Energy
the ability to do work
energy
push or pull
force
the change in position of an object.
motion
the line or course along which something moves.
direction
the exact location of an object.
position
energy of motion
kinetic energy
a force that attracts (pulls) all objects to the center of the Earth
gravity
a usually reversible change in the physical properties of a substance, as size or shape
physical change
the amount of force (pull) that gravity has on an object's mass.
weight
measures how fast an object is moving in a given amount of time.
speed
stored energy in a body or system due to its position.
potential energy
the overall force(s) acting on an object
net force
the changes in an object’s motion. This can be speeding up, slowing down or changing direction. An object’s acceleration depends on the object’s mass and the force applied.
acceleration
the higher the velocity and mass, the more momentum an object has.
momentum
the change in position of an object.
motion
flow of thermal (heat) energy between things that are touching.
conduction
does not cause a change in motion. Is equal in size and opposite in direction. Net force = ZERO
balanced force
remaining steady and unchanged
constant
the amount of matter (“stuff”) - in an object.
mass
the tendency for an object to keep doing what it is doing (resting or moving)
inertia
the transfer of energy by electromagnetic waves. The sun is Earth’s main source of electromagnetic waves.
radiation
always causes a change in motion. Is not equal and opposite. Net force is GREATER than zero.
unbalanced force
a usually irreversible chemical reaction involving the rearrangement of one or more substances and a change in their chemical properties, resulting in the formation of at least one new substance
chemical change
the acceleration of an object depends on its mass and the force used to move it
Newton's 2nd Laws
an object at rest will stay at rest and an object in motion will stay in motion until a force acts upon it.
Newton’s 1st Law of Motion: