Required Equations For Yr10 Mock

Question 1

What is the equation that links Kinetic Energy, Mass and Speed

Answer 1

Eᵏ = 1/2 x m x v²

Or

Kinetic Energy (J) = 1/2 x Mass (Kg) x Speed (m/s)

Question 2

What is the equation that links Elastic Potential Energy, Spring Constant and Extension

Answer 2

Eᵉ = 1/2 x k x e²

or

Elastic Potential Energy (J) = 1/2 x Spring Constant (N/m) x Extension (m)

Question 3

What is the equation that links Gravitational Potential Energy, Mass, Gravitational Field Strength and Height

Answer 3

Eᵖ = m x g x h

or

Gravitational Potential Energy (J) = Mass (kg) x Gravitational Field Strength (N/kg) x Height

Question 4

What is the equation that links Energy, Mass, Specific Heat Capacity and Temperature Change

Answer 4

ΔE = m x c x Δθ

or

Energy (J) = Mass (kg) x Specific Heat Capacity (J/kg) and Temperature Change (°C)

Question 5

What is the equation that links Power, Energy and Time

Answer 5

P = E/t

or

Power (W) = Energy (J) / Time (Secs)

Question 6

What is the equation that links Energy, Mass and Specific Latent Heat

Answer 6

E = m x L

or

Energy (J) = Mass (Kg) x Specific Latent Heat (J/Kg)

Question 7

What is the equation that links Power, Work Done and Time

Answer 7

P = W / t

or

Power (W) = Work Done (J) x Time (Secs)

Question 8

What is the equation to calculate Efficiency for Energy

Answer 8

Efficiency = Useful Output Energy / Total Input Energy

Question 9

What is the equation to calculate Efficiency for Power

Answer 9

Efficiency = Useful Output Power / Total Input Power

Question 10

What is the equation that links Charge Flow, Current and Time

Answer 10

Q = I x t

or

Charge Flow (C) = Current (A) x Time (S)

Question 11

What is the equation that links Potential Difference, Current and Resistance

Answer 11

V = I x R

or

Potential Difference (V) = Current (A) x Resistance (Ω)

Question 12

What is the equation that links Power, Potential Difference and Current

Answer 12

P = V x I

or

Power (W) = Potential Difference (V) x Current (A)

Question 13

What is the equation that links Force, Spring Constant and Extension

Answer 13

F = k x e

or

Force (N) = Spring Constant (N/Kg) x Extension (m)

Question 14

What is the equation that links Power, Current and Resistance

Answer 14

P = I² x R

or

Power (W) = Current ² (A) x Resistance (Ω)

Question 15

What is the equation that links Energy, Charge Flow, and Potential Difference

Answer 15

E = Q x V

or

Energy (J) = Charge Flow (C) x Potential Difference (V)

Question 16

What is the equation that links Density, Mass and Volume

Answer 16

ρ = m / v

or

Density (Kg/m³) = Mass (Kg) / Volume (M³)

Question 17

What is the equation that links Weight, Mass and Gravitational Field Strength

Answer 17

W = m x g

or

Weight (N) = Mass (Kg) x Gravitational Field Strength (N/Kg)

Question 18

What is the equation that links Work Done, Force and Distance

Answer 18

W = F x s

or

Work Done (J) = Force (N) x Distance (m)

Question 19

What is the equation that links Energy, Power and Time

Answer 19

E = P x t

or

Energy (J) = Power (W) x Time (s)