VIDEO DO NOW: Please write in your notebooks your opinion of the video and any questions you may have about the video. We will revisit this video / questions again tomorrow. TO DO today: Do Now Q (save for later) Activity Review HW
INTRODUCTION Walk around the room and examine the objects you see…. Answer the questions on the page… WHAT IS THE CONNECTION BETWEEN THESE OBJECTS (keep it to your group when you figure it out…) WE WILL REVIEW AT THE END OF CLASS
What is the CONNECTION between all of those things? TODAY you examined some objects and we determined that the connection was…… ENERGY
ENERGY VIDEO
What is Energy? The ability to do work The ability to cause motion or change WHERE DOES MOST OF THE ENERGY COME FROM?
How is energy TRANSFERED? What is meant by conservation of energy? How is energy transferred between objects or systems?
The Law of Conservation of Energy states that energy can neither be created (produced) nor destroyed by itself. It can only be transformed/transferred. Newton’s Cradle
Types of Energy KINETIC – energy in progress, a body in motion Hover board
Types of Energy Potential - The potential to do work, or energy stored not being used yet. Coal
Types of Energy Mechanical – Sum of kinetic and potential energies.
VIDEO
Types of Energy Thermal – Energy required to change the temperature of something > Heat energy > transfers from warmer objects to cooler ones. video
Types of Energy Chemical - Energy by chemical reactions Video
Types of Energy Electrical – Energy by electricity video 2
Types of Energy Magnetic - potential energy by magnets or magnetic field video
Types of Energy Radiant – electromagnetic radiation energy, including light Light is wavelengths and differed wavelengths produce different colors. White Light is a combination of all other colors Video 1
ALBEDO Radiant light that is not absorbed by the Earth but is reflected back to space.
Types of Energy Elastic – potential mechanical energy stored required to distort volume or shape. Video 1 2
Types of Energy Gravitational – potential energy due to the force of gravity caused by the attraction of all other masses to the mass of the earth The potential to fall back to Earth Video 1
Types of Energy Sound – sound is produced by vibrations, the effect of mechanical energy propelled by oscillations (waves). Video Music
Types of Energy Ionization – the minimum amount of energy required to remove an electron from an atom. Video
Types of Energy Nuclear energy - is the energy required to split a nucleus of an atom into its component parts Video Three Mile Island
Nuclear energy