Paper 2 linking equations

Question 1

Power (P)
Energy Transferred (E)
Time (t)

Answer 1

Power = Energy Transferred / Time
P = E / t
Watts = Joules / Seconds

Question 2

Potential Difference (V)
Current (I)
Resistance (R)

Answer 2

Potential Difference = Current x Resistance
V = I x R
Volts = Amps x Ohms

Question 3

Energy (E)
Charge (Q)
Potential Difference (V)

Answer 3

Energy = Charge x Potential Difference
E = Q x V
Joules = Coulombs x Volts

Question 4

Power (P)
Current (I)
Resistance (R)

Answer 4

Power = Current² x Resistance
P = I² X r
Watts = Amps² x Ohms

Question 5

Force (F)
Spring Constant (k)
Extension (e)

Answer 5

Force = Spring Constant x Extension
F = k x e
Newtons = Newtons/Metre x Metres

Question 6

Force (F)
Spring Constant (k)
Extension (e)

Answer 6

F = k x e
Force = Spring Constant x Extension
Newtons = Kilograms/Seconds² x Metres

Question 7

Force (F)
Mass (m)
Acceleration (a)

Answer 7

Force = Mass x Acceleration
F = m x a
Newtons = Kilograms x metres/second²

Question 8

Work Done (W)
Force (F)
Distance (s)

Answer 8

Work Done = Force x Distance
W = F x s
Joules = Newtons x Metres

Question 9

Power (P)
Potential Difference (V)
Current (I)

Answer 9

Power = Potential Difference x Current
P = V x I
Watts = Volts x Amps

Question 10

Kinetic Energy (Ek)
Mass (m)
Velocity (v)

Answer 10

Kinetic Energy = 1/2 x Mass x Velocity²
Ek = 1/2 x m x v²
Joules = 1/2 x Kilograms x Metres/Second²

Question 11

Accelaration (a)
Velocity (v)
Time (t)

Answer 11

Acceleration = Final Velocity - Initial Velocity / Time
a = v - u / t
Metres/Second² = Change in Metres/Second / Seconds

Question 12

Momentum (p)
Mass (m)
Velocity (v)

Answer 12

Momentum = Mass x Velocity
p = m x v
Kilogram Metres/Second = Kilograms x Metres/Second

Question 13

Pressure (p)
Force (F)
Area (A)

Answer 13

Pressure = Force / Area
p = F / A
Pascal = Joules / Metres²

Question 14

Velocity (v)
Frequency (f)
Wavelength (λ)

Answer 14

Velocity = Frequency x Wavelength
v = f x λ
Metres/Second = Hertz x Metres

Question 15

Charge (Q)
Current (I)
Time (t)

Answer 15

Charge = Current x Time
Q = I x t
Coulombs = Amps x Seconds

Question 16

Density (p)
Mass (m)
Volume (V)

Answer 16

Density = Mass / Volume
p = m / V
Kilograms/Metres³ = Kilograms / Metres³

Question 17

Weight (W)
Mass (m)
Gravitational Field Strenght (g)

Answer 17

Weight = Mass x Gravitational Field Strength
W = m x g
Newtons = Kilograms x Newtons/Kilogram

Question 18

Distance (s)
Speed (v)
Time (t)

Answer 18

Distance = Speed x Time
s = v x t
Metres = Metres/Second x Seconds