Magnets
when magnets with different charges pull together
What is attract?
equal forces acting on an object in opposite directions
What are balanced forces?
an object in motion stays in motion, an object at rest stays at rest
Newton's first law
stored energy
potential energy
the amount of matter in an object
mass
when magnets with the same charges push eachother apart
What is repel?
a push or pull of an object
What is a force?
how an object moves from place to place
motion
energy of motion
change in velocity over time
acceleration
the invisible space where a magnet can exert its force on another object
What is magnetic field
forces that produce a nonzero net force which changes an objects motion
What are unbalanced forces?
F=MA
Newton's Second Law
energy at the top of a roller coaster
potential energy
friction
when you put two north poles together
What is repel?
the sum of all forces acting on an object
What is net force?
rate of motion
speed
energy when the roller coaster is going down the hill
kinetic energy
cm, m, km
when you put a south pole and a north pole together
What is attract?
If one person is pulling an object left with 50 N of force and another person is pulling right with 100 N of force, what is going to happen?
The object will move toward the right
for every action there is an equal and opposite reaction
Newton's third law
the speed of an object in a certain direction
velocity
name of the train that hovers above the track
maglev