Honors Physics - Unit 3: Newton's Laws

Newton's first law aka the law of inertia
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Terms in this set (18)
Newton's first law aka the law of inertia
An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
Intertia
The tendency of an object to resist a change in motion
mass
the amount of matter in an object
force
A push or pull exerted on an object resulting from the object's interaction with another object (measured in N)
Equilibrium
an object with balanced forces in in equilibrium
static equilibrium
equilibrium at rest
dynamic equilibrium
equilibrium when an object is moving
the force of gravity
The only downward force acting on a free falling object is gravity and it causes objects to accelerate at a force of 9.86 m/s2
Weight
A measure of the force of gravity on an object
Weight vs. Mass
the weight is how much gravity pulls you down, and the mass is the amount of matter taking up space
Newton's Second LawForce equals mass times accelerationNet ForceThe combination of all forces acting on an objectfree body diagrama diagram showing all the forces acting on an objectForce due to gravityThe force experienced due to a gravitational field on an object with massForce due to Tensionpoints in direction of pulling (Ft)Normal Forcethe force perpendicular to a surface that prevents an object from falling through the surfaceForce due to frictionin the opposing motion of directionterminal velocitythe 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