Another simplified, visual introduction that will appeal to young, reluctant readers; 32 pages for ages 8–14. The series encourages inquiry-based learning, problem-solving, and critical thinking through engaging demonstrations and real-world applications. PHYSICS OF TENNIS. 69% average accuracy. The spin is primarily sidespin here with a small topspin component. Newton's First Law. Newton's three laws of motion. Force and Motion DRAFT. The use of these circular motion equations were introduced in the first section of Lesson 1 and then subsequently applied to the analysis of the motion of roller coaster cars. An equal and opposite force applied to her trunk powers her swing. HANDS-ON SCIENCE Tennis Heats Up! The second law of motion states that “the rate of change of momentum of an object is proportional to the applied unbalanced force in the direction of the force.” The momentum (represented as p) of an object is defined as the product of its mass (represented as m) and velocity (represented as v). 1. Forces and Motion: Investigating a Car Crash by Ian Graham. The law of inertia relates to the sport of cycling due to the fact that the cyclist is in constant motion when on the cycle. 4th - 6th grade. Almost everybody, at some point in their lives, has bounced a rubber ball against the wall or floor and observed its motion. The force of friction from the court on the ball will always depend on the type of surface the ball is bouncing on. Photo: Isaac Newton—the man who put science in motion. Newton's first law of motion states, "An object at rest stays at rest and an object in motion stays in motion, unless acted on by an external force." The ball is traveling into the page toward the net. The series encourages inquiry-based learning, problem-solving, and critical thinking through engaging demonstrations and real-world applications. Newton’s first law states that an object in motion tends to stay in motion, and an object at rest tends to stay at rest, unless acted upon by an unbalanced force. Tennis Physics: Anatomy of a Serve No. lkdavis. Because there is an additional downward force on the ball, tennis players can hit the ball with a greater speed and have it land in the court, if they apply topspin to the ball when hitting it. Another example would be is hitting the ball with your racket. 5. PHYSICS OF TENNIS. Bouncing ball physics is an interesting subject of analysis, demonstrating several interesting dynamics principles related to acceleration, momentum, and energy.