Chapter 11 lesson 2
Newtons first law of motion
A physical law stating that and object at rest tends to stay at rest and an object moving in a straight line at a constent speed tends ot continue moving that way. EXAMPLE.. A ball resting in the aisle of a bus that is moving at a constant velocity when the driver steps on the brakes the bus slows down and the ball rolls torward the bus driver.
Newtons second law of motion
A physical law that states that an objects accleration depends on the objects mass and amount of net force applied to it. EXAMPLE.. A baseball pitcher threw a fast ball to you, then the pitcher threw a tennis ball at exactly the same speed would it be easier to catch than the baseball?
Newtons law of universal gravitation
A physical law starting that the planets the stars and the sun all exert gravitational forces.