Simple Phenomena of Magnetism (11K) by Yan Jing Wong https://padlet.com/wongyanjing1/xbil4r7krv0oy56g en-us 2025-01-17 03:05:45 UTC 2025-01-21 03:44:55 UTC hello@padlet.com 27haroldsiady https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3294789750 The current that flows through the coil can be controlled easily using electromagnet

]]> 2025-01-17 11:44:09 UTC https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3294789750 27haroldsiady https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3294801120 The iron bar moves towards the magnet because the magnet's field makes it an induced magnet with opposite poles and the two unlike poles will then be attracted to each other

]]> 2025-01-17 11:57:10 UTC https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3294801120 27haroldsiady https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3294810081 The student can take the end of bar magnet and put it close to the end of the metal rod and if there is attraction, it means that the metal rod is a magnet. However, if there is repulsion, that means the metal rod is not a magnet

]]> 2025-01-17 12:08:01 UTC https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3294810081 27haroldsiady https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3294811706 If the iron rod has become a magnet, it will attract the unmagnetised iron

]]> 2025-01-17 12:09:48 UTC https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3294811706 27haroldsiady https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3294811951 Steel

]]> 2025-01-17 12:10:13 UTC https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3294811951 27haroldsiady https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3294812646 It can be demagnetised by heating it at high temperature level

]]> 2025-01-17 12:10:55 UTC https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3294812646 27haroldsiady https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3294814908 (i) Electromagnet

(ii) Electromagnet can be switched on/off

(iii) Crane that uses electromagnet to lift up heavy materials

]]> 2025-01-17 12:13:57 UTC https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3294814908 27haroldsiady https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3294815831 Steel

]]> 2025-01-17 12:14:59 UTC https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3294815831 27haroldsiady https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3294817176 Gold : No effect

Aluminium : No effect

Copper : No effect

Iron : Attracted by the magnet

Steel : Attracted by the magnet

]]> 2025-01-17 12:16:42 UTC https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3294817176 27haroldsiady https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3294824064 Place the compass near the magnet on a piece of paper and mark the direction the needle points. Move the compass to different spots in the magnetic field, marking the needle direction each time. After that, connect the marks to show the magnetic lines and repeat from different starting points to draw multiple field lines which will begin from the magnet's north pole and it will curve to the south pole

]]> 2025-01-17 12:24:42 UTC https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3294824064 415 A) (II) https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3296219408 As the magnet induces a south pole on the iron bar which magnetizes it and causes the iron bar to attract the magnet

]]> 2025-01-19 12:08:11 UTC https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3296219408 422 A) https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3296220056 place the plotting compass on the edge of either the north or south pole. Using a pencil place a dot to where the arrow head is pointed. Move the plotting compass so that the dot is on the circumference of the plotting compass. Repeat until the arrow head points at the opposite pole

]]> 2025-01-19 12:09:58 UTC https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3296220056 423 B) https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3296220894 By turning 1 side of the rod to face a known pole of the magnet and turning the rotating the rod to the opposite side of magnetised it should attract one side and repel another if its not magnetic it should attract on both sides

]]> 2025-01-19 12:11:17 UTC https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3296220894 424 B) https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3296221125 By using another magnet with known poles which should attract and repel if magnetised

]]> 2025-01-19 12:11:58 UTC https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3296221125 424 C) https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3296221213 steel

]]> 2025-01-19 12:12:13 UTC https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3296221213 424 D) https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3296221497 Wrap a coil around the magnet and apply A.C or alternating current to the magnet. Slowly reduce current

]]> 2025-01-19 12:12:52 UTC https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3296221497 424) E) (I) (II) (III) https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3296221875 I) electromagnet

II) can be switched off

III) land fill usage

]]> 2025-01-19 12:13:37 UTC https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3296221875 425 C) https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3296222024 steel

]]> 2025-01-19 12:13:58 UTC https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3296222024 428 B) https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3296222355 Gold- no affect

Aluminium- no affect

copper- no effect

iron - attracted

steel- attrracted

]]> 2025-01-19 12:14:46 UTC https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3296222355 415 B) https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3296222573 can be switched on and off

]]> 2025-01-19 12:15:18 UTC https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3296222573 27yaasmithan https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3296234032 The iron bar moves towards the magnet because the magnet's magnetic field induces a magnetic charge in the bar, creating opposite poles that are attracted to each other.

]]> 2025-01-19 12:39:23 UTC https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3296234032 27yaasmithan https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3296257580 An electromagnet allows for easy control of the current flowing through the coil.

]]> 2025-01-19 13:30:20 UTC https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3296257580 27yaasmithan https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3296257967 lace the plotting compass near one of the poles (north or south) and mark the position where the arrowhead points with a pencil. Shift the compass so the mark is now at the edge of the compass, and repeat this process until the arrowhead indicates the opposite pole.

]]> 2025-01-19 13:31:05 UTC https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3296257967 27yaasmithan https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3296258277 The student can bring one end of the bar magnet near the metal rod. If there is an attraction, the metal rod is magnetized. If there is repulsion, the metal rod is not magnetized

]]> 2025-01-19 13:31:35 UTC https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3296258277 27yaasmithan https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3296258325 steel

]]> 2025-01-19 13:31:45 UTC https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3296258325 27yaasmithan https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3298148728 A magnetized iron rod will attract unmagnetized iron.

]]> 2025-01-21 03:43:02 UTC https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3298148728 27yaasmithan https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3298148859 steel

]]> 2025-01-21 03:43:11 UTC https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3298148859 https://padlet.com/wongyanjing1/xbil4r7krv0oy56g/wish/3298150333 steel


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