The Force is with You
TAKS Objective Four TAKS Objective 4 – The student will demonstrate an understanding of motion, forces, and energy.
Associated TEKS 8.7The student knows that there is a relationship between force and motion. The student is expected to: A.demonstrate how unbalanced forces cause changes in the speed or direction of an object's motion.
Learning Objectives The learner will apply the laws of motion to real world examples. The learner will identify size and direction of a force. The learner will determine if motion is constant or accelerated.
Learning Objectives The learner will use equipment to measure time and distance so that the motion of the object can be determined. The learner will used data collected to calculate the speed of an object. The learner will explain the results of applying a force to an object.
Students will use Hover Pucks® to produce near frictionless motion.
Students will use A digital camera to capture movies and play back using stop frame motion to facilitate measurements.
Students will study One dimensional and two dimensional motion.
Important Concepts Motion is often misunderstood. Consider one-dimensional motion: Give the Hover Puck® a shove. The motion of the puck will continue with a constant speed and motion until another force is applied. Remember in an ideal world without friction motion is constant. (Newton’s First Law)
Important Concepts Consider two-dimensional motion: Throwing a football through the air produces two entirely independent motions. A horizontal motion that follows Newton’s First Law. A vertical motion due to the force of gravity pulling the ball back to Earth. This is an acceleration motion. It is acted upon by the constant force of gravity and follows Newton’s Second Law (F = ma).
Two-D Motion Is also called projectile motion.
Definitions Velocity – the speed and direction of an object. Acceleration – a change in either the speed or the direction of an object. Force – a push or pull Work – force acting upon an object multiplied by the distance the object moves.