Quiz Science questions

This quiz has questions about what you know in physics and beyond.

Help :
v=volts or speed
i=amps
r=ohms
p=watts
w=wavelength
f=hertz
v=ir (for voltage)
i=v/r (for current)
r=v/i (for resistance)
p=iv (for power)
i=p/v (for current)
v=p/i (for voltage)
r1+r2+r3 (Series circuit)
1/r1+1/r2+1/r3 (parallel circuit)
v=f(w)
f=v/w
w=f/v
y=mx+b