WorksheetsParallel Circuits
Total questions: 9
Worksheet time: 5mins
How are components connected in a parallel circuit?
All the components are connected in a single loop
Parallel circuits do not contain components
The components are not connected at all
Each component is connected on a different branch
What happens when the switch is closed?
Only the bottom lamp turns on
Both lamps turn on at the same time
Only the top lamp turns on
The top lamp turns on and then the bottom lamp turns on
Two identical lamps are connected in parallel. How bright are the lamps?
The top lamp is the brightest
The lamps are the same brightness
Both lamps are off
The bottom lamp is the brightest
What happens to the bottom lamp if the top lamp breaks?
The bottom lamp gets dimmer
The bottom lamp gets brighter
The bottom lamp turns off
The bottom lamp stays the same brightness
Which statement correctly describes the current in a parallel circuit?
The total current into a junction equals the total current out of a junction
The total current into a junction is less than the total current out of a junction
The total current into a junction is more than the total current out of a junction
The current is the same in all parts of the circuit
Which of these circuits are parallel circuits?
X and Y only
X and Z only
Y and Z only
all of them
Which switches must be pressed to make bulb X
come on?
1 and 2 only
1 and 3 only
2 and 3 only
all three of them
Parallel circuits are used for house lights:
so they can all be switched on and off together.
so you know when one breaks, because all the
others go off.
so they use a bigger current.
so they can all be switched on and off
separately.
Which of these statements is not true?
The currents at Q and R add up to give the
current at S.
The current is the same at P and S.
The current is the same at Q and R.
The current is the same at P and Q.
