Definitions
An object that attracts iron and other materials that have magnetic qualities similar to iron
What is a magnet?
What are the two poles of a magnet called?
What is the north and south pole?
T/F: Positively and negatively charged objects repel each other
What is false?
What everyday kitchen appliance uses permanent magnets to hold notes and pictures on its metal surface?
What is a refrigerator?
Where the force of a magnet applies is strongest
What is magnetic pole?
What happens when two north poles of magnets are pushed together?
What is they repel each other?
What is a material that allows electric charges to move freely through it?
What is a conductor?
What medical imaging device uses powerful magnets to create detailed pictures of the inside of a patient's body?
What is a MRI?
If you break a magnet in half, what happens?
What is each piece becomes a new magnet with its own north and south poles?
Do objects with the same type of charge attract or repel each other?
What is repel each other?
What natural phenomenon occurs when electric charge builds up in clouds and is discharged to the ground?
What is lightning?
An object has an unbalanced amount of positive or negative charge
What is electrically charged?
What do the lines drawn around a magnet represent?
What is the direction and strength of the magnetic field
T/F: The more charges on an object, the stronger the electric field or force
What is true?
What science demonstration device makes your hair stand on end by building up a large electric charge?
What is a Van de Graaff generator?
When charged particles transfer between 2 conductors by touching
What is conduction
What causes Earth to have a magnetic field?
What is the movement of molten iron in Earth's outer core (or electric currents in the core)?
When you touch a doorknob and get shocked, you are experiencing a transfer of charge. What is this process called?
What is static discharge/electricty?
A magnetar is a type of neutron star with an incredibly powerful magnetic field—about a trillion times stronger than Earth's. If a magnetar passed near Earth, what would happen?
What is the extreme magnetic field would destroy all electronics, disrupt Earth's magnetic field, cause massive power outages, and potentially strip away Earth's atmosphere. Fortunately, magnetars are extremely rare and very far away.