equations Flashcards
1
Q
force
A
work done
—————- = force
distance
2
Q
power
A
energy transferred (work done)
time
3
Q
efficiency
A
1.
useful output energy transfer
—————————————
total input energy transfer
2.
total power output
—————————
total power input
4
Q
current
A
power
voltage
5
Q
mass
A
weight
———————————— = mass
gravitational field strength
6
Q
extension
A
force applied to spring
spring constant
7
Q
wave length
A
wave speed
————– = wave length
frequency
