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Newton's Laws of Motion matching challenge
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Terms in this set (26)
Action Force
A force exerted on an object.
Acceleration
The rate of change in velocity.
Air Resistance
The force of air pushing against a moving object.
Conservation of Energy
The amount of energy in a closed system remains constant over time.
Conservation of Momentum
For two objects subject only to their mutual interactions, the total momentum of the objects remains constant in time (momentum = mass X velocity). This is equivalent to Newton's third law of motion.
Elastic Potential Energy
The term used to describe the energy in a stored compressed or streched object (usually a spring or rubber band).
Energy
The ability to do work (or to produce change).
Force
A Push or a pull.
Friction
A resistance force opposing motion.
Gravitational Potential Energy
The energy possessed by an object that can fall.
Gravity
The force of attraction between masses.
Freefall
The condition of an object falling in a gravitational field.
Kinetic Energy
The energy possessed by an object because of its motion.
Mass
The amount of matter an object contains.
Inertia
The property by which an object tends to reamain at rest or in uniform straight-line motion.
Momentum
The product of an object's mass multiplied by its velocity. Momentum is a conserved quantity within a closed system.
Newton's First Law of Motion
An object will remain at rest or in uniform motion unless acted on by an unbalanced external force.
Newton's Second Law of Motion
(Force =Mass X Acceleration). A greater unbalanced force causes a greater acceleration of an object in the direction of the force. A greater unbalanced external force is required to accelerate an object with more mass at the same rate as an object with less mass.
Newton's Third Law of Motion
For every action there is an equal and opposite reaction.
Microgravity
Almost weightless condition; only very small forces remain. This is the term used by NASA to discribe the in-orbit enviroment.
Potential Energy
The energy required to place an object in a position. This energy is stored in the object untill the object untill the object moves.
Parabola
One possible path of an object falling freely in a gravity field. A tossed ball follows a parabolic arc.
Reaction Force
The force exerted by an object experencing an action force. The reaction force is equal to the action force, but in the opposite direction.
Velocity
A measure of the speed and direction of an object's motion.
Weight
The strength of the gravity force pulling down on an object.
Speed
The distance travled by an object diveded by the time required to cover the distance.
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