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Playlist AP® Physics 1: Fields in Space 14 videos

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AP Physics 1: 1.1 Fields in Space
195 Views

We've heard of some crazy dieting fads, but leaving the planet may take the cake. We don't suggest you do that, but we do suggest you answer t...

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AP Physics 1: 1.2 Fields in Space
212 Views

Don't let this question about gravitational forces get you down! Yeah, yeah...that was an easy joke. You get what you pay for. 

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AP Physics 1: 1.3 Fields in Space
209 Views

THE EARTH'S MASS IS ABOUT TO DOUBLE. Sorry for the extreme tone; we just want to make sure you understand the...gravity of the situation.

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AP Physics 1: 2.2 Fields in Space 316 Views


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AP Physics 1: 2.2 Fields in Space. What is the acceleration due to gravity for objects dropped near the surface of Europa?

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Transcript

00:00

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

00:05

brought to you by europa which is not a european

00:08

space colony Yet Europa one of jupiter's moons has a

00:13

mass approximately one tenth in a radius approximately one quarter

00:19

of those on earth as measured on earth In terms

00:22

of g what is the acceleration due to gravity For

00:26

objects drop near the surface of europa And here the

00:29

potential answers Of course first thing we do once landing

00:36

on europa would be the trip Coming off our spaceship

00:39

would be one small step for man and one big

00:41

boobs for mankind welcoming shmoop All right so let's figure

00:45

out how hard that paul would be Luckily we know

00:47

how to calculate the surface gravity of an object The

00:50

formula is the gravitational constant or g multiplied by mass

00:54

divided by the square of the radius Well unfortunately we

00:58

don't have the numbers to plug into the formula because

01:01

we don't know the mass of a radius of europa

01:04

But what we do know is how europa's mass and

01:06

radius relate to first mass and radius So let's Think

01:10

about it like this The gravity of earth equals the

01:12

gravitational constant times the mass of the earth divided by

01:17

the square of the radius of the earth So to

01:20

see how europa's gravity relates to the earth's gravity are

01:23

equation would look about like this The gravity of your

01:26

over equals the gravitational constant times one tenth of the

01:30

earth's mass divided by the square of one quarter of

01:34

the earth's radius And now it can solve for the

01:37

ratio of point one point two Five squared which describes

01:41

the relationship between the mass and radius of europa Well

01:45

all we have to do is take point one and

01:46

divided by point both six to five and we get

01:49

one point Six That means the gravity of europa is

01:53

one point six times the gravity on earth making d

01:56

the correct answer All right well europe is pretty cool

01:59

name for a moon but maybe they'll name the next 00:02:01.726 --> [endTime] one something even cooler like alderaan or steve

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