Useful Circuits Worksheet
Team Members:
 Instructions
You are a security engineer! You need to design a circuit where an alarm will sound if an intruder
steps on it. Then design a circuit where an alarm will sound if a drawer is opened.
You are a broadcast engineer! You need to design an electronic quiz game. Design a circuit using
circuit diagram symbols and correct answers, where the correct answer will light a bulb or sound a
buzzer.
You are an electrical engineer! You need to design a doorbell for the hearing impaired. Design a
circuit where you can control two bulbs separately, with a switch, so that both bulbs are equally
bright, and could be located in different rooms of a house.
Draw your own circuit diagram below showing how your circuit should be connected:
You are a civil engineer! You need to design a traffic light circuit where the red, amber and green
bulbs can be switched on and off separately, but the red and amber bulbs can also light together.
Draw your own circuit diagram below showing how your circuit should be connected:
Working with Wind Energy Worksheet
Team Members:
Design Your Own Windmill
You are working as a team of engineers who have been given the challenge to design a windmill
out of a list of given items. Your windmill will need to be able to withstand wind from a fan for at
least one minute while winding a string or wire to lift a light object such as a teabag. You are
working on a budget and will have to create your design in a cost efficient way. You may return
materials, exchange materials with other teams, but will need to determine the "cost" of your
windmill – the least expensive design that meets the challenge will be considered the most
efficient design! Your windmill may be vertical (pointing upward) or horizontal (pointing to the
side).
Planning Stage
Meet as a team and discuss the problem you need to solve. Then develop and agree on a design
for your windmill. You'll need to determine what materials you want to use - keep in mind that
your design must be strong enough to withstand wind from a fan or hairdryer and the base
cannot move, as it is secured using a clamp stand. Draw your design in the box below, and be
sure to indicate the description and number of parts you plan to use. Present your design to the
class. You may choose to revise your teams' plan after you receive feedback from class.
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