Equations maths/science

• density= mass/volume
• Gravitational field strength= force per unit mass x distance squared
• Circumference of a circle= 2 x pi x radius squared
• Area of a circle= pi r squared
• Work done= force x displacement
• Surface area of a sphere= 4 x pi x r^2
• Energy stored in an elastic object = (1/2) * spring constant * extension^2
• Power= work done / time taken
• Pressure= force / surface area
• Force= mass x acceleration
• Volume of a cylinder= height x radius squared x 3.14