All types of matter are a result of changes in the arrangement, motion, and combination of atoms. Motions and Forces Changes in forces applied to an object in motion will change the speed or direction of that object. The relationship of force, mass, and acceleration can be represented mathematically. In most chemical and nuclear reactions, energy is transferred into or out of a system. Electrical circuits provide a means of transferring electrical energy when heat, light, sound, and chemical changes are produced.
Energy comes to the earth in the form of electromagnetic radiation.
Heat, light, and sound have a variety of properties. These grade level performance standards are listed developmentally. However, each school is uniquely organized.