Definitions 1
a push or pull on an object
Force
the speed and direction of an object
velocity
Skateboarding down the street
push
Newtons first law
Inertia
During action and reaction, same sized objects will accelerate the_____
same
changing the location of an object from one place to an other
the change of speed and direction over time
acceleration
playing tug- a- war
pull
During action and reaction, the small object will accelerate more or less
more
During action and reaction, the large object will accelerate more or less
less
a force that slows down an object when it rubs against another object
friction
Heavier objects have more______
inertia
playing on the see saw
both
Newtons Second law
acceleration
A moving object will keep moving at the same ______ forever without friction to stop it.
Speed
the natural force that pulls objects towards the earth
gravity
Who invented the three laws of motion
Isaac Newton
vacuuming
both
Before acceleration, an object has _______, which keeps an object steady, whether the object us at rest or in motion. To get an object to change its motion, we apply_____
inertia, force
Friction; makes moving objects ____ ____ or _____.
(example:; going over gravel)
slow down, stop
an objects resistance to any change in motion (Newton's first law)
Inertia
In what decade was Isaac Newton a scientist?
the 1600's
dunking a basketball
push
Newtons third law
action and reaction
Fill in the blanks: Objects in motion will keep moving at the same _______ and in the same _______ unless a ______ changes their motion.
speed, direction, force