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In this video we will be looking at how current relates to both resistance and potential difference, and how we record the potential difference and currents across different components to then calculate resistances. A potential difference is also known as a voltage. A potential difference, or voltage, is needed across an electrical component to make a current flow. Cells or batteries often provide this potential difference. CREDITS Animation & Design: Jean-Pierre Louw (behance.net/Jean-Pierre_Louw) Narration: Dale Bennett Script: Matthew Scholar (Sevenoaks School) SUBSCRIBE to the FuseSchool YouTube channel for many more educational videos. Our teachers and animators come together to make fun & easy-to-understand videos in Chemistry, Biology, Physics, Maths & ICT. VISIT us at www.fuseschool.org, where all of our videos are carefully organised into topics and specific orders, and to see what else we have on offer. Comment, like and share with other learners. You can both ask and answer questions, and teachers will get back to you. These videos can be used in a flipped classroom model or as a revision aid.

Resisting means to withstand something and that’s what electrical resistors and resistance in an electrical circuit does. In this video we’re going to learn about electrical resistance and resistors. An electric current is the flow of electric charge (composed of negative electrons) through a conductor. It is measured in coulombs per second also known as amps or amperes. The conductor is made of atoms joined in a metallic lattice of free electrons. As the current flows through the conductor, the electrons collide with the atoms. Energy is thus transferred for example to heat. This explains why a wire, with electricity flowing through it, often feels warm to the touch. CREDITS Animation & Design: Jean-Pierre Louw (behance.net/Jean-Pierre_Louw) Narration: Dale Bennett Script: Bethan Parry SUBSCRIBE to the FuseSchool YouTube channel for many more educational videos. Our teachers and animators come together to make fun & easy-to-understand videos in Chemistry, Biology, Physics, Maths & ICT. VISIT us at www.fuseschool.org, where all of our videos are carefully organised into topics and specific orders, and to see what else we have on offer. Comment, like and share with other learners. You can both ask and answer questions, and teachers will get back to you. These videos can be used in a flipped classroom model or as a revision aid.

In all changes - energy (measured in joules) does not get used up; energy is “CONSERVED”. However, energy becomes less and less useful ending up as environmental waste heat, so we always have to come back to an energy source for more. See what we mean in this video! CREDITS Animation & Design: Jean-Pierre Louw (behance.net/Jean-Pierre_Louw) Narration: Dale Bennett Script: Keith Ross SUBSCRIBE to the FuseSchool YouTube channel for many more educational videos. Our teachers and animators come together to make fun & easy-to-understand videos in Chemistry, Biology, Physics, Maths & ICT. VISIT us at www.fuseschool.org, where all of our videos are carefully organised into topics and specific orders, and to see what else we have on offer. Comment, like and share with other learners. You can both ask and answer questions, and teachers will get back to you. These videos can be used in a flipped classroom model or as a revision aid.