P3–1B-009—02-03-2020
This lesson
- The chemistry (P2) test
- Find the answers for the learning goals
- Check the learning goals
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Slide 1: Slide
Natuurkunde / ScheikundeMiddelbare schoolvwoLeerjaar 1
This lesson contains 12 slides, with text slides.
Items in this lesson
This lesson
- The chemistry (P2) test
- Find the answers for the learning goals
- Check the learning goals
Slide 1 - Slide
Goals
1. State the law of conservation of energy
2. What is always true about the total amount of energy generated compared to the amount of energy used?
3. What does it mean to say that energy is useful?
What does it mean to say that energy is wasted?
4. What two factors in an energy transfer are compared together to detimerine the efficiency? And how?
Slide 2 - Slide
The plan for this lesson
Slide 3 - Slide
Find the answers
1. State the law of conservation of energy
2. What is always true about the total amount of energy
generated compared to the amount of energy used?
3. What does it mean to say that energy is useful?
What does it mean to say that energy is wasted?
4. What two factors in an energy transfer are compared
to detimerine the efficiency? And how?
- You maywork together
- Use §2.5
- Done? start with the exercises of 2.5
Slide 4 - Slide
Goals
1. State the law of conservation of energy
- Energy cannot be created or destroyed. It can be transferred.
Slide 5 - Slide
Goals
2. What is always true about the total amount of energy generated compared to the amount of energy used?
- The total amount of energy generated in a process is always the same as what is required for it.
Slide 6 - Slide
Goals
3. What does it mean to say that energy is useful?
What does it mean to say that energy is wasted?
- Useful energy: The energy generated in an energy transfer which is purposufuly used
- Wasted energy: The energy generated in an energy which is not purposefuly used
Slide 7 - Slide
Goals
4. What two factors in an energy transfer are compared together to detimerine the efficiency? And how?
- Useful energy divided by total energy
Slide 8 - Slide
Goals
1. State the law of conservation of energy
2. What is always true about the total amount of energy generated compared to the amount of energy used?
3. What does it mean to say that energy is useful?
What does it mean to say that energy is wasted?
4. What two factors in an energy transfer are compared together to detimerine the efficiency? And how?
Slide 9 - Slide
Slide 10 - Slide
Your thoughts
on working mostly independent
this lesson?
Slide 11 - Slide
For next lesson
Homework: exercises §2.5
Next lesson
- Discussing the homework
- covering §2.10
