Sir Isaac Newton was was born in England in 1642 and is considered one of the greatest scientists and mathematicians that ever lived. He lived for 85 years. In college, he had strong ideas about motion and broke them down into three laws which I will explain in simple terms below. Law 1: An object at rest remains at rest unless acted on by an unbalanced force. An object in motion continues in motion with the same speed and in the same direction unless acted upon by an unbalanced force.