Category: General
State Bernoulli’s principle.
For non- viscous incompressible fluid, flowing steadily, the sum of the pressure, kinetic energy and potential energy per unit volume is constant. Dr. Bbosa Science Read More
State the principle of conservation of linear momentum.
If the resultant force on a system of interacting bodies is zero; total linear momentum is conserved. Dr. Bbosa Science Read More
With examples, explain any two of Newton’s laws of motion.
1. A body continues in its state of rest or uniform motion in a straight line unless acted upon by an external force. For example, ... Read More
Algerian revolution of 1962– causes, success and cosequences
Background Algerian revolution refers to an armed conflict that took place from 1954 to 1962 that led to Algeria gaining independence from the French rule on ... Read More
Libya revolution of 1969 – causes, success and effects
Background Libya revolution of 1969 signifies the overthrow of King Idris who ruled Libya after the independence from British and French colonial rule in 1951. ... Read More
Zanzibar revolution of 1964 (causes, success and effects
Background After independence of Zanzibar in 1963 from the British, the Sultanate was dominated by the Arab minority, despite the African Majority population. This caused ... Read More
Causes and impacts of Tutsi invasion of Rwanda in 1990
Reasons for Tutsis invasion of Rwanda in 1990 The Tutsi invasion of Rwanda in 1990 was driven by several key factors: Refugee Status: Many Tutsis ... Read More
Causes and impacts of the Rwanda Revolution of 1959
Causes of the Rwanda Revolution of 1959 The Rwandan Revolution of 1959, also known as the Hutu Revolution or Social Revolution, was a period of ... Read More
The causes and impacts of the 1952 Egyptian revolution
Egypt was invaded and ruled by France between 1798 and 1801 with the aim of weakening the British rule to India. Then British formally occupied ... Read More
Factors that contributed to the success of revolutionary government in Egypt from 1952
The success of the revolutionary government in Egypt from 1952 can be attributed to several key factors: Strong Leadership: The revolution was led by capable ... Read More
Contributions of the Egyptian revolutionary government to growth of modern African Nationalism.
The Egyptian revolutionary government, particularly under the leadership of Gamal Abdel Nasser, made significant contributions to the growth of modern African nationalism. Support for Independence ... Read More
Factors for the rise of Gamal Abdel Nasser to power in Egypt
Nasser was born January 15, 1918, in Alexandria, Egypt and grew up in Al-Khatabah and later moved to Alexandria. He became interested in politics and ... Read More
Causes and consequences of Nationalization of Suez Canal in 1956
Factors that caused Nationalization of Suez Canal in 1956 The nationalization of the Suez Canal in 1956 by Egyptian President Gamal Abdel Nasser was driven ... Read More
The causes and consequences of the Suez Canal crisis of 1956
The Suez Crisis, also known as the Second Arab-Israeli War or the Tripartite Aggression, resulted in the nationalization of the Suez Canal by the Egyptian ... Read More
Explain why water flowing out of a small hole at the bottom of a wide tank results in a backward force on the tank.
When a fluid is flowing out of a small hole in a vessel, it acquires a large velocity and hence possesses large momentum. Since, no external force is acting on the system, a backward velocity ... Read More
What is elasticity?
Elasticity is ability of a deformed material body to return to its original shape and size when the forces causing the deformation are removed. Dr. Bbosa ... Read More
What is brittleness
A brittle material is a hard substance that breaks easily when a force is exerted on it e.g. glass Dr. Bbosa Science Read More
Account for the temperature dependency of surface tension.
Increase in temperatures increases the kinetic energy of liquid molecules and thus reduces the cohesive force and/or van der Waal forces among the molecules of ... Read More
Define the term surface tension and angle constant.
Surface tension is the force per metre length acting in the surface at right angles to one side of the line drawn in the surface. ... Read More
Explain the significance of the banked tracks.
It enables vehicles to navigate turns at higher speeds without skidding because, on banked track, a component of normal reaction supplements friction to provide the ... Read More
Describe the justification of the existence of molecules in gasses.
This can be explained be the Kinetic Molecular Theory: Particle Nature of Matter: This theory states that all matter is composed of small particles ... Read More
State Hooke’ law.
Hooke’s law states that the extension of a material is proportional to the stretching force provided the elastic limit is not exceeded. Dr. Bbosa Science Read More
A stone tied to a string is whirled in a horizontal circle. Explain the motion of the stone when the string breaks.
Before the String Breaks: The stone is kept in a circular path by the tension in the string, which provides the necessary centripetal force directed ... Read More
State the laws of friction.
Friction force opposes relative motion between surfaces in contact. Friction force is independent of area of contact provided normal reaction is constant. The friction force ... Read More
Define Instantaneous velocity.
It is the velocity of an object at a specific instant in time Dr. Bbosa Science Read More
What is acceleration
Acceleration is the rate of change of velocity. Dr. Bbosa Science Read More
Define a Newton
The newton is a force which gives amass of 1kg an acceleration of 1ms-2. Dr. Bbosa Science Read More
Define Vector and Scalar quantities
A scalar quantity is a physical quantity with magnitude but no direction A vector quantity is a physical quantity with both magnitude and direction Find ... Read More
Explain why in the experiment to determine the Young’s Modulus two identical wires are used
Identical wires are used to eliminate errors due to: (i) the yielding of the support when loads are added to the test wire, (ii) changes ... Read More
Post independence problems in Africa– Key points
Post-independence Africa faced a myriad of challenges that have shaped the continent's development. Here are some of the major issues: 1. Economic Instability: Dependence on ... Read More
Advantages and dsadvantages of military rule
Advantages of military rule Military rule, while often controversial and criticized for various reasons, is sometimes perceived to have certain advantages. Here are some of ... Read More
Cause and consequences of Malagasy uprising of 1947 – 1948
Madagascar became a French protectorate in 1882, and later a French colony in 1897. The French imposed their administrative, economic, and cultural systems on the ... Read More
Factors that prompted Morocco to fight for independence
Morocco became a French protectorate in 1912 following the Treaty of Fez. This treaty allowed France to control Morocco's administration, military, and foreign policy, while ... Read More
Role of Itriqlal in the liberation of Morocco
The Istiqlal Party (Independence Party) played a crucial role in Morocco's struggle for independence from French colonial rule: Formation: The Istiqlal Party was founded on ... Read More
Role of Sultan Mohamed V in the liberation of Morocco
Sultan Mohammed V played a pivotal role in the liberation of Morocco from French colonial rule: Symbol of National Unity: Sultan Mohammed V a national ... Read More
Factors that prompted Tunisia to fight for independence
Tunisia became a French protectorate in 1881 following the Treaty of Bardo. This arrangement allowed France to control Tunisia's foreign policy and defense while maintaining ... Read More
Role of political parties in the liberation of Tunisia
Political parties played a crucial role in Tunisia's liberation from French colonial rule: Young Tunisians: Formed in 1907, the Young Tunisians were a group of ... Read More
Factors that promoted /Reasons for Polisario war of independence
Western Sahara was a Spanish colony from 1884 until 1975. Spain claimed the territory as a protectorate and later combined separate districts to form the ... Read More
Effects of the POLISARIO war of independence in Western Sahara
The Polisario Front's war of independence had several significant effects on Western Sahara and its people: Humanitarian Impact: The conflict led to the displacement of ... Read More
Factors that led to liberation war in Guinea Bissau
Economic Exploitation: The Portuguese colonial administration exploited Angola's resources, particularly its agricultural and mineral wealth, often at the expense of the local population. Africans suffered ... Read More
Factors that caused a delay of independence for Guinea Bissau
Several factors contributed to the delay of independence for Mozambique: Rigid Colonial Rule: Portugal's Estado Novo regime, led by António de Oliveira Salazar and later ... Read More
Factors that favored growth of nationalism and attainment of independence in Guinea Bissau
Several factors contributed to the growth of nationalism and the attainment of independence in Guinea-Bissau: Charismatic Leadership: The founding of the African Party for the ... Read More
Contribution of PAIGC and Amicar Cabral to the liberation of Guinea Bissau
The African Party for the Independence of Guinea and Cape Verde (PAIGC) and its leader Amílcar Cabral played pivotal roles in the liberation of Guinea-Bissau: ... Read More
Nationalism in Mozambique– Key point son causes for the struggle, reasons for the delay, and contribution of FRELIMO
The voyage of Vasco da Gama in 1498 marked the arrival of the Portuguese, who began a gradual process of colonization and settlement in 1505. After ... Read More
The reasons for Angolan war of independence
The Angolan War of Independence was driven by several key factors: Economic Exploitation: The Portuguese colonial administration exploited Angola's resources, particularly its agricultural and mineral ... Read More
Factors that favored growth of nationalism and attainment of independence in Angola
Several factors contributed to the growth of nationalism and the attainment of independence in Angola: Economic Exploitation: The Portuguese colonial administration exploited Angola's resources, particularly ... Read More
Contribution of Popular Movement for the Liberation of Angola (MPLA) in the struggle for independence of Angola
The Popular Movement for the Liberation of Angola (MPLA) played a pivotal role in Angola's struggle for independence. Here are some key contributions: Formation and ... Read More
The role of Agostinho Neto in the struggle for independence of Angola
Agostinho Neto was the founding president of the Popular Movement for the Liberation of Angola (MPLA) and played a crucial role in the fight against ... Read More
Role of Kenneth David Kaunda in liberation of Zambia from colonialists
Kenneth David Kaunda, often referred to as KK, was a prominent Zambian politician and the first President of Zambia. Born on April 28, 1924, in ... Read More
Obstacles to the struggle for independence in Zambia
The struggle for independence in Zambia faced several significant obstacles: British Colonial Government: The colonial administration was resistant to granting independence and implemented policies to ... Read More
Role of Robert Mugabe in liberation of Zimbabwe from colonial rule
Robert Mugabe born in 1924 in peasant family of Zvimba tribe was trained as a teacher in a Roman Catholic mission school. He was introduced ... Read More
Factors that favored the independence of Zimbabwe
Several factors contributed to the growth of nationalism and the attainment of independence in Zimbabwe: The growth of nationalism and attainment of independence in Zimbabwe ... Read More
Obstacles to the struggle for independence in Zimbabwe
The struggle for independence in Zimbabwe faced several significant obstacles: Economic Exploitation: The colonial regime heavily exploited Zimbabwe's resources for the benefit of the colonizers, ... Read More
Role of Dr. Kamuzu Banda in liberation of Malawi from colonialists
Dr. Hastings Kamuzu Banda played a pivotal role in the liberation of Malawi from colonial rule. Here are some key aspects of his contributions: Education ... Read More
Factors that favored growth of nationalism and attainment of independence in Malawi
Malawi was colonized by the British in 1891, initially known as the British Central Africa Protectorate. In 1907, it was renamed Nyasaland. Malawi gained its ... Read More
Reasons for quick and peaceful independence of Tanganyika
Tanganyika achieved independence quickly and peacefully due to several key factors: Strong Leadership: Nyerere's leadership and vision were instrumental in uniting the people of Tanganyika ... Read More
Role of Julius Nyerere Kambarage in the achievement of independence for Tanganyika
Julius Kambarage Nyerere played a crucial role in the achievement of independence for Tanganyika. Here are some key aspects of his contributions: Leadership and Vision: ... Read More
Role of TANU in the struggle for independence of Tanzania
TANU was founded in 1954 by Julius Nyerere, who became its leader. The Tanganyika African National Union (TANU) played a pivotal role in the struggle ... Read More
The stages of Tanzania’s Independence in 1961
The journey to Tanzania's independence involved several key stages: Formation of Political Organizations: Early political organizations like the Bukoba Bahaya Union (1924) and the Kilimanjaro ... Read More
Factors that favored growth of nationalism and attainment of independence in Tanzania
Several factors contributed to the growth of nationalism and the attainment of independence in Tanzania: Early Movements and Political Awakening: In the early 20th century, ... Read More