Send the link below via email or IMCopy
Present to your audienceStart remote presentation
- Invited audience members will follow you as you navigate and present
- People invited to a presentation do not need a Prezi account
- This link expires 10 minutes after you close the presentation
- A maximum of 30 users can follow your presentation
- Learn more about this feature in our knowledge base article
Do you really want to delete this prezi?
Neither you, nor the coeditors you shared it with will be able to recover it again.
Make your likes visible on Facebook?
You can change this under Settings & Account at any time.
Transcript of Magnetic Energy
- Some magnets are man-made.
-Magnets that are made in the laboratory have a mixture of iron, nickel, cobalt and other elements. They can also be a mixture of iron, boron and neodymium. What is a magnet? - A piece of metal that has the ability to attract nickel, iron, cobalt and other certain types of metal. It also repels or attract other magnets.
- It can produce a magnetic field. Magnetic fields are invisible but serve a magnet's notable property: a force that pulls in ferromagnetic materials in other words metals that are attracted to magnets or form permanent magnets.
- There are two types of magnets; permanent magnets and electromagnets.
- Electromagnets are made from wrapping a copper wire around iron and running electricity through it. The magnetic field disappears when the current is turned off.
- A permanent magnet is an object made from a material that is magnetized and creates its own persistent magnetic field. What does a magnet do? - Scientists use four basic ways to categorize magnets, based on how their magnetic force is used;
- Category 1: A magnet's attraction and repelling force.
- Category 2: The ability to convert electrical energy to mechanical energy.
- Category 3: The ability to convert electrical energy to mechanical energy.
- Category 4: The magnet’s ability to affect ion beams. How do we use magnets in our daily life - We use refrigerator magnets every time we want to stick something on the refrigerator
- Motors use batteries to help make it move.
- Windmills move by wind and making the copper wire coil rub against a magnet causing electrical charges
- Watermills turn by the water turning and just like windmills rubs the copper coil against a magnet causing electrical charges.
- An electrical toothbrush uses batteries to make the brush move
- Inside generators are two permanent magnets that are facing each other's poles and the repelling force makes the fan move.
- Magnets are also in electric bells. MAGNETIC ENERGY Table of contents ~ what is a magnet?
~ Where does it come from?
~ What does a magnet do?
~ How do we use magnets in our daily life? Hope you enjoyed my presentation!!!!! :) By: Hannah Le