physics Flashcards
(7 cards)
1
Q
What is the equation for power in electricity?
A
power=voltage x current (p=v x I)
2
Q
what is the equation for voltage
A
voltage=current x resistance (v=I x R)
3
Q
what is the equation for Efficiency
A
efficiency=(useful energy/total energy in) x 100
4
Q
What is the equation for gravitational potential energy (GPE)?
A
mass x gravity x height
5
Q
what is the equation for kinetic energy?
A
0.5 x mass x velocity x velocity
6
Q
what is the equation for work done?
A
force x distance
7
Q
what the equation for power in energy?
A
energy/time
