Energy transfer vs energy transformation
  • Conservation of energy
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This lesson
  • Look back at previous lesson – energy transfer
  • Covering the homework
  • Energy transfer vs energy transformation
  • Conservation of energy

Slide 1 - Diapositive

Goals
  • Recognise energy transfer
  • Give examples of energy transfer
  • The difference between energy transfer and transforamtion
  • Create energy transfer diagrams

Slide 2 - Diapositive

Energy transfer
What is energy transfer?

Slide 3 - Diapositive

Chemical energy
Kinetic (movement)
energy
Elastic energy
Kinetic (movement)
energy
energy diagram
blowing up a balloon and letting it go

Slide 4 - Diapositive

Slide 5 - Diapositive

Slide 6 - Diapositive

Exercise powerplant
  • Or continue checking the homework 
  • done? start with §2.5

Slide 7 - Diapositive

Energy transfer  vs  Energy transformation

  • Movement of energy from one place to another.
  • When energy changes from one type to another.

Slide 8 - Diapositive

Chemical energy
Electric energy
light energy
energy diagram
construction lamp
Thermal energy
  • Energy tranfser?
  • Energy transformation?

Slide 9 - Diapositive

Chemical energy
Kinetic (movement)
energy
Elastic energy
Kinetic (movement)
energy
energy diagram
blowing up a balloon and letting it go

  • Energy tranfser? 
  • Energy transformation?

Slide 10 - Diapositive

Goals
  • Recognise energy transfer
  • Give examples of energy transfer
  • The difference between energy transfer and transforamtion
  • Create energy transfer diagrams

Slide 11 - Diapositive

The law of conservation of energy
The total energy in a system stays the same

  • A Phet simulation
  • A lamp
  • Usefull and wasted energy

Slide 12 - Diapositive

What did we cover this lesson?

Slide 13 - Diapositive

Conservation of energy
Energy transfer
Energy
What is energy?
The role of the sun
Energy types
Gravitational potential energy
 &
kinetic energy
Elastic potential energy

Slide 14 - Diapositive

For next lesson
  • Homework: exercises of § 2.5
  • Have a good carnaval break!

Slide 15 - Diapositive