We then watched a short video on Motion which originally aired on the Science Channel, "Physical Science: Motion" (Video 20:20). Summary is below.
"Students developing solar cars have the laws of physics and motion fresh in their minds as they work to create lightweight cars that slip through the air, glide on smooth tires, and do not run out of energy. These cars run on solar power that creates electricity to run a small motor.
Unlike the cars, a roller coaster gets going with the help of mechanical energy in the form of a motorized chain that hauls the coaster up the first big hill. From there, momentum and kinetic energy take over.
Physics is also at work when skateboarders fly through the air in spectacular leaps and spins. It’s all physics.
People tried to emulate the flight of birds for centuries. We finally got it right when we learned to make a wing in an airfoil shape that would provide the lift necessary to get off the ground. That same shape helps a boomerang sail away, and come back, thanks to the physics.
Fish move through water as easily as we move through air. Building robotic fish helps scientists learn how they do this."
I passed back Chapter 2 Tests and explained that I took the three most often missed questions and turned them into bonus questions. My rationale is that obviously, even though they were all on the study guide given to the students, we did not go over them in detail. Turning these questions into Bonus questions rewards those who studied extra hard and does NOT punish those students who still had questions about these topics. I will be reviewing several of the key principles in this chapter as they are essential to succeeding in the math sections in the upcoming chapters. If you have a question, please let me know.
HOMEWORK: Read Chapter 10, Section 1 (p.280-287) and Study Section 1 for a 3 point quiz tomorrow.