In this experiment, you will make an electromagnet Then you will test how changing two variables can affect its strength Safety: Electromagnets can get
Experiment: Can you make your electromagnet stronger by changing the number of coils? Between each trial, disconnect the wire from the battery
Turning coils around and passing a current through them will make a much stronger electromagnet This is the magnetic field around a single loop of wire; there
Changes in each of these pieces of the electromagnet will influence the overall strength of the magnet The more powerful the source of electricity,
way magnets (usually weak) and electromagnets can combine to make little magnetic fields add together, creating a stronger magnetic field
MAKE AN ELECTROMAGNET THAT WILL ATTRACT A METAL OBJECT A coil of wire, or solenoid, produces a stronger magnetic field than a straight length of wire
A temporary magnet must have some other force acting on it (usually electricity) in order to be magnetic o What two ways can you make an electromagnet stronger
You can make a more powerful magnet by making a solenoid or an electromagnet With a Solenoid A coil of wire that carries an electric current, and therefore
affect how strong an electromagnet might be? (Amount of Ask, Do you think that this could be done using an Where is the electromagnet the strongest? 2
Give one reason why an electromagnet would be used rather than a permanent magnet there is a description of how the electromagnet is made and there is a the further the distance from which paperclips can be attracted the stronger
way magnets (usually weak) and electromagnets can combine to make powerful and little magnetic fields add together, creating a stronger magnetic field
Keep the chart accessible so that you and the students can enter ideas, new pole, the regions where the magnetic force created by the magnet is strongest