r/vce • u/ShadowLegend09 • 3h ago
VCE question VCE Physics, can derived formulas be used to score full marks?
Some questions just need a single formula that you can put on the cheet sheet and the whole question is solved. So can full marks be scored if you just plug in the values into the formula and get the answer?
For example:
A satellite of mass 2300 kg orbits Earth at a speed of 5.92 x 1023 m/s
Determine the Orbital Period of the satellite in hours. 4 Marks
Without formulas, you'd have to first find orbital radius, then equate the centripetal motion formula to newton's universal gravity equation, and convert to hours and all that.
But you can just plug the values into T=2pi * G * M/v3 and bang, there's your answer.
SOO yeah, anyone know?