Chapter 9 : Electricity Flashcards
Flow of electricity. Electrical circuits. Measuring the flow of current. Conductors and insulators. Adding or removing components.
What is electricity?
The flow of electrons.
What is a series circuit?
A series circuit is a circuit with only one conducting path.
What is a parallel circuit?
A parallel circuit is a circuit with more than one conducting path.
What is the difference between a series and a parallel circuit?
A series circuit only has one path for electricity to flow whereas a parallel circuit has more than one path for electricity to flow.
What happens to the bulb if you add an extra cell to a circuit?
The bulb glows brighter
What happens to the buzzer if you add an extra cell?
It buzzes louder
What is an ammeter?
An ammeter is used to measure an electric current.
What happens if you add more bulbs to a circuit?
The brightness of each bulb decreases.
Will the bulb become brighter if you add another bulb? Yes or no? Explain your answer.
No. This is because when another bulb is added, the electrons have to be shared between them evenly,
If the switch is open, will the bulb light up? Explain your answer.
It will not light up because the flow of electricity is broken. When there is no electricity passing through the circuit, the bulb will not glow.
What happens to the bulb if the circuit is broken?
The bulb will not light up.
What is a conductor?
A conductor is a material that allows electrical current to flow.
What is an insulator?
An insulator is a material that does not allow electrical current to flow.
