3Cr: Use of Magnet in daily lives by https://padlet.com/lee_qian_hui_a/magnets3cr Take a picture/search on Google an object that makes use of magnets and tell us how it works! P.S: You can show videos too! en-us 2018-08-27 08:10:44 UTC 2025-12-16 17:34:31 UTC hello@padlet.com Ms Lee QH (0) lee_qian_hui_a https://padlet.com/lee_qian_hui_a/magnets3cr/wish/275468999 Maglev trains operate without wheels as they 'float' above the track due to magnetic repulsion between electromagnets in the track and underside of the train. 

Maglev trains can travel very fast, up to 480 km/h]]> 2018-08-27 08:10:44 UTC https://padlet.com/lee_qian_hui_a/magnets3cr/wish/275468999 Ashley ng (2) https://padlet.com/lee_qian_hui_a/magnets3cr/wish/276543705 Magnets can be used to hold cabinet doors shut. Please see the picture below for more information .

]]> 2018-08-30 12:17:22 UTC https://padlet.com/lee_qian_hui_a/magnets3cr/wish/276543705 Ethan Ong (12 https://padlet.com/lee_qian_hui_a/magnets3cr/wish/276809728 A compass points north because all magnets have two poles , a north pole and a south pole, and the north pole of one magnet is attracted to the south pole of another magnet. ]]> 2018-08-31 04:59:15 UTC https://padlet.com/lee_qian_hui_a/magnets3cr/wish/276809728 Ashlyn E (10) https://padlet.com/lee_qian_hui_a/magnets3cr/wish/276828765 We can use magnets to hold up important notes, grocery list and photos on the fridge door.]]> 2018-08-31 07:52:38 UTC https://padlet.com/lee_qian_hui_a/magnets3cr/wish/276828765 Zander Guay (15) https://padlet.com/lee_qian_hui_a/magnets3cr/wish/277074208 A doorstop (also door stopper)  is an object or device which make use of magnets to hold a door open or closed.]]> 2018-09-01 12:33:04 UTC https://padlet.com/lee_qian_hui_a/magnets3cr/wish/277074208 Christian Chen (6) lbeak https://padlet.com/lee_qian_hui_a/magnets3cr/wish/277122775 In order for a music player to produce sounds,both permanent magnet and electromagnet must interact with each other.]]> 2018-09-02 05:20:01 UTC https://padlet.com/lee_qian_hui_a/magnets3cr/wish/277122775 Christian Chen lbeak https://padlet.com/lee_qian_hui_a/magnets3cr/wish/277125974 When a phone is pick up,a connection between the two phones initialled.The mouthpiece acts like a microphone.Sound waves from the user’ voice cause a thin plastic disk inside the phone to vibrate.These magnet cause a metal diaphragm to vibrate.]]> 2018-09-02 06:33:05 UTC https://padlet.com/lee_qian_hui_a/magnets3cr/wish/277125974 Ho Zen-Yu https://padlet.com/lee_qian_hui_a/magnets3cr/wish/277131159 Credit cards has a magnetic strip that are use to store informations 

]]> 2018-09-02 08:27:57 UTC https://padlet.com/lee_qian_hui_a/magnets3cr/wish/277131159 Samantha lee (30) https://padlet.com/lee_qian_hui_a/magnets3cr/wish/277240455 the magnets is connected to the diaphragm of the speaker and as electric current is passed in this causes the magnet to push and pull on the diaphragm making the move resulting in sound waves being produced these sound waves then enter your ear making you hear the noise so the magnets helps produce the sound you hear from a speaker.]]> 2018-09-03 06:49:28 UTC https://padlet.com/lee_qian_hui_a/magnets3cr/wish/277240455 Zander Koh(22 https://padlet.com/lee_qian_hui_a/magnets3cr/wish/277242789 Most computers use tiny magnets to store information the hard disk inside a computer is made up of metal plates. Tiny areas on these plates can be magnetic or nonmagnetic,creating a code that the computer can turn into data such as pictures,sounds,and videos.]]> 2018-09-03 07:02:31 UTC https://padlet.com/lee_qian_hui_a/magnets3cr/wish/277242789 Verlene Chua(37) clarencechuack https://padlet.com/lee_qian_hui_a/magnets3cr/wish/277264277 Rare earth magnets are used in the motors that turn drum type washers and dryers. Rare earth magnets help reduce the vibration and noise of washing machines.]]> 2018-09-03 08:51:43 UTC https://padlet.com/lee_qian_hui_a/magnets3cr/wish/277264277 Joash Chong (8 https://padlet.com/lee_qian_hui_a/magnets3cr/wish/277466970 There are several magnets in a vacuum cleaner's motor, including permanent magnets and electromagnets. The magnetic fields push against each other to create the force that drives the motor. The motor, in turn, drives a fan, which creates the suction that pulls dirt and dust into the unit.        Additionally, some vacuum cleaners, are adapted with a magnetic device that removes metallic objects before they are sucked up.
 
]]> 2018-09-04 09:10:30 UTC https://padlet.com/lee_qian_hui_a/magnets3cr/wish/277466970 Vivienne Lee(38) https://padlet.com/lee_qian_hui_a/magnets3cr/wish/277506194 Many building toys have magnets in them. The magnets make the building toys stick together. We will also see magnets couplers used to connect in a toy train set. Magnetic chess and checkers sets keep the game organized with a little magnet in each game piece. By themselves, magnets make fascinating toys and clearly demonstrate magnetic principles.]]> 2018-09-04 12:17:54 UTC https://padlet.com/lee_qian_hui_a/magnets3cr/wish/277506194 Augustin Tan(3) https://padlet.com/lee_qian_hui_a/magnets3cr/wish/277513143 In the enclosure of a headphone there is a permanent magnet. Next to it is a metal of source. This metal is coiled by wires that extends to a power source such as a phone. When the wires are connected to a power source, the current is passed through the wires. The metal is magnetized. First creating a magnetic field. This is called an electromagnet.]]> 2018-09-04 12:36:56 UTC https://padlet.com/lee_qian_hui_a/magnets3cr/wish/277513143 Ming Wei(34) https://padlet.com/lee_qian_hui_a/magnets3cr/wish/277540937 The flip cover we have is equipped with one or two magnets. One primary magnet is close to the edge of your phone where the Hall sensor(used to detect magnetic fields) lies in the phone and one secondary magnet(optional) is towards the edge of cover. The Hall sensor receives a strong magnetic field when we try to  close the cover. This hall sensor detects the presence of strong magnetic field and instructs the device to shut the screen back light or show only a portion of the screen(which you can see in view covers).The reverse process happens when we open the cover. The purpose of secondary magnet is to make the flip cover stick to the device when you close it.
]]> 2018-09-04 13:33:08 UTC https://padlet.com/lee_qian_hui_a/magnets3cr/wish/277540937 Tan Jun Yu (31) https://padlet.com/lee_qian_hui_a/magnets3cr/wish/277569538 Magnetic suspension systems are an alternative automotive suspension system that utilizes magnetically controlled dampers, or shock absorbers, for a highly adaptive smooth ride. The absence of mechanical valves and small moving parts makes this type of suspension resistant to wear. Magnetic suspension systems generally consist of four monotube dampers with magneto-rheological (MR) fluid, one on each wheel of the vehicle, a sensor set and an ECU (Electronic Control Unit) to control the system.
]]> 2018-09-04 14:25:36 UTC https://padlet.com/lee_qian_hui_a/magnets3cr/wish/277569538 Enzo Png (11) https://padlet.com/lee_qian_hui_a/magnets3cr/wish/278374780 A fridge magnet can hold papers against the fridge as there is magnetism between the magnet and the magnetic part of the fridge. Unlike poles of the magnet would attract. For example the south-pole of the fridge magnet would be able to connect with the north-pole of the magnetic part of the fridge however like poles of the magnet do not attract instead it would repel. For example the north-pole of the fridge magnet and the north-pole of the magnetic part of the fridge would repel as the same poles are facing each other so the magnet would not be able to hold the paper against the fridge.]]> 2018-09-06 12:34:57 UTC https://padlet.com/lee_qian_hui_a/magnets3cr/wish/278374780 Fong Pin teckleong_fong https://padlet.com/lee_qian_hui_a/magnets3cr/wish/278857696 A fridge magnet helps you hold notes, pictures or something that you need to remember to do it. ]]> 2018-09-07 14:07:55 UTC https://padlet.com/lee_qian_hui_a/magnets3cr/wish/278857696 Aidan Tang (33) https://padlet.com/lee_qian_hui_a/magnets3cr/wish/279086615 Recycling centres use magnets to help sort out steel objects, such as tin cans, from other recyclables. However the magnet won't help pick out the aluminum cans, because aluminum is't magnetic.]]> 2018-09-08 15:02:13 UTC https://padlet.com/lee_qian_hui_a/magnets3cr/wish/279086615 Rachel Lee [23] https://padlet.com/lee_qian_hui_a/magnets3cr/wish/279137599 In order for the stereo to translate an electrical signal into an audible sound, speakers contain an electromagnet: a metal coil which creates a magnetic field when an electric current flows through it. ... This means that it is in turn attracted to and repelled from the permanent magnet, vibrating back and forth.
When a fluctuating electric current flows through the coil (orange), it becomes a temporary electromagnet, attracted and repelled by the permanent magnet (blue/red). As the coil moves, it moves the cone (gray) back and forth, pumping sound waves into the air (light blue). Here is a video for "How Stereo Speaker works?"


]]> 2018-09-09 07:51:28 UTC https://padlet.com/lee_qian_hui_a/magnets3cr/wish/279137599 https://padlet.com/lee_qian_hui_a/magnets3cr/wish/279138126 2018-09-09 08:01:37 UTC https://padlet.com/lee_qian_hui_a/magnets3cr/wish/279138126 Goh Rui Tian(1 https://padlet.com/lee_qian_hui_a/magnets3cr/wish/279143150 These kinds of whiteboard dusters has a magnet inside so it can stay on a kind of magnetic whiteboard.]]> 2018-09-09 09:20:16 UTC https://padlet.com/lee_qian_hui_a/magnets3cr/wish/279143150 Zachary Chen (39) https://padlet.com/lee_qian_hui_a/magnets3cr/wish/279143862 At the dump,cranes have an giant metallic iron to move heavy metal things like,cars, nails and more it would not attract aluminum foil and other non-metallic objects.]]> 2018-09-09 09:31:37 UTC https://padlet.com/lee_qian_hui_a/magnets3cr/wish/279143862 Chua Hui Ru (9 https://padlet.com/lee_qian_hui_a/magnets3cr/wish/279147160 2018-09-09 10:27:45 UTC https://padlet.com/lee_qian_hui_a/magnets3cr/wish/279147160 https://padlet.com/lee_qian_hui_a/magnets3cr/wish/279147234 DC servo motors containing magnets are used to spin the disk drives in our home PC.]]> 2018-09-09 10:28:48 UTC https://padlet.com/lee_qian_hui_a/magnets3cr/wish/279147234 Callista Kee (5) https://padlet.com/lee_qian_hui_a/magnets3cr/wish/279147248 Holds door open with magnetic catch.The door stopper is going to firmly hold the door in place.It will prevent the doors from slamming shut,as well as protect the walls from being damaged by a door knob.]]> 2018-09-09 10:29:06 UTC https://padlet.com/lee_qian_hui_a/magnets3cr/wish/279147248 Isabelle Lee https://padlet.com/lee_qian_hui_a/magnets3cr/wish/279147403  Magnets are used in roller coaster.The quick launch of a roller coaster is due to the magnetic propulsion. This depends on magnets repelling each other rather than attracting. Estimates with very strong magnets suggest that such propulsion could send a roller coaster up to 100 mph in a few seconds. Also, a roller coaster depends on magnetic braking, where magnets, which attract each other gradually, slow down a roller coaster. These brakes require less replacement than an ordinary roller coaster brakes, and are a cost-effective, energy saving device. Usually, magnets on roller coasters are controlled through automated systems. When propulsion is needed, magnets with different polarities may push down against the sides of the track to make contact with magnets with opposite polarities. When attraction is needed, magnets place along the track gradually slow down the coaster.   ]]> 2018-09-09 10:32:05 UTC https://padlet.com/lee_qian_hui_a/magnets3cr/wish/279147403 https://padlet.com/lee_qian_hui_a/magnets3cr/wish/279147682 2018-09-09 10:37:29 UTC https://padlet.com/lee_qian_hui_a/magnets3cr/wish/279147682 Travis Lim (36) https://padlet.com/lee_qian_hui_a/magnets3cr/wish/279147970 Magnets are used on phone covers to secure the cover flap to the cover. 

]]> 2018-09-09 10:43:09 UTC https://padlet.com/lee_qian_hui_a/magnets3cr/wish/279147970 https://padlet.com/lee_qian_hui_a/magnets3cr/wish/279148580 2018-09-09 10:55:32 UTC https://padlet.com/lee_qian_hui_a/magnets3cr/wish/279148580 Chim Yoke Hei (7) https://padlet.com/lee_qian_hui_a/magnets3cr/wish/279151769 Strong rare earth magnets can turn some metals into magnets. Did you know that ferromagnetic materials like iron can be magnetized with a strong permanent magnet? You can do so by rubbing a magnet on a screwdriver. The screwdriver will then be able to pick up magnetic objects.]]> 2018-09-09 11:56:09 UTC https://padlet.com/lee_qian_hui_a/magnets3cr/wish/279151769 Kai Ananda Asokan (20) https://padlet.com/lee_qian_hui_a/magnets3cr/wish/279153738 The refrigerator uses magnets to keep the door closed. ]]> 2018-09-09 12:31:11 UTC https://padlet.com/lee_qian_hui_a/magnets3cr/wish/279153738 Kayla Low (21) https://padlet.com/lee_qian_hui_a/magnets3cr/wish/279154857 This is a magnetic knife holder. The magnet on the holder holds the knife because it is made of metal.]]> 2018-09-09 12:49:06 UTC https://padlet.com/lee_qian_hui_a/magnets3cr/wish/279154857 Isabelle Tan(19) belletzq1 https://padlet.com/lee_qian_hui_a/magnets3cr/wish/279154928 MRI machine uses a powerful magnet to generate images of the organs in the body. ]]> 2018-09-09 12:50:19 UTC https://padlet.com/lee_qian_hui_a/magnets3cr/wish/279154928 Ervin Teo (35) https://padlet.com/lee_qian_hui_a/magnets3cr/wish/279155333 A fridge door magnet is magnetized to create something called a Halbach Array. This forces one side of the magnetic field out while keeping the other side in. That is how a fridge door magnet works. ]]> 2018-09-09 12:56:24 UTC https://padlet.com/lee_qian_hui_a/magnets3cr/wish/279155333 Isabelle Tan(19) belletzq1 https://padlet.com/lee_qian_hui_a/magnets3cr/wish/279155337 Here's an image of a human head generated from MRI.]]> 2018-09-09 12:56:27 UTC https://padlet.com/lee_qian_hui_a/magnets3cr/wish/279155337 Lim xuan https://padlet.com/lee_qian_hui_a/magnets3cr/wish/279771777 this ipad cover has a little magnet inside the cover and to close the cover.]]> 2018-09-11 10:10:55 UTC https://padlet.com/lee_qian_hui_a/magnets3cr/wish/279771777 Zhang Xinyuan (40) https://padlet.com/lee_qian_hui_a/magnets3cr/wish/279798501 A magnet is a material or object that produces a magnetic field.This magnetic field is invisible but is responsible for the most notable property of a magnet: a force that pulls on other ferromagnetic materials, such as iron, and attracts or repels other magnets.]]> 2018-09-11 11:57:37 UTC https://padlet.com/lee_qian_hui_a/magnets3cr/wish/279798501 Alfie (1) https://padlet.com/lee_qian_hui_a/magnets3cr/wish/280242843 2018-09-12 08:54:22 UTC https://padlet.com/lee_qian_hui_a/magnets3cr/wish/280242843 https://padlet.com/lee_qian_hui_a/magnets3cr/wish/280243381 The door of the fridge uses a magnet to close the door. A magnet is attached to the door of the fridge and on the other side of the fridge has another magnet. The magnets on either sides of the fridge attract each other as the unlike poles of the magnets are facing each other. When the fridge is closed, the magnets attract each other and the door closes.]]> 2018-09-12 08:56:27 UTC https://padlet.com/lee_qian_hui_a/magnets3cr/wish/280243381 Lydia Tan Mei Ting(26) https://padlet.com/lee_qian_hui_a/magnets3cr/wish/280773658 Some toys have magnets attached in them.Like this Magnetic Tiles,it uses magnetic forces to build structures that give free rein to your creativity.
It is also a wonderful toy to help develop spatial, tactile, patterning and basic geometry skills.]]> 2018-09-13 12:08:14 UTC https://padlet.com/lee_qian_hui_a/magnets3cr/wish/280773658 Leong Chern Teng(24) https://padlet.com/lee_qian_hui_a/magnets3cr/wish/284242906 People use magnet to rub on the rings so that the ring are magnetic or the people rub the rings with a magnet but one of the is not rubed the person used the same magnet to attract one of the rings to pull the rest of the rings to the mag]]> 2018-09-21 07:13:31 UTC https://padlet.com/lee_qian_hui_a/magnets3cr/wish/284242906 Ng Hui lin(27） https://padlet.com/lee_qian_hui_a/magnets3cr/wish/284394877 2018-09-21 14:27:53 UTC https://padlet.com/lee_qian_hui_a/magnets3cr/wish/284394877 Some part of the fan are mag https://padlet.com/lee_qian_hui_a/magnets3cr/wish/284423972 2018-09-21 15:20:27 UTC https://padlet.com/lee_qian_hui_a/magnets3cr/wish/284423972 NG HUI LIN(27) https://padlet.com/lee_qian_hui_a/magnets3cr/wish/284749333 Magnetic paint or primer is just like regular paint, except that tiny particles of iron dust are mixed in. When you paint it on a surface, you end up with a layer of dark primer with many tiny flecks of iron spread throughout. Magnets are attracted to these bits and pieces of iron.

]]> 2018-09-23 14:31:23 UTC https://padlet.com/lee_qian_hui_a/magnets3cr/wish/284749333 https://padlet.com/lee_qian_hui_a/magnets3cr/wish/284750582 2018-09-23 14:39:44 UTC https://padlet.com/lee_qian_hui_a/magnets3cr/wish/284750582 https://www.google.com/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&ved=2ahUKEwiXgMLTrdHdAhVbX30KHUoFAh0QjRx6BAgBEAU&url=https%3A%2F%2Fpaintbyuser.com%2Fmagnetic-chalk-paint-ideas%2Fdiy-how-to-make-a-magnetic-chalkboard-wall-youtube%2F https://padlet.com/lee_qian_hui_a/magnets3cr/wish/284751144 2018-09-23 14:42:54 UTC https://padlet.com/lee_qian_hui_a/magnets3cr/wish/284751144