Tuesday, February 7, 2023. Day 1

Homeroom:

YOU MUST:

  • COMPLETE 2 DAYS OF SSR IN HOMEROOM PER WEEK.

    • SSR counts if you have a book ready and read 20 minutes on your own free from distractions.

    • USE THREE DAYS FOR CLASS WORK AND PREPARATION.

  • YOU MAY ENGAGE IN COMMUNITY SERVICE AS SHOWN BELOW

CLASSROOM SUPPORT - COMMUNITY SERVICE OPPORTUNITY

TO SIGN UP - SEE ME.


Work Opportunities today:

  • ELA: Idiom Quiz Wednesday, character logs due next week.

  • SciTech: Quiz today

  • Civics: Quiz Friday

  • Spanish: Movie questions with 2 journal prompts - likely due Thursday

  • Science - finished lesson outline due


Do Now:

Pendulum Problem

A pendulum is motionless at its maximum height at Point A and then released.  It swings to its maximum height at point D.

  1. What form of energy does it have at Point A before it is released?

  2. What energy transformation occurs between point A and point B?

  3. At what point does it have its maximum KE?

  4. At what point does the pendulum have both PE and KE?


Homework to be completed:



Today’s agenda:

Review Energy transformations LO

Review the Do Now problem

Review Energy transformations LO

Basic forms of energy:

potential - stored energy

  • gravitational - stored by gravity and height

  • elastic - stored by stretching/compressing certain materials

  • chemical - stored in bonds between atoms of foods and fuels

  • nuclear - stored in the nucleus of atoms

kinetic - energy of motion

  • thermal - vibration of atoms in a substance due to temperature

  • sound - vibration of atoms in air

  • electric - flow of electric current (electrons) through wires

Mechanical - total of KE and PE in any system of parts

Radiant - light energy, electromagnetic radiation

  • light (visible, infrared, ultra violet

  • microwaves

  • X-rays

  • radiowaves, etc.

Energy Transformations

  • conversion of one form of energy into another.

  • any form of energy can be transformed into any other - though it may require more than one step.

Conservation of Energy

  • during any energy transformation - the total energy does not change

  • total energy before the transformation equals the total energy after the transformation

  • energy is neither created nor destroyed

PhET Energy forms and Changes Tool

activity