Short answer questions and answers
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A child blows on a pinwheel to start it spinning. Use the Law of Conservation of Energy to explain why the pinwheel slows and eventually stops (3)
Conservationof energy and two energy changes
An insect lands on a compact disc that is put into a player. If the insect spins with the disc is the insect accelerating? Why / why not? (2)
Is it acclerating yes or no and why
An eagle flies from it's perch in a tree to the ground. Describe its energy transformations. (3)
Start from the perch then half way down, than on the ground.
How can you tell if an object is moving if its motion is too slow to see? yes/no use a specific example to explain it (2)
Use soemthing else to explin it. ( REFRENCE POINTS)
