Electromagnets
What is an electromagnet?
A magnet that works only when hooked up to electricity.
What are the two ends of a magnet called?
The North Pole and the South Pole.
What is magnetic force?
The push or pull between two magnets or between a magnet and some metals.
Can magnets attract wood or plastic?
NO
: What does force mean?
To draw or pull toward an object.
True or False: An electromagnet can work without electricity.
False
Which poles attract each other?
Which poles attract each other?
Does magnetic force work when magnets are touching?
No, it works even when magnets are not touching (acts from a distance).
Name at least two objects that magnets can attract.
Paper clips, nails, keys, or coins made of iron or steel.
Is force a push, a pull, or both?
Both
Name one thing that might use an electromagnet.
A crane that lifts cars, a doorbell, or a motor.
What happens when you bring two North Poles of magnets close?
They repel (push away) each other.
Name one metal that magnets can pull on.
Iron (or steel).
Why do magnets attract these objects?
Because these objects have metals like iron or steel that magnets can pull on.
Give an example of a force you use every day.
Examples: Pushing a door open, pulling a toy, or lifting a book.