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Question 1
This question is about the magnetic field around a bar magnet. |
a) | Describe how a student could identify the shape of a magnetic field around a bar magnet.
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b) | Draw the shape of the magnetic field around a bar magnet.
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c) | A student is investigating the properties of metallic and non-metallic materials. Which of the following is a magnetic material. A wood B iron C gold D aluminium
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Question 2
This question is about the magnetic field of a bar magnet. A student has drawn the field pattern around a bar magnet. |
a) | Draw two arrows on the diagram to show the direction of the magnetic field.
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b) | The student says the magnet is strongest along the long edge of the magnet because it has the largest surface area. Explain why the student is wrong.
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c) | Describe a method that the student could follow to test the strength of the pole compared to the side of the magnet.
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Question 3
This question is about magnetic fields. A student has drawn the magnetic field between two bar magnets. |
a) | Label the poles on the magnets.
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b) | A student wants to create a uniform magnetic field. Describe how the student could produce a uniform magnetic field.
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c) | Which of the following represents a uniform magnetic field between two bar magnets?
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Question 4
A student rubs the pole of the magnet up and down the iron nail for 1 minute. The student then uses the nail to attempt to pick up a small metallic pin. |
a) | Explain why the nail did not pick up the pin.
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The student now tries magnetising the iron nail by passing an electric current through the nail. The student varies the current and records how many pins the nail can pick up after being magnetised. The data recorded by the student is below. |
b) | Plot a graph of the student's results.
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d) | The student concludes that the higher the current, the greater the number of pins picked up. Evaluate the student's conclusion.
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Question 5
This question is about magnetism. Use the words from the box to complete the statements below. Words may be used multiple times, once or not at all. |
When two magnets with like poles are facing they will . When a north pole is placed near a south pole they will . The direction of magnetic field lines for a magnet is always from to . repel attract north south
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Question 6
A student draws the magnetic field around a bar magnet. There are some errors in the diagram. |
a) | List two errors that the student has made.
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b) | Sketch the correct magnetic field pattern around a bar magnet.
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c) | State where the magnetic field is strongest.
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Question 7
A student has an unlabelled bar magnet suspended on a thread. |
a) | Describe how the student could use a labelled bar magnet to identify which end of the bar magnet is north.
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b) | Explain why the suspended magnet spins when a magnet is nearby.
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c) | The student brings an iron bar close to the suspended magnet. The magnet rotates towards the metal bar. Explain what happens when the student turns the iron bar around so the other end faces the magnet.
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Question 8
This question is about magnetism. |
a) | Complete the table below by adding one tick per row.
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b) | Draw the magnetic field pattern produced between the two magnets below.
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Question 9
This question is about magnetism. A student holds a magnet above an iron ball bearing. The student wants to see how close the magnet will get before the ball bearing is attracted strongly enough that it will jump up to the magnet. |
a) | The mass of the iron ball bearing is 12 g. Calculate the weight of the ball bearing.
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b) | The table below shows how the force of attraction between the magnet and the ball bearing varies with distance. Model answer
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c) | Explain how close the magnet was before the ball bearing jumped up.
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d) | The student repeats the experiment with the pole of the magnet facing the ball bearing. The ball bearing jumped up to the magnet at a greater distance. Explain why.
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