click below
click below
Normal Size Small Size show me how
3rd grade Science -
Question | Answer |
---|---|
A __________ is created when a magnetic metal is rubbed or stroked with a permanent magnet, resulting in the transfer of atoms. These magnets do not keep their magnetism for a very long time, it will eventually wear off. | temporary magnet |
When a magnet's force pulls the object towards it | Attracting |
When magnets with like poles meet, push away from each other | Repel |
Commercially created magnets, usually made from iron and other metals, which retain their magnetism for long periods of time | Permanent Magnets |
Steel, iron, cobalt and nickel are _________. They are attracted to magnets | Magnetic Metals |
Aluminum, brass and copper are ____________. They are not attracted to metals. | Nonmagnetic Metals |
An object that attracts, or pulls, certain metals, mainly iron and steel. | Magnet |
The attraction (pull) or repulsion (push) of a magnet is ... | magnetic force |
A magnet has both a north and south ______ and its pull is stronger at the ends. | Pole |
The area around a magnet where the force of a magnet can act. | Magnetic Field |
A magnet is strongest at .... | ends or poles |
The ________and ___________ of a magnet does not determine its strength. | Size/shape |
No matter how many times you break a magnet in half, it will still have a __________ and _________ pole. | North/South |
Name 3 uses for magnets | 1. Computers 2. Compass 3. Medical equipment |
A magnet will _________a paper clip, but will not ________ a penny. | Attract/Attract |
Describe how you can create a temporary magnet. | A temporary magnet is created when a magnetic metal is rubbed with a permanent magnet. |
North attract/repel to South | Attract |
South attract/repel to South | Repel |
North attract/repel to North | Repel |
South attract/repel to North | Attract |