SC.5.P.10.1 – Investigate and describe some basic forms of energy, including light, heat, sound, electrical, chemical, and mechanical.
SC.5.P.10.2 – Investigate and explain that energy has the ability to cause motion or create change.
SC.5.P.10.1 – Students will:
- investigate and describe some basic forms of energy, including light, heat (thermal), sound, electrical, chemical, and mechanical (energy of motion).
- review how light travels in a straight line until it strikes an object (opaque, translucent, transparent) and then is reflected/bounced, bent, or absorbed.
- review that things that give off light often also give off heat. o review that heat is produced when one object rubs against another (friction).
- review that sound is produced by vibrations and that pitch depends on how fast or slow an object vibrates.
- review that heat flows from a hot object to a cold object. o review common materials that conduct heat well or poorly.
- review that mechanical energy is stored at a position or released in motion.
- explain that electrical energy is the flow of a charge/current through a material.
- explain that chemical energy is stored or released in a chemical reaction (e.g., a source is from the foods animals eat).
SC.5.P.10.2 – Students will:
- identify and describe examples where energy has caused motion and/or created change (e.g., twirling pinwheel, boiling water, cooking food, turning on a lamp, freezing water, melting chocolate, plant/animal decay, vibration of a radio speaker).
- explain the relationship between energy, motion, and change.