Class 6 Science Chapter 10 Important Question Answers - Fun with Magnets

Very Short Answer Type Questions

Q1: What are magnets primarily made of?
Ans: Magnets are primarily made of iron or other materials that exhibit magnetism.

Q2: Who is credited with the discovery of magnets in Magnesia, Greece?
Ans: A Greek shepherd named Magnes is credited with the discovery of magnets in Magnesia, Greece.

Q3: What are the two poles of a magnet called?
Ans: The two poles of a magnet are called the north pole (N) and the south pole (S).

Q4: Do magnetic poles exist singly or in pairs?
Ans: Magnetic poles always exist in pairs and cannot be separated.

Q5: What happens when like poles of two magnets are brought close to each other?
Ans: Like poles of two magnets repel each other.

Q6: What is the purpose of a magnetic compass?
Ans: A magnetic compass is used to find directions by aligning itself with the Earth's magnetic field.

Q7: What is the significance of the red tip on a magnetic compass needle?
Ans: The red tip of a magnetic compass needle indicates the north pole of the magnet.

Q8: How can an iron bar be turned into a magnet artificially?
Ans: An iron bar can be turned into a magnet by rubbing a bar magnet over it repeatedly.

Q9: Name one precaution to protect magnets from losing their magnetic properties.
Ans: One precaution is to never heat a magnet.

Q10: What items should be kept away from magnets to prevent damage?
Ans: Items such as CD's, DVD's, debit cards, credit cards, audio and video cassettes, and mobile phones should be kept away from magnets to prevent damage.

Short Answer Type Questions

Q11: Explain the history of the discovery of magnets, including the role of Magnes in Magnesia, Greece.
Ans: Magnets were discovered when a Greek shepherd named Magnes found that his iron stick got stuck to a magnetic rock in Magnesia, Greece. The rock, called lodestone, had magnetic properties and led to the term "magnetite."

Q12: Discuss the properties of magnets, including their ability to attract certain materials and the existence of magnetic poles.
Ans: Magnets attract materials containing iron, cobalt, and nickel. They have two poles, north and south, which always exist in pairs. Like poles repel, and unlike poles attract each other.

Q13: Explain how a magnetic compass works and its significance in navigation.
Ans: A magnetic compass uses a magnetic needle that aligns itself with the Earth's magnetic field, pointing to the north. This is significant for navigation, as it helps determine directions.

Q14: Describe the process of turning an iron bar into a magnet artificially using a bar magnet.
Ans: To turn an iron bar into a magnet, rub a bar magnet along its length repeatedly in the same direction. This aligns the iron atoms, making it magnetic.

Q15: What precautions should be taken to protect magnets from losing their magnetic properties, and why is this important?
Ans: Precautions include not dropping, heating, or hammering magnets and keeping magnetic materials like CDs and mobile phones away. This is important to maintain the magnet's functionality.

Long Answer Type Questions

Q16: Explain the concept of magnetism and how magnets produce a magnetic field.
Ans: Magnetism is the property of attracting certain materials. Magnets produce a magnetic field by aligning the spinning electrons in their atoms, creating a field that can attract or repel.

Q17: Discuss the various types of magnets and their applications in everyday life.
Ans: Various types of magnets include natural magnets, artificial magnets (e.g., horseshoe, bar, cylindrical), and electromagnets. They are used in compasses, motors, MRI scanners, and more.

Q18: Explain the law of magnets, including the behavior of like and unlike poles.
Ans: The law of magnets states that like poles repel each other, and unlike poles attract each other. This behavior governs the interactions between magnets.

Q19: Describe the construction and working principle of a magnetic compass, including its historical significance.
Ans: A magnetic compass consists of a magnetic needle that aligns with Earth's magnetic field, pointing north. It is significant for navigation, aiding sailors and explorers throughout history.

Q20: Discuss the importance of magnets in modern technology and everyday life, giving examples of their applications.
Ans: Magnets are vital in modern technology, used in electric motors, MRI machines, credit card strips, and more. They simplify and improve various aspects of everyday life.