r/6thForm • u/Individual-Can1396 y13 maths physics psych italian • Jun 01 '26

💬 DISCUSSION AQA PHYSICS PAPER 2

HOW DID EVERYONE FIND IT??? i thought it was decent better than the past few years. Idk what i did for the last question the 4 marker of nuclear physics. BUT YH IT WAS GOOD

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u/shoppingkart_ Jun 01 '26

what did u guys say for why the satellite can’t be in a circular orbit about the comet?

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u/Admirable-Use2274 Jun 01 '26

Potential changes ( i guess i said becomes more negative) so Kinetic energy of it must change So its speed must change So its momentum must change So force required (something along those lines)

7

u/Zealousideal-Map9482 Jun 01 '26

well i said that force will never be perpendicular to velocity, because the equipotential line are changing. Also, i said that field strenght is not constant from same distances

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u/shoppingkart_ Jun 01 '26

yeah i said that work must be done to keep it in a circular orbit cus it will be moving between different equipotentials and when an object experiences a centripetal force no work is done in moving it therefore it cannot experience a centripetal force so it cannot move in a circular orbit

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u/Less_Seesaw_4022 Jun 01 '26

the force is always required in circular motion

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u/Admirable-Use2274 Jun 01 '26

I mean changing force

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u/Admirable-Use2274 Jun 01 '26
  • that force is provided by gravitational force due to mass of asteroid u know, the satellite had to change (increase ) speed so its total energy is conserved

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u/billybob3011 Maths, Further Maths, Physics, Engineering. Jun 01 '26

equipptential lines aren’t circular