10 challenges โ circuits to read, components to sort, switches to analyse,
and a live interactive circuit to complete. No searching. Just thinking.
Choose Your Name
Question 1 ยท Circuit Reading
Read the Circuit
The diagram below shows an electric circuit. Four components are marked with coloured spots. Tap each spot to identify the component.
A
B
C
D
SPOT A
โLamp
โBattery (dry cell)
โSwitch
โConnecting wire
SPOT B
โLamp
โBattery (dry cell)
โSwitch
โConnecting wire
SPOT C
โLamp
โBattery (dry cell)
โSwitch
โConnecting wire
SPOT D
โLamp
โBattery (dry cell)
โSwitch
โConnecting wire
Question 2 ยท Symbol Match
Match the Symbol
Four circuit symbols are drawn on the canvas. Study each symbol carefully โ you learned these in Lab 1! Then drag the correct component name onto the matching box below. On mobile: tap a chip to select it, then tap the box beneath the correct symbol.
๐ Dry Cell
๐ก Lamp
๐ Switch
ใฐ Wire
Symbol 1
Symbol 2
Symbol 3
Symbol 4
Question 3 ยท Sort It Out
Conductor or Insulator?
Sort each material into the correct category. Tap a chip to select it, then tap the target box to place it. Placed chips can be tapped to return to the bank.
๐ฉ Copper wire
๐ค Rubber band
๐ช Iron nail
๐ชต Dry wood
โ Graphite pencil
๐ช Glass
๐ง Steel bolt
๐งด Plastic bottle
โก Conductor โ tap to place
๐ซ Insulator โ tap to place
Question 4 ยท Switch Logic
Control the Circuit
Tap the switch in the circuit below to open and close it. Watch what happens to the lamp. Then answer the question.
Switch is OPEN โ tap to close
Q4
You just observed that when the switch is open, the lamp:
AGlows dimly โ some current still passes through
BDoes not light โ the circuit is broken and zero current flows
CStays bright โ switches only reduce voltage
DExplodes โ too much voltage builds up
Question 5 ยท Open or Closed?
Which circuits work?
Four circuits are shown. Tap each one to classify it as open (lamp off) or closed (lamp on). The switch state is your clue.
Questions 6 โ 8 ยท Scenarios
What Happens Next?
Three real-world scenarios. Each one requires you to apply what you learned in the labs โ not just recall facts.
Question 6 ยท Cells & Brightness
A lamp is connected to one dry cell and glows normally. A student then connects a second dry cell in the same circuit. What is the most likely result?
AThe lamp goes out โ two cells cancel each other
BThe lamp glows brighter โ more cells provide more voltage and more current
CNothing changes โ the number of cells does not affect brightness
DThe lamp glows dimmer โ more cells slow the current down
Question 7 ยท Conductor or Insulator?
In Lab 2, you tested materials in a circuit gap. A student places a pencil (graphite) across the gap. The lamp lights up. A second student places a rubber eraser across the same gap. The lamp stays off. The correct conclusion is:
AGraphite is an insulator; rubber is a conductor
BGraphite is a conductor; rubber is an insulator
CBoth are conductors โ the second lamp was broken
DBoth are insulators โ the first lamp lit by coincidence
Question 8 ยท Generator or Receiver?
A circuit contains a battery, a motor, and a lamp. Which statement correctly classifies the components?
DAll three are receivers โ they all use electricity
Question 9 ยท Circuit Builder
Complete the Circuit
The circuit below is missing one component. Tap the correct missing component from the options below to add it. The circuit will animate when you get it right.
The circuit has a battery and two connecting wires. The lamp symbol is drawn but not connected to the top wire. Which component is also missing to make this a complete, working circuit?
Question 10 ยท Written Response
Explain in Your Own Words
This is your chance to show deep understanding. Write clearly โ your teacher reads every answer.
Q10 โ Written (no multiple choice)
A student builds a circuit with a battery, a lamp, and connecting wires. The lamp lights up.
The student then removes the lamp from the circuit but keeps the wires connected where the lamp was.
Explain in 2โ3 sentences: What happens to the circuit and why? Use the words: current, path, complete circuit.
Your written answer is saved and reviewed by Ahmad.
E5 ยท Submit
Submit Your Pre-Test
Check that your name is selected, then submit. Your score and all answers go directly to Ahmad's grade sheet.
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Pre-Test Score
Your written answer (Q10) and circuit interactions are reviewed by Ahmad in class.