Phy30 L10-12

be

• electromagnetism

• magnetic fields

Multiple Choice

From the previous question, what electrostatic force would a single proton experience at point Z? (Consider how this may differ for an electron...)

• 1.8x10^-14N up

• 1.8x10^-14N down

• 9.5x10^-15N up

• 9.5x10^-15N down

• will be more convenient

• 1 eV = 1.6x10^-19J

​ both Joules & electron-volts

Multiple Select

What are equivalent units for a J of potential energy?

• 
  $$\frac{kg\cdot m^2}{s^2}$$

• eV

• MeV

  (as seen on data sheet)

• $$kW\cdot h$$

  (as seen on electric bills)

• $$\frac{kg\cdot m^2}{s^3}$$

​Now try to complete
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