SAT Physics Practice Test 20
Part C
1. A person who normally weighs 900N at sea level climbs to the top of Mt. Everest. While on top of Mt.
Everest that person will weigh
A. zero.
B. approximately 900N.
C. considerably less than 900N but more than zero.
D. considerably more than 900N.
E. Ne...
1. A person who normally weighs 900N at sea level climbs to the top of Mt. Everest. While on top of Mt.
Everest that person will weigh
A. zero.
B. approximately 900N.
C. considerably less than 900N but more than zero.
D. considerably more than 900N.
E. Need more information.
2. If a shaft were drilled through the center of the earth and all you had to do was step into the shaft to
"fall" to the other side, and a 800N person took the trip, her weight at the exact time she passed through
the exact center of the earth would be
A. zero.
B. 800N.
C. less than 800N but more than zero.
D. more than 800N.
E. Need more information.
3. A 750N person stands on a scale while holding a briefcase inside a freely falling elevator. Which of the
following is true?
A. If the briefcase were released it would rise to the ceiling.
B. The person's acceleration is zero.
C. The person's attraction toward the earth is zero.
D. The person's apparent weight is zero.
E. If the briefcase were released it would fall to the floor.
4. The time it takes a satellite to make one orbit around the earth depends on the satellite's
A. acceleration.
B. weight.
C. direction of rotation.
D. distance from earth.
, E. launch speed.
5. Geosynchronous satellites remain over the same spot on the earth's surface because they
A. orbit the earth every 24 hours.
B. are in polar orbits.
C. rotate opposite the earth's rotational direction.
D. have a varying orbital height.
E. use terrain reading technology to remain on station.
6. Rutherford's results in his famous gold foil experiment proved that atoms
A. are mostly space.
B. are in continuous motion.
C. have negative orbitals.
D. have diffuse charge distribution.
E. have dense crystalline structure.
7. A hanging weight stretches a spring 8 cm. If the weight is doubled and the spring constant is not
exceeded, how much will the spring stretch?
A. 4 cm
B. 8 cm
C. 12 cm
D. 16 cm
E. 20 cm
8. The volume of an ideal gas is reduced to half its original volume. The density of the gas
A. remains the same.
B. is halved.
C. is doubled.
D. is tripled.
E. is quadrupled.
9. Refrigerators and freezers perform their functions by
A. converting hot air to cold air.
B. keeping hot air out with cold air pressure.
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