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AP Physics 2 Videos 59 videos

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AP Physics 2: 1.2 Properties of Objects and Systems 169 Views


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AP Physics 2: 1.2 Properties of Objects and Systems. If the amount of mass lost during a nuclear reaction doubles, what happens to the energy released?

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Transcript

00:00

Thank you we sneak and here's your shmoop du jour

00:05

brought to you by albert einstein Albert was the guy

00:08

who came up with the whole e equals m c

00:10

squared thing had great hair He also came up with

00:13

the theory of relativity helped to create a model of

00:16

warm holes and did a bunch more super smart stuff

00:20

As for us this morning we made a pbj on

00:23

lee We got distracted and forgot to put jelly in

00:25

it so yeah we're not quite on his level We've

00:28

made a peepee If the amount of mass lost during

00:31

a nuclear reaction doubles what happens to the energy released

00:35

and hear potential answer double Okay we've been waiting for

00:41

this moment We finally get to talk about the world's

00:44

most famous equation E equals m c squared who And

00:49

yes is the kind of stuff that gets us well

00:51

equals m c squared describes how energy and mass are

00:54

related to each other Energy equals mass times the speed

00:58

of light squared speed of light is a really big

01:01

number two hundred ninety nine million seven hundred two thousand

01:04

forty Fifty eight meters per second to be precise fast

01:08

hopefully square that we could spend a few eons counting

01:12

that high with our fingers and toes We have to

01:15

take our socks off What does that mean Well it

01:19

means that if mass is converted to energy we'll have

01:23

a whole lot of energy on our hands Like scary

01:25

amounts of energy Kaboom Amounts of energy like that in

01:29

a nuclear reaction mass is converted to energy The more

01:33

mass that's lost in a reaction the more energy that's

01:36

produced waken Think of this equation as e equals the

01:39

change in mass times the speed of light square Well

01:44

if we double the change in mass we just add

01:47

to the coefficient and because we're doubling one side of

01:51

the equation We know that the other side has to

01:53

double to no The correct answer is deep right there

01:57

which just makes sense if we double one side of

01:59

an equation and the other side has increased proportionally way

02:03

can't be quite a smart Is einstein waken look like 00:02:07.945 --> [endTime] hey baby yeah we're dialing

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