Equations - Paper 1 Flashcards by Mr Kent | Brainscape

Flashcards in Equations - Paper 1 Deck (17)

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1

Charge?

Current x time

Q = I t

2

Potential difference?

Current x resistance

V = I R

3

Electrical Power (In terms of potential difference and current)?

Potential difference x current

P = V I

4

Power (in terms of current and resistance)?

(Current²) x resistance

P = I²R

5

power (in terms of energy and time) ?

Energy transferred / time

P = E/t

6

Energy transferred (in terms of charges and potential difference)?

Charge x potential difference

E = Q V

7

Density?

Mass / volume

d = m/v

8

Period?

1 / frequency

9

Boyle's Law?
(this is on the formula sheet)

pV = constant
(this is on the formula sheet)

10

Work done?

Force x distance moved

W = F D

11

Resistance?

Potential difference / Current

R = V/I

12

Efficiency?

Useful energy / Energy put in x100

E= useful/input x100

13

Kinetic energy?

1/2 x Mass x Speed²

Ek=1/2mv²

14

Gravitational potential energy?

Mass x Gravitational field strength x Height

Ep=mgh

15

Elastic potential energy?

(this is on the formula sheet)

1/2 x Spring constant x Extension²

Ee=1/2ke²

(this is on the formula sheet)

16

Specific heat capacity?

(this is on the formula sheet)

Energy / mass x temperature change

c = E / m x temp.

(this is on the formula sheet)

17

Specific latent heat?

(this is on the formula sheet)

Energy / mass

l = E / m

(this is on the formula sheet)