This video covers: - The difference between hydroelectric dams and tidal barrages - How they work and generate electricity - The pros and cons of each General info: - Suitable for all GCSE and IGCSE courses Exam board specific info: AQA...

This video covers: - Brief summary of what transformers do (i.e. step up or step down the voltage) - How transformers work Exam board specific info: AQA - Separate/triple science and higher tier only IGCSE Edexcel - Separate/triple...

This video covers: - What a surge is and how it can cause harm - How safety features can protect us from that harm - In particular: fuses, circuit breakers, earth wires and insulation

No, being inside a car doesn’t guarantee 100% protection against a lightning strike. Rubber is a great insulator, but it can’t stand against one of the most powerful forces in nature. A bolt of lightning contains a colossal amount of...

In this video we cover: - What wind and solar power are - Where they're used - Their pros and cons General info: - Suitable for all GCSE and IGCSE courses Exam board specific info: AQA - Everything is relevant to your course! IGCSE...

This video covers: - The different colours of visible light - How light is used is optical fibres - The concept of fluorescence with ultraviolet radiation - How ultraviolet radiation can be used in security General info: - Suitable for...

This video covers: - What mains supply is - The roles and colours of the live, neutral and earth wires - Why plugs can give you an electric shock General info: - Suitable for all GCSE and IGCSE courses - Suitable for higher and...

This video covers: - What parallel circuits are - How potential difference, current and resistance are split in a parallel circuit. General info: - Suitable for all GCSE and IGCSE courses - Suitable for higher and foundation tiers -...

This video covers: - How electricity is formed and send across the country - Why we need to a low current and high voltage for electricity transmission - What step-up and step-down transformers do General info: - Suitable for all GCSE...

This video covers: - The symbols of all the main components you need to know - What LEDs are - The graphs and uses of LDRs and thermistors General info: - Suitable for all GCSE and IGCSE courses - Suitable for higher and foundation tiers...

This video covers: - The difference between alternating current and direct current - Voltage-time graphs - Oscilloscopes General info: - Suitable for all GCSE and IGCSE courses - Suitable for higher and foundation tiers - Suitable for...

The video "Evaluating Solar Energy” explores solar energy, including its benefits and limitations.

Dr. Forrester talks about thermal energy. She defines thermodynamics and talks about conduction, convection, and radiation. She also defines photovoltaic energy. She talks about solar power and then shows how to make a solar oven.

Dr. Forrester defines kinetic energy and discusses the effects that mass and speed have on kinetic energy. She also explains how kinetic energy can change into other types of energy.

Dr. Forrester identifies the forms of energy used to power electricity by examining solar power, wind power, and hydroelectric power. She also discusses the benefits of using alternative, renewable resources of energy by listing ways to...

Dr. Forrester identifies the changes that have occurred over time with electricity by describing how electricity has changed the way we live. She explains how electricity has become safer by researching inventions over the centuries.

Dr. Forrester defines electromagnetism and magnet by identifying the relationship between electricity and magnets and how they come from the same force.

Dr. Forrester discovers the history of electromagnetism by researching Hans Christian Oersted.

Dr. Forrester examines the discovery of electricity by creating a timeline. She also shares information about Thomas Edison and his invention of the light bulb.

Dr. Forrester defines the terms conductor, resistor, and insulators by relating them to electrical charges. She also performs an experiment and labels objects as conductors or insulators.

Dr. Forrester defines static electricity by conducting a simple experiment using a balloon. She also identifies the two types of electricity by describing static electricity and current electricity.

Dr. Forrester defines the terms current, electricity, and static electricity by recognizing that electricity is a physical science that is important in daily life. She also compares and contrasts the properties of current electricity and...

Dr. Forrester defines the terms: atoms, protons, electrons, and neutrons. She explains that atoms are made up of protons, electrons and neutrons. She also teaches that all electricity comes from the electrically charged particles.

Dr. Forrester compares and contrasts the positive and negative effects of technology by recognizing such outcomes as inventions, efficiency, pollution, and replacement of jobs with robots.