Chapter 11 Flashcards
Inertia
The tendency of an object to resist being moved or, if the object is moving, to edits a change in speed or direction
Newtons First Law of motion
An object at rest remains a test and an object in motion maintains its velocity unless it experiences a unbalanced force.
Newton’s second law of motion
The unbalanced force acting on an object equals the objects mass times it acceleration.
Free fall
The motion of a body when only the force of gravity is acting on the body
Terminal velocity
The constant velocity of a falling object
Projectile motion
Curved path an object follows when thrown, launched or projected near earths surface.
Law of universal gravitation
observations on gravity
F=Gm1*m2/d2
Weight
Gravitational force an object experiences based on its mass
Apparent weightlessness
Astronauts when in space appear to be floating because the floor of the shuttle doesn’t push against the astronauts
Newton’s third law of motion
For every action force there is an equal and opposite action force
Action force
Force exerted on the ball by your foot
Reaction force
Force exerted on your foot by the ball