Mistakes Flashcards
When sketching velocity/time graph for equation involving v=xt^>1 what will graph look like
Curve upwards
Moment of inertia of a hoop
I=mr^2
Why will low altitude satellite lose more energy than high altitude satellite
Greater friction from atmosphere so more energy lost
Inductive reactance definition
The opposition of an inductor to changing current.
Explanation for sphere and string, angular motion - when v decreases why no longer in circular path.
Centripetal force will decrease (F=mv^2/r), eventually reaching point where weight is greater than centripetal force, so at top of circle tension in the string will reduce to 0 so string will no longer travel in a circular path.
Working out change in Ep in orbit from high to low orbit, what should value be (+or-)
low Ep- high Ep, should give negative value
Definition of equivalence principle
It is impossible to tell the difference between the EFFECTS of gravity and acceleration
Change that will occur in fusion reactions within the suns core when it leaves the main sequence.
Fusion of hydrogen to helium will STOP (handwriting)
When drawing field patterns what must we do
Ensure all lines hit charges where necessary, if different magnitudes of charge it will cause pattern to skew.
When talking about effect of capacitor/inductor should we ever mention resistance?
No - it’s always reactance.
When asked why graph doesn’t go through origin, what should we always try to be?
Specific in our answer and relate the systematic uncertainty to exact equipment used in experiment.
