Aim: To learn and describe what static electricity, attraction and repulsion mean. Keywords: Static: A build-up of electricity due to the lack of a conductor for the energy to flow through Repulsion: The property that causes two objects with the same type of charge to repel or push each other away. Attraction: The property that causes two objects with different charges to attract or pull each other together. Proton: A positively charged particle. Electron: A negatively charged particle. Neutron: A neutrally charged particle. Focus Question: Why do we get electric shocks? Electric shocks are caused when we transfer a large amount of either positive or negative energy onto an object with the opposite type of energy. When two objects are rubbed or pulled apart, some of energy comes off leaving one object with an excess of one type of charge and excess of the other object with the opposite energy. If the energy has nowhere to go via a conductor, then it will build up, creating ‘static.’ This is the energy that is transferred when we get electric shocks. This lesson we learnt about static electricity, repulsion, attraction and their properties. We used the website to investigate this. This diagram shows two objects with differently charged particles, also The object on the left is positively charged and the object on the left is negatively charged. We can see that their difference in charge is causing them to pull or ‘attract’ each other. This property is known as attraction. Here are a couple of pictures from the website. The first picture shows differently charged particals and how they react to one another. The second image shows how repulsion between two positively charged objectives. Lesson Summary
Learnt about the three different charges; positive (protons,) negative (electrons) and neutral (neutrons) Learnt about the interactions between objects with the same and different charges; repulsion and attraction. Learnt why we get electric shocks and why electricity becomes static.
0 Comments
|
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |