1. An electron and a proton are accelerated from rest through the same potential difference. The electron's kinetic energy is (a) negative, while the protons kinetic energy is positive. (b) positive, while the proton’s kinetic energy is negative. (c) much higher than the kinetic energy of the proton due to the electron's much smaller mass. (d) much lower than the kinetic energy of the proton due to the proton's much higher mass. (e) equal to the proton kinetic energy in magnitude but opposite in sign. (f) equal to the kinetic energy of the proton.

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Chapter1: Units, Trigonometry. And Vectors
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1. An electron and a proton are accelerated from rest through the same potential difference. The
electron's kinetic energy is
(a) negative, while the protons kinetic energy is positive.
(b) positive, while the proton's kinetic energy is negative.
(c) much higher than the kinetic energy of the proton due to the electron's much smaller mass.
(d) much lower than the kinetic energy of the proton due to the proton's much higher mass.
(e) equal to the proton kinetic energy in magnitude but opposite in sign.
(f) equal to the kinetic energy of the proton.
2. A proton is fired toward a stationary and positively charged nucleus of a He atom from a distance of 1
mm and with kinetic energy of 10' Joules. After the proton reaches the distance of the closest approach to
the nucleus, its kinetic energy:
(a) stays the same.
(b) gets converted back into potential energy.
(c) keeps increasing.
(d) increases first and then remains the same.
(e) keeps decreasing.
(f) decreases first and then remains the same.
Transcribed Image Text:1. An electron and a proton are accelerated from rest through the same potential difference. The electron's kinetic energy is (a) negative, while the protons kinetic energy is positive. (b) positive, while the proton's kinetic energy is negative. (c) much higher than the kinetic energy of the proton due to the electron's much smaller mass. (d) much lower than the kinetic energy of the proton due to the proton's much higher mass. (e) equal to the proton kinetic energy in magnitude but opposite in sign. (f) equal to the kinetic energy of the proton. 2. A proton is fired toward a stationary and positively charged nucleus of a He atom from a distance of 1 mm and with kinetic energy of 10' Joules. After the proton reaches the distance of the closest approach to the nucleus, its kinetic energy: (a) stays the same. (b) gets converted back into potential energy. (c) keeps increasing. (d) increases first and then remains the same. (e) keeps decreasing. (f) decreases first and then remains the same.
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