Equations Flashcards
1
Q
What is the equation for weight?
A
W=mg
(W=weight, g=gravitational potential energy, m=mass)
2
Q
What is Hooke’s Law (equation)? (Give units)
A
F=ke
F=force(N)
k=spring constant(N/m)
e=extension(m)
3
Q
Equation for Work Done
A
W=Fd
3
Q
What is the equation for Gravitational Potential energy?
A
GPE=mass x gravitational field strength x height
4
Q
What is the equation for kinetic energy?
A
KE=1/2mv^2
5
Q
What is the equation for elastic potential energy?
A
EPE=1/2ke^2
6
Q
What is the equation for power?
A
P=Energy transferred/time
OR
P=work done/time
7
Q
What is meant by the spring constant and what is its unit?
A
The spring constant is the amount of force required to increase the extension of the spring up to the elastic limit.
Its unit is N/m
