Relationships Between Force, Field, Energy, Potential Video Lessons

Concept

# Problem: A proton with an initial speed of 900000 m/s is brought to rest by an electric field.Part A- Did the proton move into a region of higher potential or lower potential?Part B - What was the potential difference that stopped the proton?ΔU = ________VPart C - What was the initial kinetic energy of the proton, in electron volts?Ki =_________eV

###### FREE Expert Solution

Part A

The proton is a positive charge and it is slowing down.

Therefore, it must be moving from a region of lower potential to a region of higher potential.

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###### Problem Details

A proton with an initial speed of 900000 m/s is brought to rest by an electric field.

Part A- Did the proton move into a region of higher potential or lower potential?

Part B - What was the potential difference that stopped the proton?
ΔU = ________V

Part C - What was the initial kinetic energy of the proton, in electron volts?
Ki =_________eV