Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Magnetism and Electricity INV 1 I-Check Review -Magnets will push and pull each other even though a material is in between them (think about the desk with a magnet on each side and how you were able to move the one on top). -Opposite poles of magnets attract, so North attracts to South. South and South will repel and North and North will repel. Be prepared to tell which pole of the magnet is facing which if they are stacked on a pencil and explain (like poles with repel, unlike poles will attract). -When a steel or iron object touches a magnet, it becomes a temporary magnet. Only other iron or steel objects will then stick to that object. Think about your response sheetthe paper clip stuck to the iron nail because the nail was touching a magnet. If you tried to pick up the copper square from the test kit, it would not work. -You can test to see if an object is made of iron by testing the object with a magnet. You will know it is made of iron if it sticks to the magnet. -When iron filings come into contact with a magnet, the line up with the magnetic field (or force) of the magnet. -We used spacers in class to increase the distance between magnets in the cup and the magnet on the base. The force of attraction between the magnets weakens as the distance increases. -Magnets can be used to sort iron or steel objects from objects that are made of other metals, like aluminum. -An observation is something that you MUST witness or observe. It cannot be a guess or assumption. EXAMPLE: The object stuck to the filing cabinet. (observation) NON EXAMPLE: The object would break if it were freezing cold. (assumption)