Battery Efficiency Experiment

1
Battery Efficiency Experiment

• Garek Chwojko-Frank
• Dominik Skulec
• Lucas Donaldson

2
Question

• Which of the three types of batteries is the most
  energy-efficient, measured in days, with three
  hours on per day?
• We will test
• Rechargable (Sony)
• Duracell
• Energizer

3
Prediction

• Dominik and Garek predict that if a flashlight
  has Energizer batteries, then the flashlight will
  last longest.
• Lucas predicts that if a flashlight has
  rechargeable batteries, then the flashlight will
  last longest.

4
Materials

• 2 each of Rechargeable, Duracell, and Energizer
  batteries
• 3 Flashlights (exactly the same)
• Pencil and paper for measurement
• A clock for measurement

5
Steps

• Place batteries in flashlights
• Turn on flashlights for three hours a day, while
  being watched
• Turn off flashlights when otherwise occupied
• At the end of the day, make sure flashlights are
  off and record that one day has passed
• Repeat the next day until a flashlight turns off
  on its own,then mark that that flashlight has
  turned off, then continue repeating

6
Variables

• Controlled Variable Flashlight type
• Manipulated Variable Battery type

7
Data table
8
Credits

• Author Garek Chwojko-Frank
• Assistance Thomas Chwojko-Frank
• Scientists Lucas Donaldson, Dominik Skulek, and
  Garek Chwojko-Frank
• Teacher Miss Engquist