PAPER 1 EQUATIONS Flashcards
1
Q
(2) electrical energy transferred=
A
- power x time
- E=Pt
or - charge x potential difference
- E=QV
2
Q
(2) power=
A
- work done time/ time
- P=W/t
- energy transferred/ time
- P=E/t
3
Q
(2) electrical power=
A
- potential difference x current
- P=VI
- (current)² x resistance
- P=I²R
4
Q
gravitational potential energy=
A
- mass x gravitational field strength (g) x height
- Ep=mgh
5
Q
kinetic energy=
A
- 1/2 x mass x speed² or velocity²
- Ek=1/2 xm x v²
6
Q
density=
A
- mass/ volume
- p=m/v
7
Q
electrical charge=
A
- current x time
- Q= It
8
Q
potential difference=
A
- current x resistance
- V= IR
