ch2 forces and motion Flashcards
1
Q
terminal velocity
A
the constant velocity of a falling object when the force of air resistance is equal in magnitude and opposite in direction to the force of gravity.
2
Q
free fall
A
the motion of a body when only the force of gravity is acting on the body.
3
Q
projectile motion
A
the curved path that an object follows when thrown, launched, or otherwise projected near the surface of earth.
4
Q
inertia
A
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.
5
Q
momentum
A
a quantity defined as the product of the mass and velocity of an object.
