February 2025

Arch bridges

By |2025-02-12T09:30:24+02:00February 12th, 2025|Notes, O Level Science Notes, Ordinary Level Notes|

An arch bridge An arch bridge ZIMSEC O Level Combined Science Notes: Arch bridges

  • In an arch bridge the arch acts to support a load by converting the downward force into sideways thrust
  • Arches can make structures last longer for example old buildings and structures in European countries have lasted as […]
Read More
Comments Off on Arch bridges

Pumps: Force pump

By |2025-02-12T09:04:42+02:00February 12th, 2025|Notes, O Level Science Notes, Ordinary Level Notes|

A solar force pump. Image credit sunfuel.co.in A solar force pump. Image credit sunfuel.co.in ZIMSEC O Level Combined Science Notes: Pumps: Force pump

  • A force pump:
  • Has a cylinder, piston, two valves and a spout (outlet)
  • It makes use of atmospheric pressure to force fluid/water into the pump through valves
  • The […]
Read More
Comments Off on Pumps: Force pump

Substance abuse: Alcohol

By |2025-02-12T09:23:13+02:00February 12th, 2025|Notes, O Level Science Notes, Ordinary Level Notes|

Glasses of wine. Image credit pickywallpapers.com Glasses of wine. Image credit pickywallpapers.com ZIMSEC O Level Combined Science Notes: Substance Abuse: Alcohol

  • Alcohol is a legal and socially acceptable drug
  • It is however a poison
  • It is addictive and can lead to ill-health and even death
  • It is a depressant drug
  • It […]
Read More
Comments Off on Substance abuse: Alcohol

Injection (Depo Provera)

By |2025-02-12T09:40:01+02:00February 12th, 2025|Notes, O Level Science Notes, Ordinary Level Notes|

Image credit star.ng Image credit star.ng ZIMSEC O Level Combined Science Notes:Contraception:Injection (Depo Provera)

  • Also simply known as Depo
  • It is an injection containing medroxyprogesterone, a contraceptive injection for women that contains the hormone progestin

How it works Depo provera Depo provera injection

  • Prevents the […]
Read More
Comments Off on Injection (Depo Provera)

Functional organisation structure

By |2025-02-12T09:45:46+02:00February 12th, 2025|Notes, O Level Business Studies Notes, Ordinary Level Notes|

Functional organisational structure Functional organisational structure

ZIMSEC O Level Business Studies Notes: Functional organisation structure

  • This is the traditional form of organisational structure
  • The organisation’s tasks and operations are divided into groups/departments based on organisational functions/function areas
  • Examples of such functions include marketing, finance, human resources, production/operations and IT (Information Technology)

    • […]

Read More
Comments Off on Functional organisation structure

The Grape Vine: Informal vs Formal Communication

By |2025-02-12T09:27:33+02:00February 12th, 2025|Notes, O Level Business Studies Notes, Ordinary Level Notes|

The grape vine gives it’s name to the informal communication process. Image credit cliparts.co

ZIMSEC O Level Business Studies Notes:The Grape Vine: Informal vs Formal Communication

  • Communication can also be classified as either informal or formal
  • Formal communication is official, arranged and approved of by the relevant authorities in the organisation

    • […]

Read More
Comments Off on The Grape Vine: Informal vs Formal Communication

The development and effects of trade

By |2025-02-12T09:01:24+02:00February 12th, 2025|Notes, O Level History Notes, Ordinary Level Notes|

ZIMSEC O Level History Notes: Early Societies (Late Stone Age – Early Iron Age): The development and effects of trade

  • The use of iron tools meant high degree and skill in the Early Iron Age and Late Iron Age
  • This led to the development of trade both internally with locals and […]
Read More
Comments Off on The development and effects of trade

Crisis in Nguniland: Introduction

By |2025-02-12T09:15:38+02:00February 12th, 2025|Notes, O Level History Notes, Ordinary Level Notes|

A Zulu regiment in a film. Image credit pininterest.com

ZIMSEC O Level History Notes: Crisis in Nguniland: Introduction

  • The group of Bantu speaking people who lived in the Southern-Eastern region of Southern Africa were called the Nguni
  • Nguniland was divided into three groups namely, the Zulu or Northern Kingdom, Xhosa and the […]
Read More
Comments Off on Crisis in Nguniland: Introduction
Toggle Sliding Bar Area
Go to Top