Atomica

Your weight on other planets

Set your mass, then tap a world. Your mass never changes, but the pull of gravity does, so the number on the scale would be very different.

On Mars you would weigh
18.9 kg
gravity 3.71 m/s² · that is 0.38× Earth

Just over a third of Earth's gravity. You could jump nearly three times as high.

A 50 cm jump on Earth becomes132 cm
A 1 kg bag of rice feels like0.38 kg

Weight = mass × gravity (W = m g). Your mass stays 50 kg everywhere; the pull on it changes from world to world.

Tap a world
The Sun is off the chart: 1398.0 kg.
Why gravity differs

Bigger, denser worlds pull harder. Jupiter has 318 times Earth's mass, but it is so wide that at its cloud tops the pull is only 2.5 times ours.

Mass vs weight

Mass is how much stuff you are made of, in kg. Weight is the force gravity puts on that mass, in newtons. Bathroom scales measure force but print it as kg.

In orbit

On the space station you'd read zero, not because gravity is gone (it's 90% as strong) but because you and the scale are falling together.

Learn about gravity in Level 4