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a most grievous error

a most grievous error. I am MASTER TIGRESS, and not “Tiger”. Credit goes to Ho Jian Kai for spotting this error. Some misconceptions. “When there is no air resistance, they fall at the same speed” This is incorrect. Speed is NOT constant. Only acceleration is constant. .

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a most grievous error

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  1. a most grievous error I am MASTER TIGRESS, and not “Tiger” Credit goes to HoJian Kai for spotting this error

  2. Some misconceptions • “When there is no air resistance, they fall at the same speed” • This is incorrect. Speed is NOT constant. Only acceleration is constant.

  3. Some misconceptions • “When there is no air resistance, freefall is constant” • Be careful what you mean here. Velocity or displacement is NOT constant in freefall, only acceleration.

  4. Some misconceptions • “…drop at the same time” • This statement is unclear. Either say “they hit the ground at the same time”, or “at any one time, they have the same velocity and displacement”

  5. Some misconceptions • “Everything will fall at the same acceleration” • Avoid sweeping words like “everything”. In actuality, the acceleration is only approximately the same, and only for near the surface of the Earth. Further away from the surface (both above or underground), g will change significantly

  6. Some misconceptions • “Force / Gravity acting on them is the same” • This is a misconception. The gravitational force acting on Po is larger than the gravitational force acting on Shifu. It is only their acceleration which is the same. We will explore this further in the next topic.

  7. Some misconceptions • “Mantis is wrong because he has a smaller brain” • Actually, insects (arthropods in general) have extremely complex brains for their size. Their brain complexity arises from twin parallel nerve cords which run through their entire body. (source: wikipedia)

  8. Some misconceptions • “Tiger is correct because I said so” • Marcarius said this. Please lynch him later for me.

  9. handouts • Han Do Hwi, Chia Weng Chin, Nathaniel Chan, Ng Rachel, Davis Tan, Low Jing Wen, MarcariusChia, Lance Lim, Dominic Ko, Jordan Khoo, Chen Wei, Ng Shi Qiang, Isabella Woo, Tommy, Chen Qiang, Chia Kin Mun, Chan Jun Leong, Samuel Chew, JostPng, AkaashPanday, Justin Koh

  10. Half Time • Dropping Hammer and Feather on the Moon http://www.youtube.com/watch?v=5C5_dOEyAfk • There are conspiracy theorists who believed that the Moon Landing was just cold war propaganda. This video is often cited as evidence that the Moon Landing was not a hoax.

  11. previously • You have filled out the exit card in the previous lesson • All of you have indicated what you would like to know more about. Some of these will be covered in future lessons • The rest will be covered in the following slides. • To assist us to answer your questions, we have requested the assistance of one most wise….

  12. Master OoGway replies to questions from 3E Did you know that “KAMEHAMEHA” means “THE WAVE OF DESTRUCTION FROM THE TURTLE”

  13. Before Galileo, it was previously believed that heavier objects fall faster (from Aristotle). Legend has it that Galileo dropped two balls of different mass from the Leaning Tower of Pisa which landed at the same time, proving Aristotle wrong. However, many historians now believe that Galileo never actually performed this experiment. (source: wikipedia) You have asked… I would like to know more about Galileo’s Discovery

  14. You have asked… “My method is to take the utmost trouble to find the right thing to say, and then say it with the utmost levity” – George Bernard Shaw Why Mr Wong keep giving us cartoons?

  15. You have asked… Why 10ms-2 is used for O levels while 9.81ms-2 is used for A levels? Because Cambridge thinks you can’t handle the truth.

  16. It has something to do with the fact that it is the same one Earth exerting gravitational force. You will learn more in A Levels. You have asked… Why is acceleration of free fall constant? • Qn: What is the g on the moon? • Ans: one-sixth that of Earth

  17. You have asked… Why does Mr Wong use Kung Fu Panda characters Even the dragon warrior stood atop the shoulders of giants

  18. For a few milliseconds, the object would undergo sudden and sharp deceleration (i.e. negative acceleration). You have asked… Why about velocity and acceleration upon hitting the ground?

  19. You have asked… I would like to know more about Morgan Freeman Youtube “How God Of War Should Have Ended” and satisfy your curiosity.

  20. You have asked… I want to learn more Physics! Cheesy! Fail Cheese. [Diagram of Cheese] Might you need some medication, Macarius?

  21. You have asked… Child. Seek not knowledge for knowledge’s sake, but for improving the lives of those around you. Also, YOLO!! I would like to know more about EVERYTHING / ALL OF IT

  22. You have asked… Does Mr Wong prefer Harry Potter to Kung Fu Panda? Too much hair in hairy potter’s clay, brittle china make.

  23. You Have Asked If Akaash displays tremendous skill when fighting his classmates, then we will obtain Kung Fu Panday I would like to learn more about Kung Fu Panda

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