Motor effect - When a current-carrying wire in a magnetic field experiences a force., Poles - The ends of a magnet, where the magnetic field is strongest. Poles can be north or south., Attraction - When forces pull objects towards each other. The objects attract each other., Repulsion - When forces push objects away from each other. The objects repel each other., Magnetic field - The area around a magnet where a force may be felt., Solenoid - A coil of wire with many turns., Electromagnet - A magnet formed by an electrical current. An electromagnet can be switched on and off., Iron core - A piece of iron that is placed inside a solenoid. It is used to increase the strength of an electromagnet., Compass - A device with a magnetised needle. The needle turns to line up with a magnetic field., Conductor - A material which allows an electrical current to pass through it easily. It has a low resistance.,

Electromagnets

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