P3–1B–004—04-01-2020

• Natuurkunde / Scheikunde
• Middelbare school
• vwo
• Leerjaar 1

This lesson

• Looking back at previous lesson
• Answering the two questions
• A questionaire
• Working on §2.1 and 2.2

Goals

• Defining energy
• Giving examples of work
• Explaining where the energy for work comes from
• Explaining what happens to energy after work

Looking back at previous lesson

What is energy?

What is energy?

The ability to do work (in Joules)

The ability to do work (in Joules)

Energy source

Work

The ability to do work (in Joules)

Exercise:

In pairs of two

write down all the work...

• Your body does + it's energy source
• Your phone does + it's energy source
• That is being done in this classroom + the energy source

Energy source

Work

The ability to do work (in Joules)

• Energy cannot be created or destroyed

• Energy can change forms

Energy source

Work

The ability to do work (in Joules)

• Energy cannot be created or destroyed

• Energy can change forms

Energy source

Work

• Where does the sun get its energy from?

• Do all energy sources on earth lead back to the sun?

Answering the two questions

 a questionnaire

Working independently

For next lesson:

All excersises of §2.1 and §2.2

What did we cover this lesson?

Goals

• Defining energy
• Giving examples of work
• Explaining where the energy for work comes from
• Explaining what happens to energy after delivering work

Next lesson

• (if possible) discussing the test
• disscussing the exercises of §2.1 and §2.2