What is the definition of the word theory as used in science? How is the word misused in day-to-day
language? What will be an ideal response?
A theory in science is a coherent explanation for one or several related natural phenomena that is
supported by a large body of objective evidence. Colloquially, theory is used to mean an idea; the
better term for that would be hypothesis.
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When wind encounters the blades of a wind turbine and produces energy, the speed of the wind after hitting the blades is
A. not affected. B. speeded up. C. slowed. D. not enough information
Compared with a 1-kg block of solid iron, a 2-kg block of solid iron has twice as much
A) inertia. B) mass. C) volume. D) all of the above E) none of the above
Clouds and precipitation are frequently found on the downwind side of a large lake. This would indicate that the air on the downwind side is
a. ?converging and rising. b. ?converging and sinking. c. ?stable and rising. d. ?diverging and sinking. e. ?diverging and rising
What volcanic events formed Crater Lake, Oregon? When did they take place?
A) A powerful explosion blew away the top of a stratovolcano 10 million years ago. B) Caldera collapse followed major ash and pyroclastic-flow eruptions 6000 years ago. C) The crater of a large, extinct cinder cone filled with water 5 million years ago. D) Landslides and volcanic mudflows dammed the Mazama River 500 years ago.