You drop a freely falling body at the equator and at the north pole. The acceleration of the freely falling body at the equator is _______________ the acceleration of the freely falling body at the north pole.
Fill in the blank(s) with correct word
[Ques. 2] The laws of conservation of energy and momentum:
a. apply in all circumstances.
b. are disproved by quantum mechanics.
c. do not apply at the subatomic level.
d. apply to some interactions but not at all to some others.
e. are broken only for unmeasurable lengths of time.
[Ques. 3] You stand on a bathroom scale at the equator and at the north pole. The scale reading at the equator is _______________ the scale reading at the north pole.
Fill in the blank(s) with correct word
[Ques. 4] Electrons interact with each other by exchanging:
a. gluons.
b. photons.
c. neutrinos.
d. nucleons.
e. charges.
[Ques. 5] A car goes around a curve at 40 m/s. An accelerometer in the car measures the centripetal acceleration of a 2 kg body in the car to be 8 m/s2 . The radius of the curve is __________.
Fill in the blank(s) with correct word
[Ques. 6] Which of these is considered true about the mass of the neutrino?
a. It is the same as the mass of an electron or positron.
b. It is the same as the mass of a nucleon.
c. It is the same as the mass of an alpha particle.
d. It is zero.
e. It is slightly more than zero, but less than an electron.
[Ques. 7] You whirl a 2 kg body attached to a 1 meter cord around your head in a nearly horizontal circle with a speed of 4 m/s. The tension in the cord is _________.
Fill in the blank(s) with correct word
[Ques. 8] Which feature of this plot indicates that the neutrino has a very small rest mass?
a. The location of the peak near a kinetic energy of 0.2.
b. The overall slope between the peak and the maximum kinetic energy.
c. The value of the maximum kinetic energy.
d. The brief upward slope initially of the curve.
e. The absence of any events for large values of the kinetic energy.
[Ques. 9] Starting from rest, a 2 kg body acquires a speed of 8 m/s in 2 seconds. The net force acting on the body is __________.
Fill in the blank(s) with correct word
[Ques. 10] What property of beta decay led to the proposal that the neutrino had to exist?
a. Beta decay changes the charge of nucleons.
b. Beta decay results in electrons with a single predictable kinetic energy.
c. Positron rather than electron emission is observed from some nuclei.
d. Beta decay can result in transmutation from one element to another.
e. Beta decay results in electrons with a range of kinetic energy levels.
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