1: Both the sun and the moon pull on the earth. The sun’s attraction is much greater that the moon’s. Why then is the moon most responsible for the tides?
2: What keeps the planets from crashing into the sun?
3: Atoms are made of a nucleus and electrons. Which is most responsible for their volume? Their mass?
4: If you triple the linear size of an object, how much larger is its area? Its volume?
5: Compared to the buoyant force of a submerged, 1 cm3 block of lead, what is the buoyant force of a submerged, 1 cm3 of aluminum?
6: What is the force that holds a suction cup on the wall?
7: The moderate temperatures of islands throughout the world has much to do with water’s
- A)poor conductivity. B) vast supply of internal energy. C) high specific heat. D) high evaporation rate. E) absorption of solar energy
8: What are the three processes of heat transfer? Which one is responsible for the earth’s heat loss?
9: Starting with evaporation, discuss cloud formation.
10: Make a simple illustration of a temperature inversion in the Salt Lake Valley.
11: What is the source of all wave motion?
12: How do you estimate the distance, in kilometers, you are from a bolt of lightning?
13: What are the units of measure of frequency? Wavelength? Loudness? Why is 60 decibels 1000 times as intense as 30 decibels?
14: Why, during a lightning storm, are the safest places for us inside a car or metal building?
15: Will a light bulb with a thick filament carry more or less current than a light bulb with a thin filament connected to a similar power source? In a circuit of two lamps in series, if the current through one lamp is 1 amp, what is the current through the other lamp?
16: Why does a compass needle point north? What happens when it is taken to the Southern Hemisphere?
17: What force field would be used to change an electron’s speed?
What force field would be used to change an electron’s acceleration, but never change its speed?
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