Energy Transfer: Question Preview (ID: 1067)


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If three unknown materials have the same mass but different volumes, which will have the greatest density?
a) the material with the least volume b) the material with the greates volume c) d)
The same boat will float higher in the Great Salt Lake than it will in a lake in Wisconsin. Why?
a) The Great Salt Lake has a bigger volume b) The Great Salt Lake has a greater density c) The Great Salt Lake has a greater mass d)
If a wooden block were cut into eight identical pieces, the density of each piece compared to the density of the original block would be
a) One-eighth the density of the original block b) Eight times bigger than the original block c) The exact same as the original block d)
An iceberg lies dead ahead of the Titanic. Why is the iceberg on the ocean's surface?
a) The iceberg has air bubbles in it which lower its density. b) Water expands as it cools making it more dense. c) d)
Which will float higher in the water, an empty ship or an identical ship filled with styrofoam?
a) The ship filled with styrofoam. b) The empty ship. c) d)
Which of the following is the best example of convection?
a) A forced air heating system b) Burning the roof of your mouth on hot pizza c) Getting a sunburn while snow skiing on a sunny day d)
Which of the following is the best example of radiation?
a) A forced air heating system b) Burning the roof of your mouth on hot pizza c) Getting a sunburn while snow skiing on a sunny day d)
What type of heating does a microwave most rely on?
a) Conduction. b) Convection. c) Radiation. d)
Which of the following explains why when you bake a pizza on the bottom rack of the oven the crust gets crispier than on the top rack.
a) There is more heat transferred by convection on the bottom of an oven. b) The pizza is in a more direct line of heat for conduction at the bottom of an oven. c) The pizza is in a more direct line of heat by radiation at the bottom of an oven. d)
How do the radiant heaters in use at ice hockey arenas work?
a) The radiant heaters only heat matter they encounter so the air stays cool. b) The radiant heaters warm the air which then warms the people. c) The radiant heaters set up convection currents in the air to warm the people. d)
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