P4 - Electric Circuits

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P4

P4 - Electric Circuits

RAG Foundation

RAG Higher

RAG Triple

KS4 -P4.1 - (T) - Electrical charges and fields

My Movie.mp4

Static electricity


TraVOLTa.mp4

John Travolta


Practical

Demo :

  • Balloon to blow up to explain static electricity - show it sticking to the wall
  • Use the tesla coil to show a "field" lighing up neons.
  • Vandaar graaf
  • Bubbles
  • 2x Foil with leads (croc clips)

Practical:

11 x collection of cloth and plastic rulers

11 x coke cans for racing.


Risk

Risk:

  • Warn students of posibility of a small shock

KS4 -P4.2 - Current and charge

videoplayback.mp4

LIGHTENING strike


Charge Foundation

Charge Foundation answers

Charge Higher

Charge higher answers

KS4 -P4.3 Current - Theory

Practical

Demo :

  • Energy stick
  • Rope
  • Truck model

KS4 -P4.35 Current - Practical

Practical

Demo :

  • Energy stick

Practical:

11 x

2 x Bulbs

1 x Spider Power supply

1 x Ammeter

12 x leads

KS4 -P4.4 Voltage Theory

Practical

Demo :

  • string for rope model
  • 1 x Bulb
  • 3 x batteries
  • 6 x leads

KS4 -P4.4 Voltage Practical

Measuring PD

Sheet to take students though making circuits with cells in series and parallel.

Practical

Demo :

  • string for rope model

Practical:

11 x

1 x Bulbs

3 x cells

1 x Voltmeter

8 x leads

KS4 -P4.5 Resistance

Resistance Foundation

Resistance Answers

Resistance Higher

Resistance Answers

Practical

Demo :

  • 1x
  • Resistance wire (full length glowing across classroom)
  • 3 x
  • 2 x small diameter straw
  • 1 x large diameter straw


For practical :

11x

  • 1 x Variable resistors (large coiled ones)
  • 1 x spider packs
  • 1 x ammeter
  • 1 x voltmeter
  • Leads



Students use the straws to model resistors, also if they are in parallel it is easier to blow


Students will then take various readings of a variable resistor to calculate the resistance at that point. (skills necessary for required practicals)

KS4 -P4.6 Required practical 1

Supported rq pract

Full RQ pract

Practical

For practical :

11x

  • 1 x Banjo boards (lengths of wire)
  • 1 x variable resistor
  • 1 x voltmeter
  • 1 x ammeter
  • 2 x croc clips
  • 8 x leads

Students use measure the current and the voltage to calculate the resistance of the wire at various lengths.

KS4 -P4.6 Required practical 2

Foundation

Higher

Practical

For practical :

11x

  • 12 V, 24 W filament lamp (eg a ray box lamp)
  • 1x LED
  • Resistor (eg 100 Ω, 1 W)
  • variable resistor (eg 10 Ω, 5 A)
  • 1 x voltmeter
  • 1 x ammeter
  • 2 x croc clips
  • 8 x leads

Students use measure the current and the voltage to look at the characturistic of a component


For demo:

1x

  • milliammeter (for working with the diode)
  • voltmeter
  • diode and protective resistor (eg 10 Ω)
  • variable resistor (eg 10 Ω, 5 A)
  • connecting leads.

KS4 -P4.x Thermister

Practical

Practical Thermistors

I-V graph of a thermistor

for all :

  • 3x kettles for boiling water

11 x

  • 1 x thermistor
  • 1 x thermometer
  • 1 x beaker
  • 1 x voltmete
  • 1 x ammeter
  • 6 x leads

Students use the skills they have learned to show resistance changes with heat for a thermister.

Risk

Care with boiling water

P4.7 - Big Question

BQ Foundation

BQ Higher

BQ Triple

USB Rechargeable AA Battery Lithium.mp4
Tesla makes a PHONE CHARGER.mp4