1) How many of the bulbs will remain lit if the wire is cut at the point shown by the arrow? a) 0 b) 1 c) 2 d) 3 2) Which of these will cause the light bulb to light up? a) Straightening the wire b) Add a switch c) Turn on the battery 3) When the lights are on, electricity travels in- a) a complete circuit b) a sound wave c) a light ray 4) The lightbulb does not glow. Which statement explains this observation? a) The battery is not charged. b) The lightbulb is not part of a complete circuit. c) The circuit does not have a switch. 5) All bulbs are lighted. Which change would cause all the bulbs to go out? a) Removing just Wire 1 b) Removing all Wires c) Removing Wires 2 and 5

Circuits and switches

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