3-1 Heat and temperature (3.1)

Heating things up (3.1)
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NatuurkundeMiddelbare schoolhavo, vwoLeerjaar 2

This lesson contains 20 slides, with interactive quizzes and text slides.

time-iconLesson duration is: 50 min

Items in this lesson

Heating things up (3.1)

Slide 1 - Slide

Discovering
(p 98)


make questions 1 up to 6
The big idea here is: how can you conduct a reliable experiment

You have 7 minutes

Slide 2 - Slide

Slide 3 - Slide

Slide 4 - Slide

Slide 5 - Slide

LESSON GOALS

- How does insulation work
- How do we heat up a house and a body
- How can we use geothermal energy

Slide 6 - Slide

How do you keep warm?
Insulation
- People use a coat.
- Animals use their fur, 
   feathers or a layer of fat.
- We colse the door of a
   heated room.

Slide 7 - Slide

Whales
- Layer of fat/ 'whale blubber'
- Tongue and fins are thinner,
   because there is less fat.
- Blood is cooled down
   when it goes to the tongue.
- The heat is passed to the cold blood returning back to the 
   body

Slide 8 - Slide

Heating up a house
  • Central heating can use natural gas or electricity.
  • Sun heats up a house.
  • A fireplace does the same.

Slide 9 - Slide

Slide 10 - Slide

Body
Food is the most important source of energy.

When you loose heat your body needs extra energy to stay at the right temperature.

Slide 11 - Slide

Geothermal energy

The temperature of the earth centre is about 5 500 C
The outer layers of the earth act as insulation.
On average the temperature increases by 3 C for every 100 m. 
Iceland - uses geothermal energy as an energysource.

Slide 12 - Slide

Which is NOT an energy source?
A
Food
B
Alcohol
C
Central heating system
D
Petrol

Slide 13 - Quiz

In a cold environment you use more food than in a warm environment.
A
True
B
False

Slide 14 - Quiz

Fuels are energy sources.
A
True
B
False

Slide 15 - Quiz

Double glazing lets more heat through than single glazing.
A
True
B
False

Slide 16 - Quiz

Heat is always needed to make electricity.
A
True
B
False

Slide 17 - Quiz

Questions
2-7

Rules: No discussion

When you are done- Look for more information online about the role of geothermal energy

Slide 18 - Slide

Conclusion
  • Insulation prevents heat loss
  • Energy sources provide energy
  • Energy sources are: the Sun, fuels such as natural gas, wood and petrol, and also food

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timer
0:02

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