ENERGY & MOTION UNIT (Forms of Energy, Light & Heat)
Light Student Expectation The student is expected to demonstrate that light travels in a straight line until it strikes an object or travels from one medium to another; and that light can be reflected, refracted, and absorbed.
Light travels in straight lines until reflected or refracted by another object.
Light is reflected when it bounces off objects such as mirrors or other shiny surfaces. The image we see in a reflection is a flipped image from the original.
Light refracts or bends, when passing from one medium to another, such as from air into water. A refracted image is a distorted or changed image from the original.. Light is absorbed when it strikes a surface; darker colors absorb more light.
How does light energy travel?
How can the path of light be changed?
What do you observe when the path of light changes?
How does light react to different surfaces?
Forms of Energy
What Students need to know and understand about Forms of Energy
Forms of Energy Student Expectation The student is expected to identify basic forms of energy such as light, heat, sound, electrical, and mechanical; and recognize that energy has the ability to cause motion or create change.
Light, heat, sound, electrical, and mechanical energy are useful in everyday life.
Electrical and heat energy help cook food and keep us cool or warm.
Light and sound energy help us communicate and share information.
Mechanical energy is associated with motion or movement.
Potential energy is a ball or roller coaster at the top just before it drops.
What is different forms of energy (mechanical, potential, kinetic, heat, light, sound, electrical energy) and how do we use it?