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Question
Germanium, Ge (number 32), computer chips operate faster than silicon, Si (number 14), computer chips. So how might a gallium, Ga (number 31), chip compare with a germanium chip?A) A gallium chip would be even faster because the gallium is more metallic.
B) A gallium chip would be slower because its electrons are more loosely held.
C) Gallium is located just below aluminum, which is widely known to be an electrical insulator.
D) Gallium is more nonmetallic and so it does not conduct electrons very well.
Answer
This answer is hidden. It contains 1 characters.
Related questions
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Heat energy is measured in units of
A) degrees.
B) joules.
C) calories.
D) both joules and calories.
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When the temperature of a fixed volume of air initially at 0 C is lowered by 1 degree, its pressure
A) decreases by 1/273.
B) decreases by 100/273.
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D) increases by 100/273.
Q:
Which of these is the smallest?
A) 1 Celsius degree
B) 1 kelvin
C) 1 Fahrenheit degree
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B) potential energy.
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Q:
Distinguish between the concepts of thermal energy, temperature, and heat.
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A) surface of bodies of water.
B) layer of water slightly below the surface.
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Water at 4C will expand when it is slightly
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C) both of these
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If water at 0C slightly increases in temperature, the water
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Q:
A kg of 40C water and a kg of 20C water, after being mixed, have a temperature of 30C. However, the final temperature of a 1-kg iron block at 40C placed into 1 kg of water at 20C is
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Q:
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A) becomes more ordered.
B) becomes less ordered.
C) reaches equilibrium.
D) moves toward destruction.
Q:
When work is done by a system and heat is subtracted, the temperature of the system
A) increases.
B) decreases.
C) remains unchanged.
Q:
Which law of thermodynamics addresses the direction of heat flow?
A) First law
B) Second law
C) Third law
D) all of the above
Q:
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A) First law
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Q:
At some point between Earth and the Moon, the forces due to gravity on a space traveler would be the same when this point is
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Q:
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A) less the gravitational force between them.
B) more the gravitational force between them.
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Q:
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A) one-quarter.
B) half as much.
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B) increase.
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Q:
Newton discovered
A) gravity.
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C) neither of these
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A) go into circular orbit about Earth.
B) rise and fall back to Earth's surface.
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B) farthest from the Earth.
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B) farthest from the Earth.
C) neither of these
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From Earth, one satellite appears to overtake another. The faster satellite that is seen to overtake the other is
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B) lower.
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Q:
The fastest moving planet in a solar system is the
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B) most massive planet.
C) planet nearest the Sun.
D) planet farthest from the Sun.
E) none of the above