2019 Cary High School Physics

https://youtu.be/ZJr6VTqFXcI

Hi folks, Here are the answers. From the email: 1.  Because by using v = d/t you find an average time.  If you double that you find the time the car had when it left the launcher. 2.  .01 seconds is the amount of time the force was actually applied.  Since you wanted to find force, you need to use the time force was applied in order to do the calculation. Get Outlook for Android

Hi folks, For the last class of 2019 we dove quite a bit deeper into Newton's 2nd law.  We applied the law to a variety of sports to see how F=MA relates to baseball, football and soccer. We also did another fairly complex lab where the students had to find the force exerted by a Hot Wheels launcher.  They had to find the mass, velocity, time and acceleration of the cars in order to complete the task.   By the way, no class for the following two weeks.  I wish you all a Merry Christmas, a Happy New Year and the happiest of any holiday you may celebrate!  See you all in 2020! For homework due 1/8:  (Answers included in a separate email) Read pages 59 - 70 in the text. Do Review questions 1 - 18 on pages 71 and 72 Also do Plug and Chug questions 1 - 5 on page 72. Also answer the following questions based on today's lab. 1.  When you found the velocity of the car you had to double that for your calculations.  Why? 2.  When you found the accelera...

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Hi folks, We have began our unit on Newton's three laws of motion.  Today we covered Newton's first law and introduced Newton's second.  We will be doing more with Newton's second in upcoming weeks.   For homework this week, Read pages 43 - 55 in the text book. Do Review Questions 1 - 9 on page 56 Do Think and Explain questions # 1 - 12  on page 57 I've included the answers in a photo below so you can check yourself and study. Also, I've included the answer sheet for today's quiz.  There were quite a few folks that struggled with today's quiz and I'd highly recommend taking the time to retake the quiz and check yourself.  This question will be back next week so be prepared.

Hi folks, This week we did a bit of review and then dove into another fairly complex lab.  Today the students needed to use all the information we've gathered this year in order to do a lab where they found the resultant velocity of Hot Wheels car as it jumped a ramp. For homework this week,  Read pages 28 - 32 in the Conceptual Physics text book. Do the exercise on page 32. Do plug and chug questions # 1 - 5 on page 41 Do think and explain questions 1 - 2 on page 41 Do Think and Solve questions 1 - 6 on page 42. Answers below. Also: Do the enclosed .pdf.   Extra Credit Possibility!!!!!! For extra credit, let's take today's lab to the real world!  Use these videos to calculate the vertical velocity, horizontal velocity, resultant velocity and find the acceleration that the car had to have by the time it left the ramp. The car travels 332 ft.  Please show ALL #'s and calculations so that I can check your math. https://www.youtube.com/watch?v=7SjX7A_FR...