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 changes will cause the light bulb to light up? a) Straightening the wire b) Add a switch c) Turn one battery d) Make the length of wire the same on both sides 3) When the lights are on, electricity travels in- a) a complete circuit b) a sound wave c) a light ray d) an incomplete path 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. d) The bell uses most of the energy from the battery. 5) To recharge the battery without lighting the bulb, which switches should be closed? a) Switch S only b) Switches R and S only c) Switches R and T only d) Switches R, S, and T 6) All bulbs are lit. Which change would cause all the bulbs to go out? a) Removing Wire 1 b) Removing Wires 2 and 4 c) Removing Wires 2 and 5 d) Removing Wires 3 and 4 7) What will happen if Switch 3 is closed and the other switches are left open? a) Only the white bulb will operate. b) None of the bulbs will operate. c) Only the white and yellow bulbs will operate. d) Only the red and blue bulbs will operate. 8) Which procedure will result in only the blue lightbulbs operating? a) Close Switches 1 and 2 and leave Switch 3 open b) Close Switch 3 and leave switches 1 and 2 open c) Close Switches 2 and 3 and leave Switch 1 open d) Close Switch 2 and leave switches 1 and 3 open 9) When the student connects the wires as shown, which of the bells will ring? a) Bell 1 only b) Bells 1 and 4 only c) Bells 3 and 4 only d) Bells 1, 2, 3, and 4 10) In which of these will the other lightbulbs still light even if one bulb is burned out? a) b) c) d)

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