EASY
Upper Secondary: IGCSE
IMPORTANT
Earn 100
Draw a diagram to show the field lines between two bar magnets with opposite poles close to each other.
Important Questions on Magnetism
EASY
Upper Secondary: IGCSE
IMPORTANT
State one way in which an electromagnet is different from a permanent bar magnet.
EASY
Upper Secondary: IGCSE
IMPORTANT
State one way in which an electromagnet is similar to a permanent bar magnet.
EASY
Upper Secondary: IGCSE
IMPORTANT
The diagram shows four permanent magnet arranged to form a square.
Copy the diagram and indicate which pairs of magnets will attract one another and which will repel.
EASY
Upper Secondary: IGCSE
IMPORTANT
The diagram shows four permanent magnet arranged to form a square.
Draw a second diagram in which the four magnet are arranged in a square so that each magnet attract the two other magnet to which is closest.
EASY
Upper Secondary: IGCSE
IMPORTANT
An electromagnet is a coil of wire through which a current can be passed. State three ways in which the strength of the electromagnet can be increased.
EASY
Upper Secondary: IGCSE
IMPORTANT
An electromagnet is a coil of wire through which a current can be passed. An electromagnet can be switched on and off. Suggest one situation where this would be an advantage over the constant field of a permanent magnet.
EASY
Upper Secondary: IGCSE
IMPORTANT
What is the difference between a hard magnetic and soft magnetic material? Explain which you would choose for a permanent magnet.
EASY
Upper Secondary: IGCSE
IMPORTANT
Explain which material (hard magnetic material or soft magnetic material) you would choose for a permanent magnet ?
