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

AP Physics 1: 2.1 Fields in Space. What are the units for the universal gravitational constant G?

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...

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.

AP Physics 1: 1.4 Fields in Space. What is the resulting vector if the two vectors above are added?

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: 2.3 Fields in Space. What is the gravitational force between the two planets?

AP Physics 1: 2.4 Fields in Space. Which of the following would help bring the satellite into this new orbit?

Don't lose your marbles over this AP Physics question. We'll be sure to point you in the right direction. 

We'd be lion if we said this was an easy question, but give it a shot! Heh. Lion. How punny. 

There's a giant blob monster attacking New York. Luckily, Shmoop isn't based in New York, so you don't need to worry about getting your fill of shm...

Aaaaaand we have liftoff! On another shmoopy question, that is. Take a look at this question and see if you can figure it out. Don't worry if you c...

AP Physics 1: 1.5 Fields in Space. If a spaceship came close to the earth, which of the following would be correct about the situation?

Maybe if the dinosaurs had paid more attention in AP Physics, they could've figured out a way to avoid that pesky extinction problem. Oh well. Solv...