PBL Update: Feb 10

blog.hkis.edu.hk/wp/krohrs/

1. What are you going to build (8th grade)?

We are going to build a bike that powers a fan and creates light.

2. Why have you decided to build this object (energy transfer system) a working model (8th grade)?

We decided to build this energy transfer system because it is both practical and clearly shows electricity working. It is practical because the fan could blow away leaves near your bike, and the light can help you pedal through the dark. It shows electrical energy in two ways- the light turning on, and the propeller blowing. It shows kinetic by the person pedalling and turning it into electricity. The bike itself stores potenital energy because it is waiting to use the energy it has.

3. What materials are you going to need to complete your build  (8th grade)?

The materials we need to get are:

– 1 bike
– wooden sticks
– 1 LED light
– small gauge wires
– 1 RR DC motor
– 1 QQ DC motor

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