Students identify a true statement about parallel circuits, diagnose why a bulb in a complete-looking circuit does not light, and choose the best wire material. Part B has five fill-in-the-blank problems about electricity following the path of least resistance, short circuits, and what a missing series bulb creates.
Diagnosing circuit failures requires students to apply all circuit concepts systematically rather than recall individual facts.
Style:
Electricity and Circuits
Part A: Multiple Choice
Circle the best answer for each question.
1. Which statement about parallel circuits is true?
A) All devices share one single path
B) If one device breaks, all others stop working
C) Each device has its own path for current
D) Adding more devices makes each one brighter
2. A student builds a circuit with a battery, wires, and a bulb, but the bulb does not light. What is the most likely problem?
A) The wires are too long
B) There is a gap in the circuit
C) The battery is too powerful
D) The bulb is too bright
3. Which material would make the best wire for a circuit?
A) rubber
B) glass
C) copper
D) wood
4. Why do the lights in your house stay on when one light bulb burns out?
A) The house uses very strong batteries
B) The lights are wired in a series circuit
C) The lights are wired in a parallel circuit
D) The burned-out bulb still conducts electricity
Part B: Fill in the Blank
Write the correct answer on each line.
1. Electricity always follows the path of least resistance.
2. A short circuit happens when electricity takes an unintended path and can cause overheating.
3. In a series circuit with three bulbs, removing one bulb creates an open circuit.
4. Metals are good conductors because their outer electrons move freely.
5. The brightness of a bulb in a circuit depends on the amount of current flowing through it.
Electricity and Circuits
★ Part A: Multiple Choice
Circle the best answer for each question.
1. Which statement about parallel circuits is true?
A) All devices share one single path
B) If one device breaks, all others stop working
C) Each device has its own path for current
D) Adding more devices makes each one brighter
2. A student builds a circuit with a battery, wires, and a bulb, but the bulb does not light. What is the most likely problem?
A) The wires are too long
B) There is a gap in the circuit
C) The battery is too powerful
D) The bulb is too bright
3. Which material would make the best wire for a circuit?
A) rubber
B) glass
C) copper
D) wood
4. Why do the lights in your house stay on when one light bulb burns out?
A) The house uses very strong batteries
B) The lights are wired in a series circuit
C) The lights are wired in a parallel circuit
D) The burned-out bulb still conducts electricity
★ Part B: Fill in the Blank
Write the correct answer on each line.
1) Electricity always follows the path of least resistance.
2) A short circuit happens when electricity takes an unintended path and can cause overheating.
3) In a series circuit with three bulbs, removing one bulb creates an open circuit.
4) Metals are good conductors because their outer electrons move freely.
5) The brightness of a bulb in a circuit depends on the amount of current flowing through it.
Ready to Practice?
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9 Questions
12-18 minutes
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