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Pertanyaan 1
Pilihan ganda
What is a magnet primarily made of?
- Copper
- Iron
- Aluminum
- Plastic
Labirin
Bebas
SD 6
IPA
Magnets
Ahmad Mujahid
2
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Pertanyaan 2
Pilihan ganda
Which of the following materials is not magnetic?
- Nickel
- Cobalt
- Gold
- Iron
Pertanyaan 3
Pilihan ganda
What is the region around a magnet where magnetic forces act called?
- Electric field
- Magnetic field
- Gravitational field
- Nuclear field
Pertanyaan 4
Pilihan ganda
What is the north-seeking pole of a magnet called?
- South Pole
- Equator
- North Pole
- Magnetosphere
Pertanyaan 5
Pilihan ganda
What happens when you cut a bar magnet in half?
- You get two monopoles
- You get two smaller magnets
- It loses its magnetism
- It becomes an electric conductor
Pertanyaan 6
Pilihan ganda
Which device uses magnets to convert electrical energy into mechanical energy?
- Generator
- Transformer
- Motor
- Battery
Pertanyaan 7
Pilihan ganda
What is the cause of the Earth's magnetic field?
- Its atmosphere
- Its rotation
- Its molten iron core
- Its oceans
Pertanyaan 8
Pilihan ganda
Which of the following statements is true about the Earth's magnetic poles?
- They are fixed
- They reverse over time
- They are located at the geographic poles
- They are made of copper
Pertanyaan 9
Pilihan ganda
What is the main function of a compass?
- To measure temperature
- To find directions
- To predict weather
- To detect earthquakes
Pertanyaan 10
Pilihan ganda
Which of the following is a property of magnets?
- They conduct electricity
- They have a single pole
- They attract only metals
- They attract and repel
Pertanyaan 11
Pilihan ganda
Which of the following is a use of electromagnets?
- Magnetize metals permanently
- Store data in computers
- Heat up metals
- Generate solar power
Pertanyaan 12
Pilihan ganda
What type of magnet is created by electric current?
- Permanent magnet
- Temporary magnet
- Electromagnet
- Supermagnet
Pertanyaan 13
Pilihan ganda
Which of the following can demagnetize a permanent magnet?
- Cooling it
- Heating it
- Wrapping it in plastic
- Putting it in water
Pertanyaan 14
Pilihan ganda
What is the term for materials that are strongly attracted to magnets?
- Paramagnetic
- Diamagnetic
- Ferromagnetic
- Non-magnetic
Pertanyaan 15
Pilihan ganda
Which of the following is not a characteristic of magnets?
- They have two poles
- They attract ferrous materials
- They always repel each other
- They create a magnetic field
Pertanyaan 16
Pilihan ganda
Which scientist is known for his study of electromagnetism?
- Isaac Newton
- Albert Einstein
- Michael Faraday
- Charles Darwin
Pertanyaan 17
Pilihan ganda
What is the unit of magnetic flux density?
- Tesla
- Newton
- Joule
- Coulomb
Pertanyaan 18
Pilihan ganda
Which application uses magnets to read and write data?
- Refrigerators
- Speakers
- Hard drives
- Light bulbs
Pertanyaan 19
Pilihan ganda
If like poles of two magnets are brought close to each other, what happens?
- They attract
- They repel
- They rotate
- They neutralize
Pertanyaan 20
Pilihan ganda
What is the effect of increasing the number of coils in an electromagnet?
- Decreases magnetic field strength
- Increases magnetic field strength
- No effect
- Reverses polarity
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