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Level 48

Newtons Laws & Work, Power & Ma


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interia
the property of matter by which it retains its state of restor its velocity along a straight line so long as it is not actedupon by an external force.
mass
a body of coherent matter, usually of indefinite shape and often of considerable size
forces
Something that does work or causes a change
acceleration
(physics) a rate of change of velocity
gravity
(physics) the force of attraction between all masses in the universe
momentum
(p) vector quantity describing the quantity of motion or inertia in motion. Recognizes that both mass and velocity have a part in the motion of an object and is proportional to both (is zero …
reaction
A response to a stimulus.
Simple Machine
A machine that does work with only one movement.
work
a force acting upon an object to cause a displacement. (key words: force, displacement, and cause)
Power
(physics) the rate of doing work
Potential Energy
(mass) x (g) x (height)
kinetic energy
a running dog
Newton's first law
An object at rest remain and an object in motion remains in motion UNLESS it experiences an unbalanced force. Also called the Law of Inertia.
Mechanical Advantage
The amount of effort put in to a machine divided by the total force the machine provides