WIP This page will be break down the snippets according to topics instead of a lump-sum like this.
- Displacement,
is the distance travelled in a specific direction - Speed,
is the distance travelled per unit time, the rate of change of distance - Velocity,
is the speed of an object in a specific dierction, the rate of change of displacement. - Acceleration,
is the rate of change in velocity with time
Equations
- Velocity
- Displacement
- Velocity
Inertia
Inertia is the tendency for an object to maintain its state of rest or of uniform motion in a straight line.
- Newton's First Law of motion (Law of Inertia) states that every object continues in its state of rest or of uniform speed in a straight line unless acted upon by external force.
- Principle of conservation of momentum states that the total momentum of a system is constant if no external force acts on the system.
- Newton's Second Law of motion
- Newton's Third Law of motion states that to every action there is an equal but opposite reaction.
- Impulse (change in momentum)
- Impulsive force (rate of change in momentum)
- A free falling object is an object falling under the force of gravity only, do not encounter air resistant/friction.
- Weight (N)
- Work is done when a force causes an object to move in the direction of the force.
- Energy is the capacity to do work.
- Potential energy is the energy stored in the object because of its position or its state.
- Kinetic energy is the energy possessed by an object due to its motion
- Principle of conservation of energy states that energy cannot be created or destroyed. It can be transformed from one form to another but the total energy in a system is constant.
- Power is the rate at which work is done or rate at which energy is transformed
- Engine is a device in which one form of energy is converted into another, usually mechanical energy
- Elasticity is the property of an object that enables it to return to its original shape and dimensions (size) after an applied external force is removed.
- Hook's Law states that the extension of a spring is directly proportional to the stretching force applied on it provided the elastic limit of the spring is not exceeded
- Elastic potential energy is the energy stored in a spring when it is extended or compressed.
- Pressure is the force acting normally on unit area of a surface
- Pressure in liquid
- The pressures at two points at the same level in the same liquid are equal
- Pascal's principle (the principle of the transmission of pressure in a liquid)
The pressure exerted on an enclosed liquid is transmitted equally throughout the liquid.
- Archimedes' Principle states an object whether completely or partially immersed in a fluid is acted on by a buoyant force, which is equal to the weight of the fluid displaced,
- Bernoulli's Principle states that in a steady flow of a fluid, the pressure of the fluid decreases when the velocity of the fluid increases
- The heat capacity of an object is the quantity of head energy required to increase its temperature by 1 degree celcius.
- The specific latent heat of fusion is the quantity of heat energy required to change 1KG of substance from solid to liquid without the change in temperature.
- Boyle's Law states that the pressure of a fixed mass of gas is inversely proportional to its volume (Temperature is kept constant)
- Pressure's Law (measure in Kelvin, K)
(with constant V)
- Charles' Law (measure in Kelvin, K)
(with constant P)