Magnetism — Advanced

Grade 8 Science — Magnetism — Advanced: 25 practice questions with instant scoring and explanations.

1. A magnetic field is the region around a magnet where:
2. The direction of the magnetic field at a point is given by:
3. Magnetic field lines:
4. A compass is an instrument that:
5. The north pole of a compass needle points towards:
6. An electromagnet is a magnet created by:
7. The strength of an electromagnet depends on:
8. An electric bell works on the principle of:
9. In an electric bell, the electromagnet is:
10. A DC motor converts:
11. In a DC motor, the rotating coil is called:
12. The commutator in a DC motor is used to:
13. Electromagnetic induction is the phenomenon of:
14. Faraday's law of electromagnetic induction states that:
15. The direction of induced current is given by:
16. Lenz's law states that the induced current:
17. When a magnet is pushed into a coil of wire, an induced current flows because:
18. A transformer works on the principle of:
19. Two magnetic poles will repel each other if they are:
20. The magnetic field strength is measured in:
21. The Earth acts as a large magnet because:
22. Magnetic declination is the angle between:
23. Iron filings around a magnet arrange themselves:
24. The induced EMF in a coil is maximum when the coil rotates:
25. When current flows through a wire in a magnetic field, the wire experiences: