# AP Physics 1: 2.2 Fields in Space

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

AP Physics 1 | Fields in Space |

Language | English Language |

Science Practice 1 | Using representations and models |

### Transcript

of g what is the acceleration due to gravity For

objects drop near the surface of europa And here the

potential answers Of course first thing we do once landing

on europa would be the trip Coming off our spaceship

would be one small step for man and one big

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

out how hard that paul would be Luckily we know

how to calculate the surface gravity of an object The

formula is the gravitational constant or g multiplied by mass

divided by the square of the radius Well unfortunately we

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

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

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

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

about it like this The gravity of earth equals the

gravitational constant times the mass of the earth divided by

the square of the radius of the earth So to

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

equation would look about like this The gravity of your

over equals the gravitational constant times one tenth of the

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

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

ratio of point one point two Five squared which describes

the relationship between the mass and radius of europa Well

all we have to do is take point one and

divided by point both six to five and we get

one point Six That means the gravity of europa is

one point six times the gravity on earth making d

the correct answer All right well europe is pretty cool

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