1/18 Physics class and homework due 1/25

Hi folks,


Last week we did a nice conceptual overview of what energy is and this week we got a bit more into the nitty gritty and mathematics behind energy. We introduced the concept that energy is the ability to do work and that work is equal to force times distance. To make that more concrete, we went outside and pushed my car again. This time, however, we measured the amount of force it took to move the car and measured how much time it took to move it. Using those measurements we calculated the energy it took for us to move the car and we found how many Watts and how much horsepower we used.


In my opinion the text that we're using goes into too little detail on energy. I'm including my Energy eBook to help supplement the text


Homework due next is to


Read the Defining Energy chapter in the eBook


In the Conceptual Physics text book do Plug and Chug Pg 120 #'s 1 and 3

And Think and Solve # 2, 4


Also, compare the wattage you had today to push the car to at least 5 different appliances around the house.  Email me if you can't remember your wattage.