25 terms

newton's toy box

STUDY
PLAY
force
push or full of an object
Newton's 1st law of motion
an object remains at rest, or moving in one direction unless acted upon by a force.
inertia
actual state of an object being at rest or in motion (ex: cruise control)
gravity
pull force on an object from the Earth (measured in Newtons)
support force
upward force that balances gravity (measured in Newtons)
freefall
an object falling in gravity
weight
strength of gravity force pulling an object (measured in grams)
mass
amount of matter in an object
Newton's 2nd law of motion
a greater force causes a greater acceleration AND a greater force is required to accelerate an object with more mass the same rate as an object with less mass
air resistance
force of air against a moving object ( works like support force)
parabola
possible path of an object falling in gravity (ex: throwing a ball)
microgravity
almost weightless condition observed by NASA while in orbit
speed
rate of motion
speed equation
S=D/T (distance over time)
potential energy
stored or unused energy (ex: battery)
gravitational potential energy
energy possessed by an object as it falls
acceleration
the rate of change in speed and/or direction
elastic potential energy
energy stored in a stretched object (ex: spring, rubber band)
conservation of energy
energy stays constant (nothing is lost or gained), only transfers
action force
a force exerted/put on by object A
reaction force
force exerted by object B that experienced the action force
Newton's 3rd law of motion
forces occur in equal but opposite pairs. If object A puts a force on object B, an equal but opposite force is exerted by 'B' on 'A'. (ex: bumper cars)
momentum
the strength of motion, determined by an object's mass and velocity
conservation of momentum
momentum is transferred from one object to another
velocity
the measure of speed and direction of an object's motion