Physical Processes - Magnets And Springs

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Quizzes Created: 4 | Total Attempts: 3,563
| Attempts: 187
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  • 1/10 Questions

    Which of these objects would be attracted to a magnet?

    • A leather purse
    • A steel key
    • A wooden ruler
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  • 2. 

    Which two metals will be attracted by a magnet?

    • Iron and steel

    • Gold and silver

    • Aluminium and lead

    Correct Answer
    A. Iron and steel
    Explanation
    Iron and steel are attracted to magnets because they are ferromagnetic materials. This means that they have magnetic properties and can be magnetized. When a magnet is brought close to iron or steel, the magnetic field of the magnet causes the magnetic domains within the material to align, creating a temporary magnetic field in the iron or steel. This attraction between the magnet and the iron or steel allows them to be attracted to each other. Gold, silver, aluminium, and lead, on the other hand, are not ferromagnetic and therefore are not attracted to magnets.

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  • 3. 

    When two magnets repel each other, they ...

    • Push away from each other

    • Pull towards each other

    • Neither push nor pull

    Correct Answer
    A. Push away from each other
    Explanation
    When two magnets repel each other, it means that they exert a force on each other in such a way that they move away from each other. This is because like poles (either both north or both south) of magnets repel each other due to the magnetic field they create. This repulsion force causes the magnets to push away from each other.

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  • 4. 

    When two magnets attract each other, they ...

    • Push away from each other

    • Pull towards each other

    • Neither push nor pull

    Correct Answer
    A. Pull towards each other
    Explanation
    When two magnets attract each other, it means that they exert a force on each other that pulls them towards each other. This is because magnets have opposite poles (north and south), and opposite poles attract each other. Therefore, the correct answer is "pull towards each other".

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  • 5. 

    Magnet A can hold three steel paperclips; Magnet B can hold five. Which is the strongest?

    • Magnet A

    • Magnet B

    • They are both equally strong

    Correct Answer
    A. Magnet B
    Explanation
    Magnet B is the strongest because it can hold five steel paperclips, while Magnet A can only hold three. This indicates that Magnet B has a greater magnetic force or field strength, allowing it to attract and hold more paperclips than Magnet A. Therefore, Magnet B is the stronger magnet in this scenario.

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  • 6. 

    Magnetism is a type of ...

    • Electricity

    • Gravity

    • Force

    Correct Answer
    A. Force
    Explanation
    Magnetism is a type of force. It is the force exerted by magnets on certain materials, such as iron or nickel. This force can attract or repel other magnets or magnetic materials. The magnetic force is caused by the movement of electric charges within the magnets. It is different from electricity, which is the flow of electric charges through a conductor, and gravity, which is the force that attracts objects towards each other.

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  • 7. 

    Two magnets are placed next to each other and push (repel) each other apart. What is a possible explanation for this?

    • The north poles of both magnets are facing one another

    • One magnet is made of gold

    • The north pole of one magnet is facing the south pole of the other magnet

    Correct Answer
    A. The north poles of both magnets are facing one another
    Explanation
    When two magnets are placed next to each other, they will push or repel each other apart if their like poles are facing each other. This is because like poles repel each other due to the magnetic forces between them. In this case, if the north poles of both magnets are facing each other, they will repel each other and push apart.

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  • 8. 

    When you squash a spring down with your hand, you feel ...

    • An upward push on your hand

    • A downward push on your hand

    • No push or pull at all

    Correct Answer
    A. An upward push on your hand
    Explanation
    When you squash a spring down with your hand, you feel an upward push on your hand because the spring exerts a force in the opposite direction to the compression. This is due to Hooke's Law, which states that the force exerted by a spring is directly proportional to the distance it is compressed or stretched. As you push the spring down, it pushes back with an equal and opposite force, resulting in the sensation of an upward push on your hand.

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  • 9. 

    The more you squash or compress a spring down with your hand ...

    • The bigger the downward force on your hand

    • The smaller the upward force on your hand

    • The bigger the upward force on your hand

    Correct Answer
    A. The bigger the upward force on your hand
    Explanation
    When a spring is squashed or compressed down with your hand, the potential energy stored in the spring increases. As a result, the spring exerts an upward force on your hand. This is because the spring tries to return to its original shape and pushes against the force applied to it. Therefore, the more you squash or compress the spring, the bigger the upward force on your hand.

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  • 10. 

    The pushing or pulling force of a magnet is

    • Strongest in the middle of the magnet

    • Strongest at the ends of the magnet

    • The same all the way through the magnet

    Correct Answer
    A. Strongest at the ends of the magnet
    Explanation
    The correct answer is "strongest at the ends of the magnet" because the magnetic field lines are concentrated at the poles of a magnet. The magnetic force is strongest at the poles because the field lines are closer together, resulting in a stronger push or pull. In the middle of the magnet, the magnetic field lines are more spread out, leading to a weaker force.

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  • Current Version
  • Mar 22, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Feb 11, 2009
    Quiz Created by
    Walder
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