Science year 2.1: energy sources

Welcome
Today we start with topic 2 about Energy

Home practicum (growing a plant from a bean), next week more information

In the lessons 1 day of theory, 1 day of practica or practicum assignment

Today's lesson in Lesson-up (interactive)
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Slide 1: Slide
ScienceMiddelbare schoolhavo, vwoLeerjaar 2

This lesson contains 21 slides, with interactive quizzes, text slides and 3 videos.

Items in this lesson

Welcome
Today we start with topic 2 about Energy

Home practicum (growing a plant from a bean), next week more information

In the lessons 1 day of theory, 1 day of practica or practicum assignment

Today's lesson in Lesson-up (interactive)

Slide 1 - Slide

This topic's finish
Test in test week 2 about entire topic 2

Practical test (from testweek 1)

Scientific report about growing a bean

Slide 2 - Slide

Learning goals
- Give examples of energy sources
- Identify different forms of energy
- Identify the type of energy conversion takes place
- Explain the difference between renewable an non-renewable
   energy and identify which one applies
- Explain the difference between non-sustainable and
   sustainable energy sources and identify which one applies

Slide 3 - Slide

Which types of energy do you know?

Slide 4 - Mind map

2.1 Energy sources

Slide 5 - Slide

Which description fits best to the energy forms:
  • Elektromagnetic (light,...)
  • Nuclear
  • Thermal
  • Kinetic (movement)
  • Sonic (sound)
  • Chemical
  • Electrical

Slide 6 - Slide

Kinetic energy
Thermal energy
Chemical energy
Electric energy
Nuclear energy
Sonic energy
Energy that results from movement of an object
Energy resulting from a temperature difference between two systems
Energy resulting from reactions between atoms and / or molecules
Energy resulting from the flow of electrons
Energy resulting from changes in the atomic nuclei or from nuclear reactions
Energy in the form of sound waves

Slide 7 - Drag question

1

Slide 8 - Video

Slide 9 - Video

01:23
Will the ball hit the man's face?
Yes
No

Slide 10 - Poll

Law of conservation of energy
Energy is not created or destroyed

Energy can be transformed from 
one form to another

Slide 11 - Slide

What do we mean when we say:
 energy is “lost” ?

Energy is never destroyed, but some energy conversion is not useful for us

Example: Your macbook heating up, instead of converting the electrical energy to only light and sound → we “lose” energy in the form of heat

Slide 12 - Slide

Slide 13 - Video

What type of energy conversion fits best at the shown power plant?
A
kinetic energy to electric energy to thermal energy
B
Chemical energy to electric energy
C
kinetic energy to nuclear energy to electric energy
D
Thermal energy to kinetic energy to electric energy

Slide 14 - Quiz

Energy conversion
at a fossil-fired power plant
Chemical energy ⇒ thermal energy(heat)
           by burning coal or gas
Thermal energy(heat) ⇒ kinetic energy
           Heating water produces steam, the steam is used to rotate the steam                 turbine
Kinetic energy ⇒ electrical energy
           This happens in the generator, similar 
           to what happens in a dynamo

Slide 15 - Slide

Chemical energy
Electrical energy
Kinetic Energy
Thermal Energy

Slide 16 - Drag question

Write down as many energy sources as you can.

Slide 17 - Mind map

Energy sources
Renewable: It does not run out, it renews itself

Non-renewable: It runs out, so we won’t be able to use it forever

Slide 18 - Slide

Renewable
Non-Renewable
Solar energy
Natural Gas
Nuclear energy
Coal
oil
Wind
Geothermal
Biomass

Slide 19 - Drag question

Sustainable
An energy source is that is both renewable and does not harm the environment is called sustainable.


Slide 20 - Slide

Homework
Do special assignment about endothermic and exothermic energy in classroom
before Thursday 1th Dec

Make: Questions 1 until 11
Pages 8 until 12 (before ThursdaY 1th of Dec)


Slide 21 - Slide