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Newton's Laws Vocabulary
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Gravity
Terms in this set (20)
Newton's 1st Law of Motion (Law of Inertia)
An object in motion stays in motion, and an object at rest stays at rest, unless acted upon by an unbalanced force.
Newton's 2nd Law of Motion (Force and Acceleration)
The greater the mass, the greater the force needed to accelerate the object. (Force = Mass x Acceleration)
Newton's 3rd Law of Motion (Action/Reaction)
For every action, there is an equal and opposite reaction.
Inertia
The tendency of an object to resist a change in motion. The greater the mass, the more inertia.
Gravity
The force exerted on objects that tend to pull the objects down toward the center of the Earth.
Friction
The force placed on a moving object opposite its direction of motion, and this causes a resistance to movement. Usually produces heat.
Force
Any action that can change or cause motion. A force is any push or pull. Usually measured in Newtons (N). Forces can be represented with arrows called Vectors. Vectors show the direction and magnitude of a force.
Formula: Force = Mass x Acceleration (f=ma).
Net Force
The sum of all the forces, with a direction. An object will move in the direction of the net (unbalanced) force.
Acceleration
The rate of change of velocity of with time. In other words, A change in speed and/or direction of an object's motion. Can be positive (speeding up), or negative (slowing down).
Mass
The amount of matter that an object has, usually measured in grams (g) or kilograms (kg).
Motion
The action or process of moving or being moved (movement of an object or body); a change in position.
Speed
The distance traveled by an object in a given amount of time. Speed is distance traveled in a certain time.
Formula: Speed = Distance/Time (s=d/t).
Distance
The total path length traveled from one point or location to another.
Velocity
The measurement of the rate and direction of change in the position of an object. Velocity is a quantity that measures speed and gives direction.
Formula: Speed + Direction.
Newton
A unit of force, usually expressed in Joules.
Unbalanced Force
When the net force on an object does not equal zero. Unbalanced forces change the speed or direction of an object's motion.
Work
Something done as a result of effort or exertion.
Formula: Work = Force x Distance (w=fd)
Weight
The effect of gravity on an object's mass.
Formula: Weight = Mass x Gravity.
Momentum
The product of the mass of an object and its velocity.
Displacement
The distance between two locations measured along the shortest path connecting them, in a specified location (the shortest distance between two points).
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