Unit 4F: Circuits and conductors
Unit 4F: Simple circuits: L.O. 1, 2: N.C. 4.1a
Unit 4F: Circuits and conductors
Circuits and conductors
Unit 4F: Circuits and conductors
Unit 4F: Vocabulary
Useful Words
Battery
An electrical energy source
Bulb
A light source powered by electricity
Buzzer
A sound source powered by electricity
Motor
A device that uses electricity to produce movement
Break
In an electric circuit a break will stop the circuit working
Electrical insulator
A material that will not allow electricity to pass through
Electrical Conductor A material that will allow electricity to pass through
Metal
A good conductor of electricity
Plastic
An electrical insulator
Unit 4F: Vocabulary
Unit 4F: Simple Circuits
Simple Circuits
Which of the circuits will work and which ones will not?
Why will they not work?
Unit 4F: Simple circuits: L.O. 1, 2: N.C. 4.1a
Unit 4F: Safe Experiments
Safe Experiments
Unit 4F: Safe Experiments: L.O. 3: N.C.
Unit 4F: Conductors and Insulators
Conductors and Insulators
What materials are good conductors of electricity?
How can we test various materials to see if they are conductors?
Material
Conductor
Insulator
What do the results show?
Are there any exceptions to the general rule?
Unit 4F: Conductors and Insulators: L.O. 4, 5, 6: N.C. 3.1c
Unit 4F: Uses of metals and plastics in electrical circuits
Uses of metals and plastics in electrical circuits
Unit 4F: Uses of metals and plastics in electrical circuits: L.O. 7: N.C. 3.1c
Unit 4F : Switches
Switches
What does the switch actually do?
Unit 4F: Switches: L.O. 8: N.C.
Unit 4F: Switches
Unit 4F: Switches: L.O. 8: N.C.
Unit 4F: Varying components
Varying Components
Unit 4F: Varying components: L.O. 9, 10: N.C. 4.1b
Unit 4F: Changing circuits
Changing circuits
How can you change the brightness of the bulb?
List all the things you could change to do this.
What will happen if you add more bulbs to the circuit?
What would a switch do to the circuit?
If the bulb was exchanged for a motor, how could the speed of the motor be changed?
How could the loudness of a buzzer be changed?
Unit 4F: Changing circuits: L.O. 11, 12, 13, 14: N.C. 4.1a
Unit 4F: Summary
Concept Map
Bulb brighter
Need a power
source
Switch can break
a circuit
Motor faster
Buzzer louder
Bulb dimmer
Needs to be
complete
Motor slower
Circuits and
Buzzer quieter
Conductors
Allow electricity
Do not allow
electricity through
through
Some better than others
Cables
Wires
Non-metal
Metals are
good
Unit 4F: Summary