Grade 2 Standard 3 Unit Test A : Magnetism

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    What substance is attracted to a magnet?

    • Silver
    • Lead
    • Water
    • Iron
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About This Quiz

This quiz is for second grade students and is on the science subject involving magnets.

Grade 2 Standard 3 Unit Test A : Magnetism - Quiz

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  • 2. 

    How is Earth’s magnetic field similar to that of a magnet?

    • It has North and South Poles.

    • It is hundreds of miles long.

    • It is made in Earth's core.

    • It is shaped like a horseshoe.

    Correct Answer
    A. It has North and South Poles.
    Explanation
    The Earth's magnetic field is similar to that of a magnet because it also has North and South Poles. Just like a magnet, the Earth's magnetic field has a magnetic north pole and a magnetic south pole. This means that the Earth's magnetic field can attract or repel other magnetic objects, just like a magnet.

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  • 3. 

    What characteristics do magnetic substances have?

    • They can give a “shock” when you touch them.

    • They can push or pull objects they are not touching.

    • They are always black and cold to touch.

    • They fall faster than other objects when you drop them.

    Correct Answer
    A. They can push or pull objects they are not touching.
    Explanation
    Magnetic substances have the ability to exert a force on other objects without physical contact. This is known as magnetic attraction or repulsion. Unlike other objects, which require direct contact to exert a force, magnetic substances can attract or repel objects from a distance. This characteristic is due to the presence of a magnetic field around the substance, which interacts with the magnetic fields of other objects.

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  • 4. 

    What happens when two north poles of magnets are placed together?

    • They repel.

    • They attract.

    • They cancel each other out.

    • The strength of the magnet is doubled.

    Correct Answer
    A. They repel.
    Explanation
    When two north poles of magnets are placed together, they repel each other. This is because like poles of magnets, whether north or south, repel each other due to the magnetic force. This force pushes the two north poles away from each other, causing them to repel.

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  • 5. 

    Earth’s magnetic field and a bar magnet both attract particles to the same locations. Where are they?

    • The middle

    • All around the outside

    • The North and South poles

    • First to the middle, then to the ends

    Correct Answer
    A. The North and South poles
    Explanation
    The Earth's magnetic field and a bar magnet both have a north and south pole. These poles attract particles towards them, causing them to accumulate at the North and South poles. Therefore, the correct answer is the North and South poles.

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  • 6. 

    Ancient people discovered magnetic rocks called lodestone. What did they use them for?

    • To start fires

    • Compasses

    • Sculptures

    • Telephone receivers

    Correct Answer
    A. Compasses
    Explanation
    Ancient people discovered magnetic rocks called lodestone and used them for compasses. Compasses are navigational tools that use the Earth's magnetic field to determine direction. By suspending a piece of lodestone, it would align with the Earth's magnetic field and point towards the magnetic north. This allowed ancient people to navigate and explore the world more accurately, leading to advancements in trade, exploration, and travel.

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  • 7. 

    What is our best evidence that Earth has a magnetic field?

    • All things fall toward Earth's center.

    • A compass needle lines up with it.

    • Winds blow from east to west.

    • Earth's oceans all have currents.

    Correct Answer
    A. A compass needle lines up with it.
    Explanation
    The best evidence that Earth has a magnetic field is that a compass needle lines up with it. A compass needle is a small magnet that aligns itself with the Earth's magnetic field, indicating the presence of a magnetic field. This alignment allows people to navigate using compasses, which rely on the Earth's magnetic field to determine direction. The fact that a compass needle consistently aligns with the Earth's magnetic field provides strong evidence for the existence of a magnetic field surrounding the planet.

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  • Current Version
  • Feb 21, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Dec 07, 2010
    Quiz Created by
    Chastaneolee
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