D1.2 Gravitational field strength [IB Physics SL/HL]

[VishnuAnand-sh]

thank u for saving me 1 day before my physics mock exam my goat

[Nighty]

I have a question for the Earth radius and mass example. I made a gE for the earth and a gP for the planet. Then I put in the 10 x M and 20R for gP and made the ratio thing which you showed in the D1.1 example. I got 40m/s^2. Why wouldn't this work here?

[rnqi-wgmo]

Thanks for the amazng videos. Small correction: In the last question 9:47 the number of significant figures used should be one, hence 0.2 m.s^-2

[dnuma]

Isnt the gravity at the surface of the Earth 10 in P1, 9.8 in P2
Please correct me if im wrong since P1 is tomorrow

[teddywillistickenham]

For the Deimos mass question, isn't M = mass of Mars, not mass of Deimos? You used Deimos' mass.

[sinaaminian]

Hello is there any way i can have access to the notes please?

[saranor]

I am sorry to ask. But how can a celestial object bigger and heavier than earth have less gravitational force? (To compare my intuition, I looked up the g's of other objects, jupiter's g force; 24 m/s^2, moon; 1, 62. I have no teachers to ask questions to so I am hoping I can find an answer here. Excuse me, I just couldn't understand...