Magnetic Force Principles Flashcards
What happens when two unlike magnetic poles are brought together?
Unlike poles (North and South) attract each other.
What happens when two like magnetic poles are brought together?
Like poles (North-North or South-South) repel each other.
Give an example of magnetic force used for holding or fastening.
Refrigerator doors, stickers, and closures are everyday examples of magnetic holding and fastening.
How are magnets used for separation and sorting?
Magnets are used to distinguish magnetic materials from non-magnetic materials.
What everyday device uses magnetic principles for navigation?
Compasses use magnetic principles to indicate direction.
Name two examples of data storage devices that utilize magnetic principles.
Computer hard drives and debit/credit cards use magnetic principles for data storage.
How do Maglev trains use magnetic forces?
Maglev trains float above tracks using magnetic repulsion and utilize both attraction and repulsion to achieve high speeds.
What medical technology relies on strong magnetic fields?
MRI scanners are a medical technology that relies on strong magnetic fields.
Provide an example of a household appliance that uses magnets.
Hair dryers, mixers, grinders, fans, washing machines, and telephones are household appliances that use magnets.