[Video] Q11: An object on earth has a weight of 150 newtons. on which planet would the same object have an approximate weight of 170 newtons?

Explanation for Question 11 From the Math (Calc) Section on the Official Sat Practice Test 3

Now for number 11, like number 10, we're going to use this table to 2 the left and also the description in the paragraph. 3 And it tells us that an object on earth weighs 115 Newtons, 4 right? So this one 50 is a w it's a weight. 5 And then it says on which planet would the same object have an approximate 6 weight of 170 Newtons. 7 And so the first thing that we need to do is find, 8 okay, well, wait is equals mass times gravity. 9 And we know that these planets, right, as we change planets, 10 we're not changing the mass. It's the gravity that's changing. 11 So a good first step would be to, um, 12 well first find where earth is. Earth is right here at 9.8. 13 And then if we look at our answer choices, right, 14 we see that we are going from 150 to 170. 15 So our weight is getting bigger. 16 So if we're going to be smart, right, we can kind of eliminate maybe 17 one or two answer choices right off the bat, 18 because if our weight is getting bigger, that means that the gravity must've got 19 bigger, it's not the mass that changes it's the gravity. 20 So that means I'm multiplying the mass times a bigger G a bigger gravity, 21 right? And so if we see Venus has a smaller gravity than earth, 22 so Venus can't be our answer. Saturn has a bigger gravity. 23 So Saturn is a possibility. Uranus also has a bigger gravity. 24 So that's a possibility. And Neptune finally, 25 also has a bigger gravity. So these are all possible answers, 26 B, C and D. And so perhaps a good first step no...