Magnetism
What are the two ends that are on a magnet called?
North and South Pole
What are the three possible charges an object can have?
What is the largest example of a magnet that you can think of?
The Earth
As magnets with their north end pointed at each other get closer, does their magnetic force increase or decrease?
Increase
Does an electromagnet have a magnetic field?
Yes
What poles do you need to bring together to create an attraction of magnetic forces?
North and South/Opposites
What are fans powered by?
Electricity
What type of materials can be magnets?
Metal Only
Decrease
As I increase the charge of an electromagnet, what will happen to the magnitude (strength) of the force?
It will increase
What poles do you need to bring together to create a repulsion force?
North and North or South and South/Same Poles
What are materials that cannot carry electricity called?
Insulators
What common kitchen appliance uses magnets to cook food?
Microwave
Does the length of time rubbing a balloon with a wool cloth increase or decrease the distance it takes to attract a piece of yarn?
Increase! The more time I rubbed the balloon, the stronger the electric force
How does the number of loops of a wire affect the strength of a electromagnet?
It is proportional, it will increase it!
What happens to a compass when you bring a magnet near it?
The compass will follow the magnet
What are materials that can carry electricity well called?
What is the strongest type of magnet?
Neodymium
What can I use to visualize how far away a magnet can reach, how far away it will be magnetic?
Magnetic field lines
What device do I need, which is run by an electromagnet, if my electricity goes out?
A generator
What inside of the Earth causes it to have a magnetic field?
The core, the iron inside the Earth
Electricity travels at the speed of light, what is the speed of light in miles per hour? (Closest answer wins)
186,000 miles per hour
How do key cards work at hotel to get into hotel rooms?
Using magnets! A reader in the door measures how the magnets are responding, whether they attract or repel.
If I bring two electromagnets closer to one another, is the force between going to get stronger or weaker?
Stronger
What device, which is used for scanning internal organs and we saw a the Michigan Science Center, creates a magnetic field 60,000 times stronger than that of the Earth?
MRI Machine