Search Resources

Energy is defined as the ability to do work. Energy can be found in many things and can take different forms. For example, kinetic energy is the energy of motion, and potential energy is energy due to an object's position or structure. Energy is never lost, but it can be converted from one form to another.

Light and the electromagnetic radiation spectrum. Wave and particle-like behaviour, and how to calculate the wavelength or frequency of a light wave.

Video 1: The meaning of percent
Video 2: Meaning of 109%
Online activity 1: Percents
Video 3: Percents from fraction models 
Online activity 2: Percents from fraction models 

An overview of what physics is about as we delve deeper in future videos. How physics is related to math, the other sciences, and the world around us. 

These four short online lessons will cover the following:

• The planets of the solar system
• Planet orbits in the solar system
• Gravity in the solar system
• Inner vs outer planets

Kuagiza Nambari Hasi

Ordering negative numbers: Khan Academy video with the audio translated into Kiswahili.

Kubainisha asilimia ya kiasi na msingi

Identifying percent amount and base: Khan Academy video with the audio translated into Kiswahili. 

Kuelezea maana ya asilimia

Describing the meaning of precent: a Khan Academy video on percentages with the audio translated into Kiswahili

A discussion on how energy can't be created or destroyed in an isolated system, and works an example of how energy is transformed when a ball falls toward the Earth.

To lay the foundation for understanding what trigonometry is and how it works, do this next activity.