PHYSICS
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TOPIC 4: THERMIONIC EMISSION | PHYSICS FORM 4
Thermionic Emission
Thermionic emission is the discharge of electrons from heated materials, widely used as a source of electrons in conventional electron tubes (e.g., television...
TOPIC 3: RADIOACTIVITY | PHYSICS FORM 4
he Nucleus of an Atom
The Structure of the Nucleus of an Atom
Describe the structure of the nucleus of an atom
The word atom is derived...
TOPIC 2: ELECTROMAGNETISM | PHYSICS FORM 4
Magnetic Fields due to a Current-carrying Conductor
How Electric Current Produce a Magnetic Field
Explain how electric current produces a magnetic field
Electromagnetism is the effect produced...
TOPIC 1: WAVES | PHYSICS FORM 4
Introduction to Waves
The Concept of Wave
Explain the concept of a wave
A wave is a disturbance that travels through a medium from one location to...
TOPIC 9: THERMAL CURRENT ELECTRICITY | PHYSICS FORM 3
Electromotive force (emf) and potential difference (pd)
The Concept of Electromotive Force (emf) and Potential Difference (PD)
Explain the concept of electromotive force (emf) and potential...
TOPIC 8: VAPOUR AND HUMIDITY | PHYSICS FORM 3
Vapour
The Process of Evaporation of Liquid
Explain the process of evaporation of liquid
Vapours
These are molecules which escape into the atmosphere after liquids are heated.
...
TOPIC TOPIC 7: MEASUREMENT OF THERMAL ENERGY | PHYSICS FORM 3
Heat Capacity
Heat capacity is the amount of heat required to raise the temperature of an object or substance by one degree. The temperature change is the difference...
TOPIC 6: TRANSFER OF THERMAL ENERGY | PHYSICS FORM 3
Conduction
The Concept of Conduction of Heat
Explain the concept of conduction of Heat
Conduction
is the transfer of heat energy through solids, for example, metals.
Generally solid substances...
TOPIC 5: THERMAL EXPANSION | PHYSICS FORM 3
Thermal Energy
The Concept of Heat
Explain the concept of heat
Heat – Is the transfer of energy due to temperature differences.
Temperature – Is the degree of...
TOPIC 4: OPTICAL INSTRUMENT | PHYSICS FORM 3
Simple Microscope
The Structure of the Simple Microscope
Describe the structure of the simple microscope
A magnifying glass, an ordinary double convex lens with a short focal...
