Current Affairs
What does a FIRE, a LIGHTBULB and SOUND have in common?
They are all forms of ENERGY!!!!
Name ONE part of a CIRCUIT.
Potential Answers: Motor, Wire, Cell, Battery, Switch, Bulb, Buzzer
What is a BREAK in a circuit?
When the switch is off, there is a break because the circuit is not connected!
Name ONE conductor.
What is ENERGY TRANSFER?
Moving electrical energy from one place to another.
What is ELECTRICITY?
A form of energy resulting from the movement of charged particles.
What are TWO types of POWER SOURCES?
Batteries and Cells!
What does TROUBLESHOOTING mean?
To find and fix a problem!
Name TWO insulators
Potential Answers: Rubber, Oil, Glass, Diamond, Dry Wood
What is ENERGY TRANSFORMATION?
Changing electrical energy into another type of energy.
What is an ELECTRON?
A tiny particle that carries electrical energy.
What items carry the LOAD?
A device that transforms energy for a purpose. For example, a lightbulb or a fan!
TRUE OR FALSE:
Electricity being turned into light in a light bulb is an example of energy transfer.
FALSE
Why do we wrap wires in plastic?
Plastic is used to cover wires because it is a conductor.
What is CHEMICAL ENERGY?
Energy stored inside substances that can be released to do work.
What is ELECTRICAL ENERGY?
The energy produced from the movement of tiny particles called electrons.
Draw the symbol for a SWITCH (ON AND OFF).
Your teacher will draw this one!
TRUE OR FALSE:
Electricity can still flow even if there is a small break in the circuit.
FALSE!
Why is WET WOOD NOT an insulator?
Name THREE TYPES of ENERGY.
Potential Answers:
chemical energy
electrical energy
light energy
heat energy
sound energy
kinetic (movement) energy
What is a CURRENT?
The flow of electricity.
DRAW A CIRCUIT!!!
Your teacher will draw this one!
WHY does a CLOSED CIRCUIT turn a lightbulb on?
A closed circuit means there is a complete path for energy to travel. This means it can travel to and from the lightbulb!
TRUE OR FALSE:
All metals are good electrical conductors!
False! For example, Lead and Stainless Steel are poor conductors.
EXPLAIN how energy TRANSFERS and TRANSFORMS in a CLOSED CIRCUIT.
The battery transforms chemical energy into electrical energy.
The electrical energy is transferred along the wire to the lightbulb.
The lightbulb transforms electrical energy into light energy.
Electrical energy travels from the lightbulb along the wire back to the battery.