Notes Archives - Page 6 of 189 - Free ZIMSEC & Cambridge Revision Notes

Experiment: Comparing the strength of natural timber and other construction materials

By garikaib|2025-02-12T09:25:11+02:00February 12th, 2025|Notes, O Level Science Notes, Ordinary Level Notes|

Comparing the strength of various materials ZIMSEC O Level Combined Science Notes: Experiment: Comparing the strength of natural timber and other construction materials

Aim: To compare the strength of some natural timbers and other materials

Materials: Plywood, hard wood cut across the grain, soft wood cut along the grain, […]

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Experiment:Lifting weights using pulleys

By garikaib|2025-02-12T09:43:02+02:00February 12th, 2025|Notes, O Level Science Notes, Ordinary Level Notes|

Testing pulleys using a test meter ZIMSEC O Level Combined Science Notes: Experiment:Lifting weights using pulleys

Aim: To use pulleys to lift loads

Materials: 4 single pulleys, string, 1kg mass/a tin filled with sand, spring balance, clamp stand, meter rule

Method

Set up a fixed pulley as shown above

[…]

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People and Energy

By garikaib|2025-02-12T09:15:19+02:00February 12th, 2025|Notes, O Level Science Notes, Ordinary Level Notes|

Construction workers require a lot of energy. Image credit nehandaradio.com ZIMSEC O Level Combined Science Notes: Experiment: People and Energy

While it is true that everyone needs energy for metabolism and daily activities
Different people have different food needs
Food requirements can […]

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Male Reproductive system

By garikaib|2025-02-12T09:32:17+02:00February 12th, 2025|Notes, O Level Science Notes, Ordinary Level Notes|

Image credit raanetwork.org ZIMSEC O Level Combined Science Notes: Male Reproductive system

The diagram below shows the reproductive system of a man

Male reproductive system. Image credit goldiesroom.org

Testes-this is where sperms are made.

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Population Dynamics

By garikaib|2025-02-12T08:59:06+02:00February 12th, 2025|Notes, O Level Science Notes, Ordinary Level Notes|

Image credit idealscounseling.org

Image credit idealscounseling.orgZIMSEC O Level Combined Science Notes: Population Dynamics

Population-all the inhabitants of a particular place/area at one given time
The study of changes in population is known as demograph

Factors affecting population change

The birth rate-the number of live births per 1000 people per year.
Death/Mortality rate-is the number of […]

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Uses of Herzberg’s Theory

By garikaib|2025-02-12T09:19:29+02:00February 12th, 2025|Notes, O Level Business Studies Notes, Ordinary Level Notes|

Tobacco graders working in a group. Image credit flickr.com ZIMSEC O Level Business Studies Notes: Uses of Herzberg’s Theory

The theory led/has led to the standardisation of:
working conditions e.g working hours which have become more fixed
These working conditions have also […]

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Organisational Charts

By garikaib|2025-02-12T09:33:44+02:00February 12th, 2025|Notes, O Level Business Studies Notes, Ordinary Level Notes|

A simple organisational chart.

ZIMSEC O Level Business Studies Notes: Organisational Charts

It is a diagram that shows the organisation structure of a given organisation
It is also defined as a pictorial depiction of an organisation’s structure
An organisation’s structure is also known as it’s internal structure

[…]

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Democratic Leadership style

By garikaib|2025-02-12T09:12:55+02:00February 12th, 2025|Notes, O Level Business Studies Notes, Ordinary Level Notes|

Democracy means rule by the people. Image credit kalamu.com

ZIMSEC O Level Business Studies Notes: Democratic Leadership style

Is also known as participative leadership
Under this style the members of the team contribute to the decision making process
The leader asks for contribution from team members during the process of […]

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Religious Organization of the Mutapa State

By Karen Mukungurutse|2025-02-12T09:45:29+02:00February 12th, 2025|Notes, O Level History Notes, Ordinary Level Notes|

Some people still practice the African Religion of the Mutapa state.

ZIMSEC O Level History Notes: The Mutapa Kingdom:Religious Organization of the Mutapa State

The Munhumutapa was the supreme leader and the religious leader of the Mutapa people.
He had the ultimate religious powers.
Evidence from oral tradition argues that the Munhumutapa […]

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