Unit 4 F Circuits and conductors T Unit

Unit 4 F: Circuits and conductors T

Unit 4 F: 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 4 F: Vocabulary V

Unit 4 F: Simple Circuits Which of the circuits will work and which ones will not? Why will they not work? Unit 4 F: Simple circuits: L. O. 1, 2: N. C. 4. 1 a A

Unit 4 F: Safe Experiments: L. O. 3: N. C. A

Unit 4 F: 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 4 F: Conductors and Insulators: L. O. 4, 5, 6: N. C. 3. 1 c A

Unit 4 F: Uses of metals and plastics in electrical circuits: L. O. 7: N. C. 3. 1 c D

Unit 4 F : Switches What does the switch actually do? Unit 4 F: Switches: L. O. 8: N. C. D

Unit 4 F: Switches: L. O. 8: N. C. D

Unit 4 F: Varying components Varying Components Unit 4 F: Varying components: L. O. 9, 10: N. C. 4. 1 b A

Unit 4 F: 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 4 F: Changing circuits: L. O. 11, 12, 13, 14: N. C. 4. 1 a ?

Unit 4 F: Summary Concept Map mp e or M Buzzer louder Motor slower en ts ies Ba its er tt Les s Bulb dimmer on cu Motor faster Co Cir Bulb brighter Need a power source Switch can break a circuit Needs to be complete Circuits and Buzzer quieter Conductors Allow electricity Do not allow electricity through Some better than others s tor c u d Con Cables Wires Insu lator s Non-metal Metals are good Unit 4 F: Summary S