A temporary magnet made when electric current flows though a wire wrapped around an iron object.
electromagnet
100
If a circuit is closed is electricity passing through?
Yes, that means all wires and batteries are connected.
100
Name some materials that are attracted to magnets.
Paper clips, fridge, paper fastener, other magnets, anything containing iron, etc.
100
Describe how a compass is affected when it is near a magnet.
The needles of the compass are either attracted to the magnet or repel the magnet. It causes the needles to spin around as the magnet gets closer.
200
Force that attracts certain metals
magnetism
200
Name the parts of a simple electric circuit
battery, wire, switch, bulb
200
Each magnet has two poles, what directions are they seeking?
Each magnet has a north seeking pole and a south seeking pole.
200
We created an electromagnet by wrapping a wire around a nail and hooking it up to batteries. What two factors made the electromagnet stronger? (able to pick up more paper clips)
Adding more batteries and increasing the number times we wrapped the wire around the nail.
300
Material through which electric current passes easily
Conductor, examples: paper clip, wire, paper fastener, etc.
300
What is the purpose of the rubber covering on wires?
To insulate the wire and prevent people from burning themselves if the wire gets hot!
300
Describe a permanent magnet.
A permanent magnet is a material that always exhibits a magnetic field.
300
What is morse code?
A system of communication by which dots and dashes represent numbers and letters.
400
Material through which electricity does not pass easily
insulator (plastic, rubber)
400
If a circuit is not working, what things would you check in order to fix it?
Make sure all wires are connected first, then make sure batteries are working.
400
Describe a temporary magnet.
A temporary magnet is a magnet that exhibits magnetic properties only for a short time, usually while they are in the magnetic field of a permanent magnet.