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(i) Electromagnet

(ii) I can be turned on and off

(iii) maglev trainies

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you can hammer the bar magnet or heat it

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steel

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place a bar magnet close to the side of iron rod and if it has magnetised, one side will attract and other side will repel

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If the metal rod is a magnet one side will repel and the other side will attract, However if both sides attract or neither one attracts or repels, its not a magnet

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Place the compass next to the magnet and record where the arrow is pointing with a dot, and move the compass to that dot and repeat the process until it reaches back to magnet, line the dots and put an arrow in which the compass was pointing to.

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Iron is a magnetic material, and it is placed beside the magnet, so opposite poles will be induced in the iron bar, and opposite poles attract each other.

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Iron bar is a magnetic material, it has domains that will all align in the same direction (in this case S because of N pole)

The iron bar now moves because opposite poles attract

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Place it near a pemanent bar magnet, if it attrcats or repel, it is a magnet, however i not it isnt as it doesn't contain magnetic materials.

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If the metal rod is attracted to the magnet on both poles, it is not a magnet

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Can be switched on and off

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Iron is a magnetic material

Iron bar is magnetised/induced

Domains in Iron bar shifts

Dk?

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Can be switched on and off

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Place the plotting compass near the magnet on a piece of paper. Mark the direction the compass needle points. Move the plotting compass to many different positions in the magnetic field and mark the direction of the needle. Join the points to show the field lines.

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Has option to be turned on and off or change direction of polarity

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Domains of iron bar gets aligned so iron bar is magnetised and a South and North Pole is created. The N pole of the magnet attracts with the S pole of the iron bar so it moves

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The iron bar is attracted to the bar magnet, and becomes an induced magnet. The pole of the end of the iron bar that is closer to the bar magnet is S, which is the opposite pole to the pole of the end of the bar magnet that is closer to the iron bar. The pole of at the further end of the iron bar which is further away from the bar magnet is N.

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Can be able to switch on and off.

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Iron bars becomes a magnet and is attracted to the magnet

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It is being attracted by the magnet, as unlike poles attract so the iron bar's S pole faces the magnet's N pole.

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Iron is magnetic material, and it is inside the magnetic field of the magnet, so that the iron is attracted and iron bar moves toward the magnet

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Iron is magnetic material, and it is inside the magnetic field of the magnet, so that the iron is attracted and iron bar moves toward the magnet

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Able to switch on and off

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The iron is induce so the side reacts to the north side of the best and will turn into with and opposite sides will attract.

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It can be switvhed on or off

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Because the iron bar is induced, so the pole nearest to the north side of the iron bar will turn into the south. So, they are opposite poles so they attract.

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Easy to get

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The iron bars magnetic domain is aligned and the poles are opposite to the magnet.

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Use a magnet bar and move close to the iron rod, it will either repel or attract 

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Use a magnet bar and move close to the iron rod, it will either repel or attract 

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Student can move the bar magnet close to the metal rod. If the metal rod is a magnet, it can either repel or attract the bar magnet. If the metal rod is a non magnetic material it will neither repel or attract.

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Student can move the bar magnet close to the metal rod. If the metal rod is a magnet, it can either repel or attract the bar magnet. If the metal rod is a non magnetic material it will neither repel or attract.

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aluminum - no effect

copper - no effect

iron - attracted by magnet

steel - attracted by magnet

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gold- no effect aluminium-attracted copper- no effect iron- attracted steel- repel

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gold- no effect aluminium-attracted copper- no effect iron- attracted steel- repel

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steel

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gold: no effect

aluminum: attract

copper: no effect

iron: attract

steel: attract & repel

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(i) Electromagnet

(ii) It can be controlled by turning on and off

(iii)maglev train

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electromagnet as it can be switched on and off easily 

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electromagnet as it can be switched on and off easily 

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Hammering method. By repeatedly hitting the magnet, it will cause the magnetic domains to be misaligned and no longer be facing towards the same direction therefore lose its magnetism

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copper-no effect

Iron- attracted by magnet

Steel-attracted by magnet

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place bar magnet near iron bar n see if it repels or attracts 

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place bar magnet near iron bar n see if it repels or attracts 

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steel

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Firstly, place the magnet on the top of a piece of paper. Place the compass beside the magnet and plot the direction that the compass needle points by drawing a dots, move the compass from one pole to the other pole until you draw to the end.Place the back of the needles lines of the compass with the previous dot. Join all the points together and draw the direction. Repeat the step above but start with another starting point

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Firstly, place the magnet on the top of a piece of paper. Place the compass beside the magnet and plot the direction that the compass needle points by drawing a dots, move the compass from one pole to the other pole until you draw to the end.Place the back of the needles lines of the compass with the previous dot. Join all the points together and draw the direction. Repeat the step above but start with another starting point

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electro magnet, can adjust its strength, maglev trainies

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electro magnet, can adjust its strength, maglev trainies

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Place a known magnet next to the iron rod and see if the iron could attract and repel.

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bring one end of bar magnet to metal rod and see if it repels or attracts

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gold - no effect

aluminium - attracted

copper - no effect

iron - attracted

steel - repel

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can be switched on or off

maglev

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A permanent magnet can be demagnetised by passing an electric current of high frequency

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Put the paper rod on the iron rod see if it stick

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Put the paper rod on the iron rod see if it stick

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By striking it with a hammer repeatedly or by running an a.c. current through the magnet.

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By striking it with a hammer repeatedly or by running an a.c. current through the magnet.

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Place the bar magnet near one side of the metal rod. Observe if it attracts or repel. Do the same for the other side. If one side attracts and the other repels, it is a magnet. If both side is attracted it is not a magnet. If both side neither attracts or repel is is not a magnetic metal

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place compass at different position around the bar magnet and mark the direction of arrow, then connect mark lines with compass to draw pattern of magnetic field

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steel

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by hitting the magnet with strong force, enough to misalign the magnetic domains of the magnet

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Place bar magnet near to the iron bar, and check whether it attracts or not

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can be switched on and off

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By placing it near a magnetic material to see whether it repel or attracts

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By placing it near a magnetic material to see whether it repel or attracts

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the student use a bar magnet and place it near a metal rod. If it attracted, a metal rod is a magnet, but if it doesn't, it means it is not a magnet

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steel

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Hammer th permanent magnet from east to west

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Hammer th permanent magnet from east to west

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point differernt poles on the same spot of the rod. if one of the poles repel, the rod has fixed magnetic domains and has magnetism, thus is a metal

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Put the bar of magnet close to the metal rod see if repel or attract if it don’t is not a magnet

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Put the bar of magnet close to the metal rod see if repel or attract if it don’t is not a magnet

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Place the magnetic bar near it so it attracts 

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Place the magnetic bar near it so it attracts 

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electromagnet.

can be switched on or off

an alarm

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By placing a magnetic material near the metal rod. If it attracts, then the metal rod is a magnet.

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By placing a magnetic material near the metal rod. If it attracts, then the metal rod is a magnet.

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As iron bar are temporary magnets, it becomes a magnet temporally when it was closed to the bar magnet. it align the magnetic domains and magnetised the iron bar and as it was magnetised, the iron bar got attracted towards the magnet

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As iron bar are temporary magnets, it becomes a magnet temporally when it was closed to the bar magnet. it align the magnetic domains and magnetised the iron bar and as it was magnetised, the iron bar got attracted towards the magnet

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indeed to test whether any of the poles on the magnet can repel the iron rod

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Place the bar near the metal rod and see if it attracts towards the bar 

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Place the bar near the metal rod and see if it attracts towards the bar 

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hamming a magnet from east to west can scramble the magnetic domain, demagnetizing it

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Place the compass next to the magnet and record where the arrow is pointing with a dot. Move the compass to the dot and mark the dot at the direction of the arrow. Continue until it reaches back to the magnet. Line the dots with a line and draw an arrow in which the compass was pointing to

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hammer it or heat it

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permanent magnet induce magnetic materials so magnetic material would become a magnet. So magnetic material will be attracted to permanent magnet.

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steel

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repels magnet and attracts unmagnetised iron

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when the magnet is placed near the iron bar, iron bar will be magnetised and have north pole and south pole. If poles of the magnet and iron bar is different, iron bar will get attracted. Therefore the iron bar moves towards the magnet