https://padlet.com/ang_joo_liak/S4_MYEs Post your questions, with images. Also refer to http://19physics.pbworks.com/w/page/132797274/prep_for_mye en-us 2019-05-01 14:39:26 UTC 2023-06-11 04:23:46 UTC hello@padlet.com https://imgglb.padletcdn.com/v13/image?t=g_auto&url=https%3A%2F%2Fpadlet.net%2Ficons%2Fpng%2F1f914.png https://padlet.com/ang_joo_liak/S4_MYEs/wish/367430049 Thank you very much, Mr Ang!]]> 2019-06-13 14:58:32 UTC https://padlet.com/ang_joo_liak/S4_MYEs/wish/367430049 https://padlet.com/ang_joo_liak/S4_MYEs/wish/367688011 2019-06-15 08:55:22 UTC https://padlet.com/ang_joo_liak/S4_MYEs/wish/367688011 https://padlet.com/ang_joo_liak/S4_MYEs/wish/367755398 May I know how to solve q13? thank you!]]> 2019-06-16 08:14:49 UTC https://padlet.com/ang_joo_liak/S4_MYEs/wish/367755398 https://padlet.com/ang_joo_liak/S4_MYEs/wish/367755433 what does "alternating current" in q29 mean? thank you!]]> 2019-06-16 08:15:41 UTC https://padlet.com/ang_joo_liak/S4_MYEs/wish/367755433 https://padlet.com/ang_joo_liak/S4_MYEs/wish/367755503  Why is q4a region B? Isn’t the bending direction of the water waves towards the normal in region B so region B should be the shallow one? thank you!


]]> 2019-06-16 08:16:54 UTC https://padlet.com/ang_joo_liak/S4_MYEs/wish/367755503 ang_joo_liak https://padlet.com/ang_joo_liak/S4_MYEs/wish/367774879 2019-06-16 14:29:16 UTC https://padlet.com/ang_joo_liak/S4_MYEs/wish/367774879 https://padlet.com/ang_joo_liak/S4_MYEs/wish/367832805 Hi Mr Ang! May I know why the answer is B for this question? I understand that the distance waves have to travel decreases in shallower water, but wouldn’t the speed of the waves decrease too? Thank you very much! ]]> 2019-06-17 02:37:00 UTC https://padlet.com/ang_joo_liak/S4_MYEs/wish/367832805 https://padlet.com/ang_joo_liak/S4_MYEs/wish/368055737 Hi Mr Ang! May i know how to solve the following question? Thank you!]]> 2019-06-18 07:04:35 UTC https://padlet.com/ang_joo_liak/S4_MYEs/wish/368055737 https://padlet.com/ang_joo_liak/S4_MYEs/wish/368055839 Hi Mr Ang! For q21, I thought that "work done to move a charge through an electrical component in a circuit" is referring to potential difference (according to the definition of potential difference) so the question is asking for the units of potential difference. but why is it that the answer for the question is the units for work done? thank you!]]> 2019-06-18 07:05:35 UTC https://padlet.com/ang_joo_liak/S4_MYEs/wish/368055839 https://padlet.com/ang_joo_liak/S4_MYEs/wish/368803692 Hi Mr Ang! May I know why is the answer for q5e "increase the focal length"? when the object is moved further from the eyes, isn't the image closer to the lens so a shorter focal length should be used? thank you!]]> 2019-06-23 14:00:47 UTC https://padlet.com/ang_joo_liak/S4_MYEs/wish/368803692 https://padlet.com/ang_joo_liak/S4_MYEs/wish/368803846 here is part e for q5 that I asked in the previous post. Thank you!]]> 2019-06-23 14:03:11 UTC https://padlet.com/ang_joo_liak/S4_MYEs/wish/368803846 https://padlet.com/ang_joo_liak/S4_MYEs/wish/368812013 Given that an entire string only has one tension value (T1), is it correct that should there be two points of contact with a portrait, the string is able to exert two (T1) forces at each point but total tension ≠ T1 + T1? Thank you very much!]]> 2019-06-23 15:55:20 UTC https://padlet.com/ang_joo_liak/S4_MYEs/wish/368812013 ang_joo_liak https://padlet.com/ang_joo_liak/S4_MYEs/wish/369293548 2019-06-26 15:05:31 UTC https://padlet.com/ang_joo_liak/S4_MYEs/wish/369293548 https://padlet.com/ang_joo_liak/S4_MYEs/wish/1592485153 What does an insulating thread do? Does it only prevent the flow of electrons or prevent any attraction or repulsion?]]> 2021-06-08 10:18:57 UTC https://padlet.com/ang_joo_liak/S4_MYEs/wish/1592485153 https://padlet.com/ang_joo_liak/S4_MYEs/wish/1597518780 Hi Mr ang, for this question part b, when calculating acceleration, the time is calculated by 5x0.2. Why is the number of spacing 5? Thank you!]]> 2021-06-10 03:23:40 UTC https://padlet.com/ang_joo_liak/S4_MYEs/wish/1597518780 ang_joo_liak https://padlet.com/ang_joo_liak/S4_MYEs/wish/1619339361 how do I know what points the curve will pass through? Like I know it’s a curve but like how do I know it’s position? Like in the ans key the two dots I labelled, like how do I know if it will start there? ]]> 2021-06-22 09:09:09 UTC https://padlet.com/ang_joo_liak/S4_MYEs/wish/1619339361 haveaniceday https://padlet.com/ang_joo_liak/S4_MYEs/wish/1621318531 The question asks us to state one possible state of motion if the car at this instant and the answer key gives both “moving at constant velocity” and “at rest” as the answer and that both are necessary as they show understanding of Newton’s first law, does this mean that “moving at constant velocity” and “at rest” are the same state of motion of the car? Thank you Mr Ang!]]> 2021-06-23 08:13:42 UTC https://padlet.com/ang_joo_liak/S4_MYEs/wish/1621318531 https://padlet.com/ang_joo_liak/S4_MYEs/wish/1621894527 how do we determine the direction of a thermistor symbol?]]> 2021-06-23 15:31:06 UTC https://padlet.com/ang_joo_liak/S4_MYEs/wish/1621894527 https://padlet.com/ang_joo_liak/S4_MYEs/wish/1622718582 2021-06-24 02:05:10 UTC https://padlet.com/ang_joo_liak/S4_MYEs/wish/1622718582 ang_joo_liak https://padlet.com/ang_joo_liak/S4_MYEs/wish/1623793209 I want to ask about option B… what is the reading on the voltmeter, as in what pd is it measuring? And what is the reading on the ammeter, as in what current is it measuring?]]> 2021-06-24 15:25:21 UTC https://padlet.com/ang_joo_liak/S4_MYEs/wish/1623793209 https://padlet.com/ang_joo_liak/S4_MYEs/wish/1626725670 the answer said that the steepest line has to be from origin (0,0) and touching the curve to find the point of smallest resistance, but why does it have to be from the origin? Why can’t it just be the point on the curve with the steepest gradient? ]]> 2021-06-27 02:50:16 UTC https://padlet.com/ang_joo_liak/S4_MYEs/wish/1626725670 ang_joo_liak https://padlet.com/ang_joo_liak/S4_MYEs/wish/1633377724 Why is the answer B? As if the focal length equals to the ‘u’, wouldn’t that mean that v is infinity? And how does the image of the object form then? ]]> 2021-07-01 13:01:09 UTC https://padlet.com/ang_joo_liak/S4_MYEs/wish/1633377724 ang_joo_liak https://padlet.com/ang_joo_liak/S4_MYEs/wish/1633530346 I only don’t really understand the solution for Q14]]> 2021-07-01 14:52:13 UTC https://padlet.com/ang_joo_liak/S4_MYEs/wish/1633530346