An Electron Has a Speed of 0

question 39

Multiple Choice

An electron has a speed of 0.643c. Through what potential difference would the electron need to be accelerated (starting from rest) in order to reach this speed? (c = 3.00 × 10⁸ m/s, e = 1.60 × 10^-19 C,
M_el = 9.11 × 10^-31 kg)

• A) 160 kV
• B) 130 kV
• C) 180 kV
• D) 200 kV

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Definitions:

ATP

ATP, or adenosine triphosphate, serves as the primary energy carrier molecule in cellular metabolic activities.

Calvin Cycle

Cyclic series of reactions in the chloroplast stroma in photosynthesis; fixes carbon dioxide and produces carbohydrate. See C3 Plant.

Ribulose Bisphosphate

A five-carbon sugar to which atmospheric carbon dioxide is bound during the first major step of carbon fixation in photosynthesis.

PGA Molecules

Short for phosphoglyceric acid, involved in the biochemical process of photosynthesis and glycolysis.