An Electron Is Accelerated from Rest Through a Potential Difference

question 6

Multiple Choice

An electron is accelerated from rest through a potential difference of 50.0 kV. What is the TOTAL energy of the electron? (c = 3.00 × 10⁸ m/s, e = 1.60 × 10^-19 C, mel = 9.11 × 10^-31 kg)

• A) 8.00 × 10^-15 J
• B) 16.2 × 10^-15 J
• C) 8.20 × 10^-14 J
• D) 9.00 × 10^-14 J
• E) 16.2 × 10^-14 J

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Definitions:

Dependent Variable

The variable in a study that is expected to change in response to changes in the independent variable, often measured to assess the effect of a treatment.

Experimental Group

The group in an experiment that receives the treatment or condition being tested, as opposed to the control group.

Control Group

In scientific research, a group of subjects that does not receive the experimental treatment and is used as a baseline to compare the effects of the treatment.

Low-Fat Diet

A nutrition plan focusing on reducing the intake of fats, particularly saturated fats and trans fats, for health reasons.