Archives: Lessons

Energy-Efficient Design Learning Objective In this lesson we will look at some ways that the design of an object or system can increase its energy efficiency. Learning Outcomes By the end of this lesson you will be able to: Explain what is meant by ‘energy-efficient design’. Describe some ways that friction can be reduced to … Read more

Conservation of Energy Learning Objective In this lesson we will look at how energy transfers and transformations relate to the law of conservation of energy. Learning Outcomes By the end of this lesson you will be able to: Describe the law of conservation of energy. Describe how energy transfers and transformations are not 100% efficient, … Read more

This is a certificate test lesson.

Energy Transformation Learning Objective In this lesson we will look at some of the main types of energy transformations involving mechanical energy, electrical energy, chemical energy and nuclear energy. Learning Outcomes By the end of this lesson you will be able to: Explain what is meant by ‘energy transformation’. Describe transformations between mechanical potential energy … Read more

Energy Transfer Learning Objective In this lesson we will look at how different types of kinetic energy are transferred. Learning Outcomes By the end of this lesson you will be able to: Explain what is meant by ‘energy transfer’. Describe how mechanical kinetic energy is transferred between objects. Describe how thermal energy is transferred by … Read more

Potential Energy Learning Objective In this lesson we will look at the main types of potential energy: gravitational potential, energy, elastic potential energy, electrical potential energy, chemical energy and nuclear energy. Learning Outcomes By the end of this lesson you will be able to: Define ‘potential energy’. Describe gravitational potential energy, with examples. Describe elastic … Read more

Kinetic Energy Learning Objective In this lesson we will look at the main types of kinetic energy: mechanical kinetic energy, thermal energy, radiant energy, sound energy and electrical kinetic energy. Learning Outcomes By the end of this lesson you will be able to: Define ‘kinetic energy’. Describe mechanical kinetic energy, with examples. Describe thermal energy … Read more

Introduction to Energy Learning Objective In this lesson we will learn what energy is and look at the two main categories of energy. We will also learn how energy can move between objects and be converted into different forms. Learning Outcomes By the end of this lesson you will be able to: Define ‘energy’. Name … Read more

The Water Cycle Learning Objective In this lesson we will learn how water moves through the hydrosphere via the water cycle and how this is affected by human activities. Learning Outcomes By the end of this lesson you will be able to: State where water can be found on Earth. Compare the abundance and distribution … Read more

Renewable and Non-Renewable Energy Learning Objective In this lesson we will discuss the major types of renewable and non-renewable energy used by humans. Learning Outcomes By the end of this lesson you will be able to: Distinguish between renewable and non-renewable sources of energy. Distinguish between primary and secondary sources of energy. Discuss the use … Read more

Non-Renewable Resources Learning Objective In this lesson we will learn about Earth’s main non-renewable resources – soil, rocks, minerals, metals and fossil fuels. Learning Outcomes By the end of this lesson you will be able to: Define ‘non-renewable resource’. Discuss how soil is a non-renewable resource. Discuss how rocks, minerals and metals are non-renewable resources. … Read more

Renewable Resources Learning Objective In this lesson we will learn about Earth’s main renewable resources – sunlight, water, air and living things. Learning Outcomes By the end of this lesson you will be able to: Define ‘renewable resource’. Discuss how sunlight is a renewable resource. Discuss how water is a renewable resource. Discuss how air … Read more

Earth’s Natural Resources Learning Objective In this lesson we will learn how Earth’s natural resources can be classified as renewable or non-renewable, depending on how long they take to replenish. Learning Outcomes By the end of this lesson you will be able to: Define ‘natural resource’. Differentiate between renewable and non-renewable resources, with examples. Describe … Read more

Tides Learning Objective In this lesson we will learn how gravitational forces exerted by the Moon and Sun create tides on Earth. Learning Outcomes By the end of this lesson you will be able to: Explain how gravitational force affects objects. Describe how Earth’s gravitational force affects the Moon and how the Moon’s gravitational force … Read more

Lunar and Solar Eclipses Learning Objective In this lesson we will learn how lunar and solar eclipses result from specific alignments of the Moon, Earth and Sun. Learning Outcomes By the end of this lesson you will be able to: Explain how the Moon’s orbital plane affects the alignment of the Moon, Earth and Sun. … Read more

Phases of the Moon Learning Objective In this lesson we will learn how the Moon’s appearance changes during its orbit around Earth and from different locations on Earth. Learning Outcomes By the end of this lesson you will be able to: Explain why we see varying amounts of the Moon during its orbit around Earth. … Read more

Solstices and Equinoxes Learning Objective In this lesson we will learn how solstices and equinoxes relate to specific points in Earth’s orbit around the sun. Learning Outcomes By the end of this lesson you will be able to: Describe what solstices are and explain how they relate to specific points in Earth’s orbit around the … Read more

Earth’s Tilt – Day Length and Seasons Learning Objective In this lesson we will learn how Earth’s tilt affects day and night lengths and how it causes the seasons. Learning Outcomes By the end of this lesson you will be able to: Describe Earth’s tilt. Explain how Earth’s tilt results in: Different day and night … Read more

Gears, Belt Drives and Chain Drives Learning Objective In this lesson we will learn how gears, belt drives and chain drives transfer forces and motion. Learning Outcomes By the end of this lesson you will be able to: Explain what is meant by ‘mechanical power transmission’. Describe gears, belt drives and chain drives and discuss … Read more

Wheels & Axles and Pulleys Learning Objective In this lesson we will learn how wheels and axles and pulleys provide mechanical advantage. Learning Outcomes By the end of this lesson you will be able to: Describe a wheel and axle and explain how it provides mechanical advantage. Discuss how a wheel and axle can be … Read more