I need to study for my test and know the answer to these questions. a. List five different types of energy forms in a bike or its rider. b. Describe how one of these energy types is transformed? c. What is a dynamo and how does it work? Tell me what i did wrong. ( if i did ) . I am not sure if it is correct. 2. a. kinetic and sound energy. b. c. Dynamo is an instrument on a bike that is used to produce electrical energy. A magnet is attached to the centre of a wheel (this magnet spins with the wheel) and a coil of copper(cu) surrounds it (does not move). The end of the copper coil is attached to a light usually on the handle bars. As you push on the pedals and make the wheels move, a current is produced that turns the light on.