Newton's Laws of Motion
Terms in this set (14)
Sir Issac Newton
A British scientist who defined the laws of motion and universal gravitational. He also created the measurement called Newtons(N).
Unit of force
Newton's 1st Law of Motion
An object at rest will remain at rest unless acted upon by an unbalanced force; an object moving at a constant velocity will remain in the same motion unless acted upon by an unbalanced force.
Examples of Newton's 1st Law of Motion
A soccer ball will not move until a player kicks it.
A bowling ball hits the pins sending the pins flying for a STRIKE!
slamming on the brakes stops the car but a body keeps moving forward
a book sitting on the desk is not going to move on its own
The tendency of a body to maintain is state of rest or uniform motion unless acted upon by an external force.
Inertia depends on
Newton's 2nd Law of Motion
"law of acceleration"; acceleration of an object depends directly on the amount of force applied to it and inversely with repsect to the objects mass
Newton's 2nd Law Equation
F=ma, A= F/M
Newton's 2nd Law of Motion Examples
A boy can throw a football farther than his friend because he uses more force.
12 lb bowling ball goes faster down the lane than a 15 lb bowling ball.
More force is required to push a full cart than to push an empty cart because the empty cart has less mass.
Units for mass
Grams(g), kilograms (kg)
Units for Acceleration
Meters per seconds squared (m/s²)
Newton's 3rd Law of Motion
For every action there is an equal and opposite reaction
All forces act in pairs
Newton's 3rd law of motion
Newton's 3rd Law of Motion Examples
A fireman turns on his hose & is knocked backwards
If air is let out of a balloon quickly, air pushes down & balloon goes up
High jumper pushes down on the ground and the ground pushes the high jumper up in the air