1. Electricity
Current

2. Starter Using only… one wire, one battery & one bulb
To be able to draw and interpret circuit diagrams.
To know what is meant by current, charge and potential difference.
To be able to calculate charge flow.
Keywords: Current, potential difference, circuit, charge, amperes, coulombs
Starter
Using only…
one wire,
one battery
& one bulb
try and light the bulb.
You can not cut the wire.

3. To be able to draw and interpret circuit diagrams.
To know what is meant by current, charge and potential difference.
To be able to calculate charge flow.
Keywords: Current, potential difference, circuit, charge, amperes, coulombs
Starter
Remember: For electrical charge to flow through a closed circuit the circuit must include a source of potential difference.

4. To be able to draw and interpret circuit diagrams.
To know what is meant by current, charge and potential difference.
To be able to calculate charge flow.
Keywords: Current, potential difference, circuit, charge, amperes, coulombs
What is electricity?
Current: The flow of electrical charge (electrons).

5. Electrical Charge The is the rate of flow of electrical charge.
To be able to draw and interpret circuit diagrams.
To know what is meant by current, charge and potential difference.
To be able to calculate charge flow.
Keywords: Current, potential difference, circuit, charge, amperes, coulombs
Electrical Charge
The is the rate of flow of electrical charge.
This is calculated using the equation:
Charge flow = Current x Time
Q = I x t

6. Charge flow = Current x Time Q = I x t
To be able to draw and interpret circuit diagrams.
To know what is meant by current, charge and potential difference.
To be able to calculate charge flow.
Keywords: Current, potential difference, circuit, charge, amperes, coulombs
Charge flow = Current x Time
Q = I x t
Q - Charge is measured in Coulombs, C
I - Current is measured in Amperes, A
t - Time is measured in seconds, s

7. Charge flow = Current x Time Q = I x t
To be able to draw and interpret circuit diagrams.
To know what is meant by current, charge and potential difference.
To be able to calculate charge flow.
Keywords: Current, potential difference, circuit, charge, amperes, coulombs
Charge flow = Current x Time
Q = I x t
If 4A flows for 60 seconds, what is the charge flow?

8. Charge flow = Current x Time Q = I x t
To be able to draw and interpret circuit diagrams.
To know what is meant by current, charge and potential difference.
To be able to calculate charge flow.
Keywords: Current, potential difference, circuit, charge, amperes, coulombs
Charge flow = Current x Time
Q = I x t
If 4A flows for 60 seconds, what is the charge flow?
4 x 60 = 240C

9. Now you do some, (give answers to 1 decimal place)…
To be able to draw and interpret circuit diagrams.
To know what is meant by current, charge and potential difference.
To be able to calculate charge flow.
Keywords: Current, potential difference, circuit, charge, amperes, coulombs
Now you do some, (give answers to 1 decimal place)… 1
Q= 6
I= 5
t= ? 2
Q= 412
I= 12
t= ? 3
Q= 12
I= ?
t= 20 4
Q= ?
I= 150
t= 20 5
Q= 2
I= ?
t= 20 6
Q= ?
I= 13
t= 20 7
Q= ?
I= 8
t= 18
= 1.2s
= 34.3s
= 0.6A
= 3000C
= 0.1A
= 260C
= 144C

10. Past Paper Question…