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AP Physics 2: 1.2 Fields in Space. What is the magnitude and direction of magnetic field BA at point A?
AP Physics 2: 2.1 Object Interaction and Forces. Which of the following is not one of the four fundamental forces?
AP Physics 2: 2.4 Object Interaction and Forces. In which situation can electromagnetic, strong, and weak forces be ignored?
AP Physics 2: 2.2 Properties of Objects and Systems 166 Views
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Description:
AP Physics 2: 2.2 Properties of Objects and Systems. What will happen as the robot son moves the sponge near (but doesn't touch) the plate?
Transcript
- 00:00
Hurry And here's your shmoop too sure brought to you
- 00:05
by robots And since they'll probably take over the planet
- 00:08
eventually we just like to take this opportunity to say
- 00:10
that we love robots here It's come up We think
- 00:14
they're just great A robot family drops a metal conducting
Full Transcript
- 00:20
sponge into a sink full of electrons The robot son
- 00:23
is washing the pile of dirty dishes on the counter
- 00:26
he reaches for the first dirty dish which is neutrally
- 00:29
charged What will happen is the robot son moves the
- 00:32
sponge near but doesn't touch the plate And here the
- 00:36
potential answers like neutral and help you play become negatively
- 00:40
trying electrons from funny All right this robot family doesn't
- 00:44
own a dishwasher all right And we hope that robby
- 00:48
the robot here is wearing gloves to wash these dishes
- 00:51
Those electrons can't be good for the metallic skin The
- 00:54
most crucial part of this question is that the sponge
- 00:56
and the plate don't actually touch They did touch Then
- 01:00
electrons might jump from the sponge to the plate but
- 01:03
without any physical contact those electrons are staying put So
- 01:06
what does that mean for our question Well if the
- 01:10
electrons are staying put there's no way C is the
- 01:12
correct choice until science find subatomic size pogo sticks Electrons
- 01:17
aren't leaping onto any neutral dishes and the same goes
- 01:21
for answer d the electrons can redistribute themselves within the
- 01:25
system because there is no system They're not touching and
- 01:28
answer B is out to a neutral object Can't just
- 01:31
go around willy nilly making other objects neutral That violates
- 01:34
the law of conservation of charge So the correct answer
- 01:39
is a the plate is going to just sit there
- 01:42
like a well an empty plate being all relaxed in
- 01:46
neutral We aspire to such a zen like state be
- 01:49
neutral become be the plate Don't be scared of robots 00:01:52.142 --> [endTime] taking over the world
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