Thursday
December 18, 2014

Homework Help: Physics

Posted by Andrea on Sunday, April 6, 2008 at 2:47pm.

1)An electron moved from point A to point B along an equipotential surface.
a)the eclectron performs work in moving from point A to point B
b)Work is required to move the electron from point A to point B
c)Work is both required and performed in moving the electron from point A to point B
d)no work is required to move the electron from point A to point B

Isn't the answer d) because the electron is moving along the surface?

2)A proton is moved from point A to point B along an equipotential surface.
a)the proton's potential energy increases as it moves from point A to point B
b)the proton's potential energy decreases as it moves from point A to point B
c)the proton's potential energy stays constant as it moves from point A to point B

c) since there's no work involved (W=change in PE)

3)2)A neutron is moved from point A to point B along an equipotential surface.
a)the neutron's potential energy increases as it moves from point A to point B
b)the neutron's potential energy decreases as it moves from point A to point B
c)the force exerted on the neutron changes as it moves from point A to point B
d)none of the above

I think it's either d) or c) but i'm not sure.

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