SC15.PS.15 | ALEX

Science (2015) Grade(s): 09-12 - Physical Science

Obtaining, Evaluating, and Communicating Information

Cause and Effect; Energy and Matter

Students know:

Three ways that waves may interact with matter are reflection, refraction, and diffraction.
The controlled use of waves have applications in science. Wave types vary based on wave speed, type of material (medium) required, motion of particles, and how they are produced.
Solar cells are human-made devices that likewise capture the sun's energy and produce electrical energy. Photoelectric materials emit electrons when they absorb light of a high-enough frequency.
When a light wave encounters an object, they are either transmitted, reflected, absorbed, refracted, polarized, diffracted, or scattered depending on the composition of the object and the wavelength of the light.

Students are able to:

Cite specific textual evidence to support analysis of science and technical texts attending to the precise details of explanations or descriptions.
Determine the central ideas or conclusions of a text; trace the explanation or depiction of a complex process, phenomenon, or concept; provide an accurate summary of the text distinct from prior knowledge or opinions.
Communicate information.

Students understand that:

Multiple technologies based on the understanding of waves and their interactions with matter are part of everyday experiences in the modern world (e.g., medical imaging, communications, scanners) and in scientific research.
Transmitting and receiving devices use the principles of wave behavior and wave interactions with matter to transmit and capture information and energy.
Information can be digitized (e.g., a picture stored as the values of an array of pixels); in this form, it can be stored reliably in computer memory and sent over long distances as a series of wave pulses.