Making Circuits Y8

Making Circuits Y8

•Turn your microphone and your camera off.

•Move any distractions. You must not use your phone during the lesson.

•Do not write anything in the chat unless your are told to.

•Wait for the lesson to start.

•Be aware that the session is recorded.

•Have pen and equipment ready.

Depending on the quality of your internet connection, you may experience a ‘lag’ in the lesson.

Circuits

• Electricity is the flow of electric charges.

• Charge is a property of matter and can be positive or negative.

• Charges that move are most often electrons from an atom.

• A circuit is a closed loop of conducting material that lets the charges flow through it.

Multiple Select

Which circuits below would work to light the bulb?

Circuit Connections

• The wires in a circuit carry the electric current.

• The circuit has to be complete to allow electricity to travel.

• A circuit also needs something to provide a force to push the charge along the wires - this is what a battery does.

Circuit Symbols

• Circuit symbols are used in circuit diagrams to show how a circuit is connected together.

• Straight lines are used to show the wires.

Multiple Choice

What is the circuit symbol for a closed switch?

Multiple Choice

What is the circuit symbol for a bulb?

Multiple Choice

What is the circuit symbol for a voltmeter?

Multiple Choice

What is the circuit symbol for a bulb?

Multiple Choice

What is the circuit symbol for an open switch?

Multiple Choice

What is the circuit symbol for a battery?

Multiple Choice

What is the circuit symbol for a cell?

Multiple Choice

What is the circuit symbol for a resistor?

Drawing Circuits

• This circuit shows a battery, bulb and switch.

• To draw a circuit you start with the symbols and then draw straight lines to connect them.

Open Ended

Why do you have to put batteries in the right way round in a remote?

Connecting Batteries

• Batteries provide the force to push charge round the circuit.

• They push the charge from the negative end and it returns to the positive end.

Multiple Select

What mistakes are there with the circuit he has drawn?

• One of the batteries is the wrong way round

• The wires to the motor aren't drawn with a ruler

• One of the circuit symbols is wrong

• There are small gaps in the circuit

• The switch is in the wrong place