Equations for paper 1 Flashcards
1
Q
How do you work out weight?
A
weight=mass*gravitational field strength
2
Q
How do you work out work done?
A
work done=force*distance
3
Q
How do you out the equation for pressure?
A
pressure=force normal to a surface/ area of that surface
4
Q
How to work out the kinetic energy?
A
kinetic energy=0.5massspeed^2
5
Q
How to work out gravitational potential energy?
A
gpe=massgravitational field strengthheight
6
Q
How do you work out power?
A
power=energy transfer/time
power=work done/time
power=current^2*resistance
7
Q
How do you work out charge flow?
A
charge flow=current*time
8
Q
How do you work out potential difference?
A
V=Current*resistance
9
Q
How do you work out energy transfer?
A
E=power*time
E=charge flow*potential difference
10
Q
How do you work out efficiency?
A
=useful energy/total energy
