## BREAK NEWS

• A-level physics

### Moment of a force

• A-level physics

### State Archimedes’ principle.

• A-level physics

### Explain why velocity of a liquid at a wide part of a tube is less than that at a narrow part.

• A-level physics

• General

# Category: 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