1. Static Charge to Electric Current
16 November 2018
Static Charge to Electric Current
Objectives
Know what electric current is and how it can flow through some substances.
HSW: AF2 – Understanding the applications and implications of science
Used before in: lesson 1 – static electricity
Will use again in: lesson 3 - PD
PLTS: Team workers – Work collaboratively with others.
Discuss with the person next to you who Benjamin Franklin was and what he did.
Keywords
Static, Current, Amp, Coulomb, Second, atom, nucleus, electron, proton, neutron, insulator, conductor, ion, negative, positive, earthed.

2. OUTCOMES
All students should be able to know the units for current, charge and time and know how to discharge a charged object.
Most students should be able to define what electric current is use the equation: current = charge / time
Some students should be able to remember and rearrange the equation: current = charge / time.

3. Van de Graaff
Your teacher will demonstrate the Van de Graaff generator to you again. In each case below describe how current is flowing.
Spark in air
Spooning charge
Bouncing Balls
Fluorescent bulb
Charge flowing through students.

4. Electric Current What does it take for electric current to flow?
What is electric current?
Class definition:
What is the equation?

5. Demonstrate your understanding
Class questions link
Your teacher will give out some questions.
They have been rated by difficulty. Challenge yourself and try the hardest questions you think you can do in the time given.
Once you have finished – try questions 8a-8d.

6.    Self assess EASIEST MEDIUM HARDEST 4a. 180C 4b. 7200C 4c. 2.5A
1d. 100C
1e. 240C
2a. 3A
2b. 2A
2c. 6A
2d. 0.25A
2e. 12A
3a. 3s
3b. 5s
3c. 15s
3d. 16s
3e s
MEDIUM
4a. 180C
4b C
4c. 2.5A
4d. 1.2A
4e A
5a. 1A
5b A
5c. 2A
5d. 50mC
5e. 10A
HARDEST
6a. 4s
6b. 200s
6c. 40s
6d s
6e. 5s
7a. 42C
7b. 2.5A
7c. 3s
7d C
7e A
7f s   
8a. How does electric charge flow in a wire?
8b. How does electric charge flow in a liquid?
8c. Draw an electric circuit and describe how the charge would flow.
8d. Draw a diagram of a line of students getting an electric shock by a Van de Graaff generator and describe how the charge flows.

7. Think Pair Share Electric Current
8a. How does electric charge flow in a wire?
8b. How does electric charge flow in a liquid?
8c. Draw an electric circuit and describe how the charge would flow.
8d. Draw a diagram of a line of students getting an electric shock by a Van de Graaff generator and describe how the charge flows.
Some sentences to help:
Electrical charges can move easily through some substances, in …… it is by the movement of ……….. In a liquid it is by the movement of ………..
Charge flows in a ………… because it is …………. from one end and ………… to the other end.
This happens in a complete…………. A charged body can be discharged by connecting it to …………. with a conductor. Charge then ………….. through the conductor.
circuit attracted wires flows ions conductor electrons repelled earth

8. 8a. How does electric charge flow in a wire?
8b. How does electric charge flow in a liquid?
8c. Draw an electric circuit and describe how the charge would flow.
8d. Draw a diagram of a line of students getting an electric shock by a Van de Graaff generator and describe how the charge flows.

9. Brainiac Electric Fence
Have a look at the video and answer these questions:
Do they always get an electric shock? When do they?
What is electric current?
Can you remember the equation for electric current and recall the units?