Donate HereCategory: A-level mechanics
Pressure in liquids, density, viscosity, Bernoulli’s principle
Pressure in liquids This is the force exerted normally per unit area. The SI units of pressure of liquids are Nm-2 or Pascals (pa) The ... Read More
Kepler’s law of planetary motion and gravitational constant
Kepler’s Law of Planetary Motion Planets revolve in elliptical orbits having the sun at one focus Each planet revolve in such a way that the ... Read More
Simple harmonic motion
Simple harmonic motion It a special type of periodic motion in which the acceleration of the body along the path of the body is directed ... Read More
Surface tension
Surface tension Common observation explained by surface tension A drop of water, on closing a tap remained dinging on the tap, as if the water ... Read More
Circular motion,unbanked road, banked road, horizontal circular motion, vertical circular motion
Circular motion This is the motion of an object moving in a circular path with a uniform speed around a fixed point O. consider a ... Read More
Work, power, energy (A-level mechanic)
Work, power, energy - (A-level) Work is the product of force and distance moved. This distance must be in the direction of the force. Consider ... Read More
Friction, coefficient of friction-A level
Solid friction Friction is the forces that oppose the relative motion of two surfaces in contact. The direction of the friction force is opposite to ... Read More
Linear momentum
Linear momentum Linear momentum is a product of the body’s mass and its velocity. The S1 unit of momentum is kgms-1 When a force F ... Read More
Newton’s laws of motion
Newton’s laws of motion First Newton’s law of motion. A body remains in its state of rest or uniform motion in straight line unless an ... Read More
Scalar and vector quantities and resolving of forces
Scalar and vector quantities Scalar quantities are physical quantities which have only magnitude; for, example speed, mass, volume, energy, time and temperature. Vector quantities are ... Read More
Motion under gravity and projectiles
Motion under gravity In absence of any resistance, all bodies regardless of their mass fall with same acceleration near the earth’s surface. Acceleration due to ... Read More
Linear motion, equations of motion
Linear motion Terms used Displacement is the distance moved by a body in a specific direction Velocity is the rate of change of displacement Uniform ... Read More