Electricity Year 8 Autumn 2 Science Exam Socrative Flashcards
What happens when the switch S is closed in Max’s first circuit?
All the bulbs come on
This indicates that the circuit is complete and functioning properly.
What occurs when one of the bulbs in Max’s first circuit breaks?
All the bulbs go off
This suggests that the bulbs are connected in series.
If all the bulbs in Max’s first circuit go off, which bulb must have broken?
Any of the bulbs could have broken
In a series circuit, the failure of any single bulb causes the entire circuit to stop functioning.
In Max’s second circuit, what was the current reading on ammeter A1?
0.8 amps
This reading is crucial for determining the current in the other ammeters.
What are the possible current readings on ammeters A2 and A3 if A1 is 0.8 amps?
A2 = 0.4, A3 = 0.4
This indicates a parallel circuit configuration where the total current is divided among the branches.
Fill in the blank: In a series circuit, the failure of _______ causes all components to stop working.
any single bulb
True or False: In a parallel circuit, each component operates independently.
True
This allows other components to remain functional even if one fails.
What happens when Steven connects point A to point B with a piece of copper wire while the switch is open?
Bulb Y lights up
Bulb X does not light up when point A is connected to point B.
What happens when Steven connects point C with a piece of copper wire while the switch is still open?
Bulb X lights up
Bulb Y does not light up when point C is connected.
What occurs when Steven closes the switch after connecting point B to point C with the copper wire?
Both bulbs light up, but not very brightly
The circuit configuration allows both bulbs to receive power.
What happens to bulb X when Steven connects point B to point C and then closes the switch?
It goes out
The connection changes the circuit dynamics, causing bulb X to lose brightness.
If the switch is open, which bulbs light up when connecting point A to point B?
Bulb Y
Bulb X remains off in this configuration.
Which bulbs light up when point C is connected while the switch is open?
Bulb X
Bulb Y does not light up in this scenario.
When the switch is closed and both bulbs are lit, how bright are they?
Not very brightly
The bulbs receive power but are not operating at full brightness.
Fill in the blank: When the copper wire connects point A to point B, _______ lights up.
Bulb Y
Fill in the blank: When point C is connected with the copper wire while the switch is open, _______ lights up.
Bulb X
True or False: Bulb X lights up when point C is connected while the switch is open.
True
True or False: Bulb Y lights up when point A is connected to point B with the switch open.
True
What is the outcome for bulb X when the switch is closed and it is connected to point B and C?
It goes out
What happens to bulb Y when Steven connects point B to point C?
A It gets brighter
This occurs because the additional connection allows more current to flow through bulb Y.
What happens to bulb X when Steven connects point A to point I after removing the copper wire?
A It gets brighter
The connection from point A to point I increases the voltage across bulb X.
What happens to bulb V when the circuit is modified?
A It gets brighter
The change in circuit configuration can increase the brightness of bulb V.
True or False: Both bulbs light up brightly when the copper wire is removed.
False
The bulbs light up but not very brightly when the copper wire is removed.
Fill in the blank: When the switch is closed, both bulbs light up, but not very _______.
brightly
This indicates that the circuit may not be receiving enough current.
