U3 phys newtons laws
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12 Terms
what are vectors
vectors have magnitude and direction
what are scalars
have magnitude but no direction
what are accelerometers give examples
measures acceleration of an object an example is devices you wear on your wrist also used to measure BP
what are newtons first laws of motion
when there is no resultant force acting on a body
what meant by mass
amount of matter in an object
what is weight
is a force a pull of gravity on an object
what is inertia
mass of an object
what is static friction
a limiting friction
what is dynamic friction
moving along a surface
what is newtons second law of motion
force acting on a moving object is the product of mass and acceleration
what is newtons 3rd law of motion
2 objects interact and they apply forces to each other of equal magnitude and opposite
what is resultant force
sum of forces