If Yitzhak were to climb Mount Everest (5 miles above sea level) his mass at Stockton would be, compared to his mass at the top of the mountain,
a. Slightly larger, by less than 1%
b. 5 times as large
c. Exactly the same
d. 5 times as small
e. Slightly smaller, by less than 1%
Assume that the mass of the earth, the radius of the earth, and Yitzhak’s mass were all doubled. Then what would happen to Yitzhak’s weight?
a. It will double
b. It will be multiplied by four
c. It will be one-quarter as large
d. It will be the same
e. It will be multiplied by eight
Assume that a very massive star collapses into a black hole. During this process the star’s:
a. Mass and radius would both increase greatly
b. Mass and radius would both decrease greatly
c. Mass and radius would both stay the same
d. Mass would increase greatly; radius will decrease greatly
e. Mass would stay the same; radius will decrease greatly
The escape velocity of an object of mass m, from a planet of mass M, and radius R, depends on all of the following except:
a. M
b. R
c. m
d. G (the constant of the gravitational force)
e. None of the above; it depends on all of the above four factors M, R, m, and G
Which of the following statements best describes the size of the sun during the last million years? During that time the sun has:
a. Expanded immensely
b. Contracted immensely
c. Oscillated continuously between major expansion and major contraction
d. Stayed at about the same size
e. Underwent regular cataclysmic supernova explosions