Static Electricity
When an object has this type of charge, it is because extra electrons have been added.
What is a negative charge?
These are the two regions found on every magnet where magnetic force is strongest.
What are the north pole and south pole?
This is defined as a push or a pull.
What is a force?
This law explains why objects resist changes in their motion.
What is Newton’s First Law?
This is what all waves transfer from place to place.
What is energy?
This is what happens when two objects with the same type of electric charge are brought close together.
What is repulsion?
This occurs when the north pole of one magnet is placed near the south pole of another magnet.
What is attraction?
This type of force situation causes an object’s motion to change.
What is an unbalanced force?
This quantity determines how much inertia an object has.
What is mass?
This type of wave requires a medium and moves using compressions and rarefactions.
What is a longitudinal wave (or sound wave) (or mechanical wave)?
This charging method involves rubbing two objects together to transfer electrons.
What is charging by friction?
This is what happens when a bar magnet is broken into two pieces.
What is that each piece becomes its own magnet with two poles?
This force opposes motion between two surfaces that are touching (or rubbing together).
What is friction?
This describes what happens to acceleration when force increases and mass stays the same. (F=ma)
What is that acceleration increases?
This wave property determines how loud a sound is.
What is its amplitude?
This process explains why a charged balloon can stick to a neutral wall without touching it first.
What is induction?
This explains why a magnet attracts an object more strongly when it is closer than when it is farther away.
What is that magnetic force decreases with distance?
This explains why an object does not move when equal forces act on it from opposite directions.
What are balanced forces (or zero net force)?
This law explains how a person walks forward by pushing backward on the ground.
What is Newton’s Third Law?
This happens to wavelength when frequency increases.
What is that wavelength decreases?
This conclusion can be made when two charged objects push away from each other.
What is that they have the same type of charge?
This invisible region around a magnet explains why it can affect objects without touching them.
What is a magnetic field?
This property explains why an object can continue moving even after a push stops.
What is inertia?
This is why action and reaction forces do not cancel each other out.
What is that they act on different objects? (force does NOT equal motion)
This explains why light can travel through empty space but sound cannot.
What is that light is an electromagnetic wave (and sound requires a medium)?