Science Questions

Question	Answer
What is the Doppler Effect?	The Doppler Effect is the change in frequency of a wave for an observer moving relative to its source
energy = ? × time	energy = power × time
Using the formula: energy = power × time ,solve: How much energy is transferred by a 500 W electric drill in 30 seconds?	15,000 J
When coal is burned in a coal-burning station its chemical energy is transferred to what type of energy?	Electrical Energy
What is the Carbon Cycle?	The series of processes by which carbon compounds are interconverted in the environment, chiefly involving the incorporation of carbon.
What are the optimum conditions for the decay to occur in the carbon cycle?	Warm and Moist
Define the Big Bang	The explosion of dense matter that, according to current cosmological theories, marked the origin of the universe.
Besides Charles Darwin who is also credited with outlining the theory of evolution?	Alfred Russel Wallace
Complete: Inner core, outer core, ???, Crust	Image: core (image/jpg)
Nobel prize physicist Marie Curie is best know for her pioneering research on what?	Radioactivity

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	Created by PatrickNoonan over 11 years ago