At an altitude of 200 km, the downward force of gravity on an Earth satellite is:
A. The same as on the surface of the Earth
B. A little bit weaker
C. Zero
D. About half as strong as on the surface
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B. A little bit weaker
,Skyhook, if built, is
A. a way of getting to very high orbits
B. a way to get into space using less energy
C. a safer way to get into space
D. a faster way to get into space
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B. a way to get into space using less energy
Wine made from fossil fuels is not radioactive because:
A. The radioactivity has decayed away
B. There is no carbon in such wine
C. Ancient plants were never radioactive
D. The half-life of the key elements is too long
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A. The radioactivity has decayed away
The fraction of the US population that dies from cancer is typically
A. About 1 in 10,000
B. About 1 in 100
C. About 1 in 5
D. Most of us die from cancer
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, C. About 1 in 5
The Canadian Candu reactors use:
A. light water
B. deuterium
C. thermonuclear fusion
D. tritium
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B. deuterium
The term China Syndrome refers to
A. the accident at Chernobyl
B. meltdown of the nuclear fuel
C. production of plutonium in China
D. nuclear terrorism
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B. meltdown of the nuclear fuel
The radioactivity from your own body:
A. Does not cause cancer because it is natural
B. Is responsible for more than half of cancer in humans
C. Does cause cancer, but at a very low rate
D. Helps reduce natural cancer, just as radiation therapy does
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, C. Does cause cancer, but at a very low rate
Fallout is much worse if the bomb
A. is exploded near the ground
B. is exploded at high altitude
C. undergoes fewer generations
D. contains no fissile material
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A. is exploded near the ground
Entropy (optional topic):
A. Heat
B. Temperature
C. Disorder
D. Energy
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C. Disorder
PCR involves
A. tritium
B. carbon-14 (radiocarbon)
C. heavy water
D. DNA
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A. The same as on the surface of the Earth
B. A little bit weaker
C. Zero
D. About half as strong as on the surface
Give this one a try later!
B. A little bit weaker
,Skyhook, if built, is
A. a way of getting to very high orbits
B. a way to get into space using less energy
C. a safer way to get into space
D. a faster way to get into space
Give this one a try later!
B. a way to get into space using less energy
Wine made from fossil fuels is not radioactive because:
A. The radioactivity has decayed away
B. There is no carbon in such wine
C. Ancient plants were never radioactive
D. The half-life of the key elements is too long
Give this one a try later!
A. The radioactivity has decayed away
The fraction of the US population that dies from cancer is typically
A. About 1 in 10,000
B. About 1 in 100
C. About 1 in 5
D. Most of us die from cancer
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, C. About 1 in 5
The Canadian Candu reactors use:
A. light water
B. deuterium
C. thermonuclear fusion
D. tritium
Give this one a try later!
B. deuterium
The term China Syndrome refers to
A. the accident at Chernobyl
B. meltdown of the nuclear fuel
C. production of plutonium in China
D. nuclear terrorism
Give this one a try later!
B. meltdown of the nuclear fuel
The radioactivity from your own body:
A. Does not cause cancer because it is natural
B. Is responsible for more than half of cancer in humans
C. Does cause cancer, but at a very low rate
D. Helps reduce natural cancer, just as radiation therapy does
Give this one a try later!
, C. Does cause cancer, but at a very low rate
Fallout is much worse if the bomb
A. is exploded near the ground
B. is exploded at high altitude
C. undergoes fewer generations
D. contains no fissile material
Give this one a try later!
A. is exploded near the ground
Entropy (optional topic):
A. Heat
B. Temperature
C. Disorder
D. Energy
Give this one a try later!
C. Disorder
PCR involves
A. tritium
B. carbon-14 (radiocarbon)
C. heavy water
D. DNA
Give this one a try later!
