This lesson contains 20 slides, with text slides and 3 videos.
Lesson duration is: 45 min
Items in this lesson
Elecricity
Slide 1 - Slide
Slide 2 - Video
Static electricity
Slide 3 - Slide
This lesson
Quick recap – Static electricity
Overview period 4
The Homework assignment
Electric circuits
Slide 4 - Slide
Learning goals
You can explain in your own words what is meant by static electricity.
You can explain in simple terms what electricity is.
You can explain how an electric circuit works.
You can draw a circuit diagram in the correct way
Slide 5 - Slide
The learning goals P4
Slide 6 - Slide
Learning goals P4
Explain what electricity is in simple terms.
Name the two types of charges and how they interact with each other.
Explain what is meant by an electric circuit, and be able to draw circuit diagrams.
Explain what is meant by current, voltage and resistance in your own words.
Describe the relationship between current, voltage and resistance.
Explain what is meant by power and be able to do calculations on power.
Slide 7 - Slide
The paragraphs we will cover in period 4
§9.1 electrostatic phenomena
§9.4 Electric circuits
§9.5 Current
§9.6 + §9.7 + §9.8 Electric circuits
§9.9 Voltage
Extra material about Resistance
Slide 8 - Slide
What is expected of you?
Study the paragraphs.
Make several worksheets
Do one or two practicals.
Learn two new formula's.
Do the homework.
Ask questions if you don't understand something.
Slide 9 - Slide
The homework assignment
Slide 10 - Slide
Slide 11 - Video
Ancient Greeks observed: A piece of amber, when rubbed with fur can pick up pieces of straw.
The word for amber was 'Electron'. This effect is where the word electricity comes from.
In 1600 William Gilbert found out other objects can do the same. He called these electrics, they poses the quality of electricity. Sometimes electrics repel, sometimes they attract.
Benjamin Franklin likened the effect of electrifying and de-electrifying to charging and discharging a gun.
When many discharging devices are combined you get a larger shock. This was the start of the invention of the battery.
Later the discovery of electrons explain what was really going on.
Objects that are positively charged lack electrons.
Objects that are negatively charged gained electrons.
Slide 12 - Slide
Electricity is:
the flow of electrons from a negatively charged object to a positively charged object.