Physics
20.1 Electric charge and static Electricity
20.2 Electric current and Ohm's Law
20.3 Electric circuits
20.4 Electronic Devices
How can you Reverse the Battery Direction in a Flashlight?
Procedure
Remove a battery from a two-battery flashlight. Notice that one end of the battery is labeled + (positive).
Return the battery to the flashlight in the same position it was in before. Turn the flashlight on and then off. Observe what happens.
Remove the battery and replace it so that it faces the opposite direction. Predict what will happen if you turn the flashlight on. Test your prediction.
Think About It
comparing and contrasting Describe your results when the batteries faced the same direction and when they faced opposite directions. How are these results the same or different?
inferring What do your results indicate about how batteries might work?
predicting Do you think that the flashlight will work if you reverse the direction of both batteries? Explain your answer.