Equations Flashcards
1
Q
How to work out number of electrons
A
Number of electron = total charge(Q) /charge of electrons
2
Q
How do your work out work done (J) equation (1)
A
Work done (J)= charge (Q) * voltage (V)
3
Q
How do you work out current(A)
A
Current (A) = charge (Q)/ time(s)
4
Q
How do you work out resistance
A
resistance/R(Ω)= voltage/V(V) / current/I(A)
5
Q
Equation for speed
A
V(speed)=x(distance)/ t(time)
6
Q
Equation for velocity
A
V(velocity = s(displacement)/t(time)
7
Q
equation for work done (2)
A
Work done (J)= force (N)m x distance (M)
8
Q
How do you work out force
A
Force(N) = mass(kg) x acceleration(m/s^2)
9
Q
Equation for pressure
A
P=F/A Pressure = force perpendicular to the area/ Area
