Ordinary Level Notes Archives - Page 129 of 180 - Free ZIMSEC & Cambridge Revision Notes

Experiment: Demonstrating the effects of short-circuits and overloads

By garikaib|2025-02-12T09:06:51+02:00February 12th, 2025|Notes, O Level Science Notes, Ordinary Level Notes|

Demonstrating how fuses work ZIMSEC O Level Combined Science Notes: Experiment: Demonstrating the effects of short-circuits and overloads

Aim: To demonstrate the effect of a short circuit/overloading of a circuit on a fuse

Materials: 6 or 12 V battery, copper wires, fuse wire/steel wool strand, switch, car headlamp, torch bulb, switch, […]

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Metal and metal alloy properties and their construction uses

By garikaib|2025-02-12T09:21:53+02:00February 12th, 2025|Notes, O Level Science Notes, Ordinary Level Notes|

Metals are popular in construction. Image credit traveldigg.com ZIMSEC O Level Combined Science Notes: Metal and metal alloy properties and their construction uses

Metals are popular construction materials
They have properties that make them suited for making diverse structures
They are ductile which means […]

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Machines: The inclined plane
Gallery
Machines: The inclined plane

Notes, O Level Science Notes, Ordinary Level Notes

Machines: The inclined plane

By garikaib|2025-02-12T09:39:15+02:00February 12th, 2025|Notes, O Level Science Notes, Ordinary Level Notes|

ZIMSEC O Level Combined Science Notes: Machines: The inclined plane

Is also known as a ramp
is a flat supporting surface tilted at an angle,
with one end higher than the other,
used as an aid for raising or lowering a load
Inclined planes are widely used to move heavy loads over vertical obstacles
examples vary from a […]

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Hydraulic brakes

By garikaib|2025-02-12T09:10:35+02:00February 12th, 2025|Notes, O Level Science Notes, Ordinary Level Notes|

Car brakes. Image driverside.com ZIMSEC O Level Combined Science Notes: Hydraulic brakes

Is another example of hydraulic machines
Pressure is applied on the brake pedal using the car driver’s foot

Car brakes. Image credit dtzone.com […]

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Immunity and Immunisation

By garikaib|2025-02-12T09:28:55+02:00February 12th, 2025|Notes, O Level Science Notes, Ordinary Level Notes|

Sindiso Marume holding her brother’s health card. Image credit irinnews.org ZIMSEC O Level Combined Science Notes: Disease:Immunity and Immunisation

Immunity-is the ability of the body to resist diseases
There are various types of immunity:

Antigen-is any substance that causes […]

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Contraception: Abstinence

By garikaib|2025-02-12T09:46:09+02:00February 12th, 2025|Notes, O Level Science Notes, Ordinary Level Notes|

Couple holding hands. Image credit neguswhoread.com ZIMSEC O Level Combined Science Notes:Contraception: Abstinence

It involves total avoidance of sexual intercourse

Adavantages

Many couples agree to wait until marriage
There is no risk of contracting Sexually Transmitted Infections
It is 100% effective
It is supported by most religious […]

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Abraham Maslow’s Hierarchy of Needs

By garikaib|2025-02-12T09:16:40+02:00February 12th, 2025|Notes, O Level Business Studies Notes, Ordinary Level Notes|

Human beings are social animals. Image credit madamenoire.com ZIMSEC O Level Business Studies Notes: Abraham Maslow’s Hierarchy of Needs

In attempting to explain the concept of motivation Abraham Maslow came up with
The Hierarchy Of Needs

Maslow's hierarchy of [...]
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Non Financial Motivation: Job Enrichment

By garikaib|2025-02-12T09:35:33+02:00February 12th, 2025|Notes, O Level Business Studies Notes, Ordinary Level Notes|

Job enrichment is a non-financial method to motivate workers. Image credit unieducar.org.br ZIMSEC O Level Business Studies Notes: Non Financial Motivation: Job Enrichment

is a management concept that involves redesigning jobs so that they are more challenging to the […]

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Informal and Formal groups

By garikaib|2025-02-12T09:10:31+02:00February 12th, 2025|Notes, O Level Business Studies Notes, Ordinary Level Notes|

An informal group of friends. Image credit huffingtonpost.com

ZIMSEC O Level Business Studies Notes: Informal and Formal groups

Businesses are formal groups which are created to perform an economic activity and achieve set objectives which may include profit, growth, provision of essential services etc.
Informal groups can emerge within these […]

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