EVERYDAY SCIENCE - MAGNETS
Question 1

Churros was building a study desk. When he was trying to screw the legs to the tabletop, the screws kept falling out before he could properly insert them. Churros then had an idea to use a strong magnet to magnetise the steel screwdriver that he was using. This will enable the screws to be attracted screwdriver without dropping.

mag oeq1.jpg
Answer 1

Fill in the blanks with the keywords provided below.
[attract] • [stronger] • [like poles] • [more than 3 times] • [one pole] • [magnetic material] • [magnetic object] • [same direction]

a) How could Churros use a strong magnet to magnetise the steel screwdriver?

Answer:

Churros could use of the magnet to stroke the steel screwdriver several times in the . Steel is a , it can be magnetised when stroked by a magnet.


b) After stroking the screwdriver 3 times with the magnet, Churros then tried to use the screwdriver to attract the screw. The screw still fell off as it was too heavy. What should be done to make the screw stay attracted to the screwdriver?

Answer:

The screwdriver should be stroked . As a result, the screwdriver will become a magnet and will be able to attract the nail with a stronger force.


c) Can the magnetised screwdriver be used to repel an iron screw that is not magnetised?

Answer:

No. The magnetised screwdriver can only the iron screw which is a . Only 2 magnets can repel each other when their face each other.




DO YOU KNOW plain.png

“Natural magnets called lodestones are created by lightning!”