Exploring Magnets and Technology

What are the two poles of a magnet called?

• Positive Pole and Negative Pole

• Top Pole and Bottom Pole

• North Pole and South Pole

• East Pole and West Pole

What happens when you bring two like poles of a magnet together?

• The magnets repel each other.

• The magnets spin around each other.

• The magnets do nothing.

• The magnets attract each other.

Name a material that is attracted to magnets.

• Wood

• Copper

• Iron

• Plastic

How do magnets help in recycling?

• Magnets help in recycling by cooling down the materials.

• Magnets are used to enhance the color of recycled products.

• Magnets are used to increase the weight of recyclable materials.

• Magnets help in recycling by separating ferrous metals from other materials.

What is the term for the area around a magnet where magnetic forces can be felt?

• magnetic field

• magnetic aura

• magnetic zone

• magnetic core

How do magnets work in electric motors?

• Magnets only work when the motor is turned off.

• Electric motors do not use magnets at all.

• Magnets create a magnetic field that interacts with the magnetic field generated by electric current in coils, producing motion.

• Magnets repel each other, causing the motor to stop.

What is one common use of magnets in everyday life?

• Refrigerator door seals

• Magnetic jewelry clasps

• Magnetic paint for walls

• Magnetic phone chargers

What is the difference between a permanent magnet and a temporary magnet?

• A permanent magnet can be turned on and off, whereas a temporary magnet cannot.

• A permanent magnet is made of iron, while a temporary magnet is made of steel.

• A permanent magnet retains its magnetism, whereas a temporary magnet loses its magnetism when the external field is removed.

• A permanent magnet is always larger than a temporary magnet.

How can magnets be used in technology to store data?

• Magnets are used in technology to create visual displays.

• Magnets are used to power devices like smartphones.

• Magnets can only store data in solid-state drives.

• Magnets are used in technology to store data in devices like hard disk drives and magnetic tapes by encoding data through magnetic fields.

Why is it important to keep magnets away from electronic devices?

• Magnets can enhance the performance of electronic devices.

• Magnets are essential for the functioning of all electronic devices.

• Keeping magnets near devices improves their battery life.

• It is important to keep magnets away from electronic devices to prevent interference and potential damage.