Class Response

Sir Isaac Newton is one of the most well known scientists known in today's time. His work was about 300 years ago, but his theories are still correct and used throughout life now. Just driving in a car is using one of Newton's laws. Isaac Newton has 3 laws of motion; 1. "Every object persists in its state or rest or uniform motion in a straight line unless its compelled to change that state by forces impressed on it", 2. " Force is equal to the change in momentum(mv) per change in time. For a constant mass, force equals mass times acceleration' F(force)=M(mass) X A(acceleration)", 3. For every action, there is an equal and opposite reaction." Isaac Newton was so smart, when he was only 23, he already had theories of gravitation! In science class, we are making roller coasters out of simple items, like paper tubes. The marble, when rolling down the coaster, is applied to law 1. The marble is moving in a straight line down the coaster until a hill comes up and exerts a force upon the marble, which slows it down. My opinion on this topic is very shocked. I am amazed that from 300 years ago a theory is still in place. People even tried to disprove Newton's laws, but failed. I give kudos to Sir Isaac Newton and hope is Laws Of Motion stay in place for the rest of time on Earth.


http://www.grc.nasa.gov/WWW/K-12/airplane/newton.html