Chapter 11 Flashcards
Inertia
The tendency of an object to resist being moved or, if the object is moving, to resist a change in speed or direction until an outside force acts on the object.
Newton’s first law of motion
An object at rest stays at rest and an object in motion maintains its velocity unless it experiences an unbalanced force.
Newton’s second law
The unbalanced force acting on an object equals the objects mass times it’s acceleration.
Free fall
Moving in a downward motion due to only the force of gravity.
Terminal velocity
The highest velocity an object can handle through a fluid.
Projectile motion
When an object is thrown and moves in a curve.
Law of universal weightlessness
A low gravity environment causes this. For instance the floor of a space shuttle doesn’t push on an astronaut.
Newton’s third law of motion
For every action force there is an equal and opposite reaction force.
Action force
One object exerting a force on another object.
Reaction force
The other object pushing back on the action force.
Law of universal gravitation
All objects in the universe attract each other through a gravitational force.
Weight
The force on an object due to gravity.
