Magnetic Pull Lesson Plans & Worksheets Reviewed by Teachers - Free Printable

It looks like you've uploaded an image of a worksheet titled "Magnetism" with several questions related to magnetic concepts. Since I can't view images directly, I’ll help you solve the problems based on the text you’ve provided or describe how to approach each question.

Let me reconstruct and answer the questions based on what’s typically found in such worksheets:

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Magnetism Worksheet – Answers & Explanations

#### 1. Fill in the blanks:
(a) The region around a magnet where its force is felt is called a *magnetic field*.
✔ Answer: Magnetic field
> *Explanation:* A magnetic field is the area around a magnet where magnetic forces act. It's represented by lines that show direction and strength.

(b) Magnets are made of *ferromagnetic* materials.
✔ Answer: Ferromagnetic
> *Explanation:* Materials like iron, nickel, and cobalt are ferromagnetic—they can be magnetized and are strongly attracted to magnets.

(c) Opposite poles of two magnets *attract* each other.
✔ Answer: Attract
> *Explanation:* North and south poles attract; like poles (N-N or S-S) repel.

(d) When a magnet is freely suspended, it points in the *north-south* direction.
✔ Answer: North-south
> *Explanation:* Earth itself acts as a giant magnet. A freely suspended magnet aligns with Earth’s magnetic field—its north pole points toward Earth’s magnetic south (near geographic north).

(e) In an unmagnetized state, the domains are *randomly oriented*.
✔ Answer: Randomly oriented
> *Explanation:* Domains are small regions within a material where atomic magnetic moments are aligned. In unmagnetized materials, these domains point in random directions, canceling each other out.

(f) In a magnetized state, the domains are *aligned*.
✔ Answer: Aligned
> *Explanation:* When magnetized, the domains align in the same direction, creating a net magnetic field.

(g) The space between the poles of a magnet is called *magnetic field lines*.
✔ Answer: Magnetic field lines
> *Explanation:* These invisible lines represent the direction and strength of the magnetic field.

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#### 2. Directions of Magnets:
This section likely includes diagrams showing compasses near a magnet. Here's how to interpret:

- (a) Draw the direction of the compass needle at point A:
→ Compass needle aligns with the magnetic field lines. The north end of the compass points in the direction of the field line.
- If the magnet has N on the left and S on the right, field lines go from N to S.
- So at point A, the compass needle will point toward the south pole (i.e., to the right).
> ✔ Answer: Needle points right (toward S pole)

- (b) Direction of the compass needle at point B:
→ Similar logic: follow the field lines.
- If point B is above the magnet, field lines curve upward and then down to S.
- Compass points along the tangent to the field line.
> ✔ Answer: Needle points downward and slightly to the right, following the curved field line.

*(Note: Without seeing the diagram, this assumes standard bar magnet orientation.)*

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#### 3. Unlike poles *attract* each other.
✔ Answer: Attract
> *Explanation:* Opposite poles (N and S) pull toward each other.

#### 4. Like poles *repel* each other.
✔ Answer: Repel
> *Explanation:* Two north or two south poles push away from each other.

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#### 5. Magnetic field lines:
(a) Magnetic field lines are *closed curves*.
✔ Answer: Closed curves
> *Explanation:* Field lines start at the north pole and end at the south pole outside the magnet, but continue through the magnet from S to N, forming loops.

(b) Magnetic field lines never *intersect*.
✔ Answer: Intersect
> *Explanation:* They don’t cross because the direction of the magnetic field at any point is unique.

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#### 6. Magnetic field lines around a bar magnet:
- Draw field lines: Start from the North pole, curve outward, and enter the South pole.
- Lines are closer together near the poles (stronger field), farther apart in the middle.
- Arrows on lines point from N to S outside the magnet.

> ✔ Answer: Sketch should show:
> - Curved lines from N to S
> - Dense near poles
> - No intersections
> - Arrows pointing from N → S

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#### 7. A magnet attracts objects made of *iron, nickel, cobalt*, etc.
✔ Answer: Iron, nickel, cobalt
> *Explanation:* These are ferromagnetic materials.

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#### 8. Repulsion between a magnet and another object indicates that the other object is *also a magnet*.
✔ Answer: Also a magnet
> *Explanation:* Only magnets can exert repulsive forces. Attraction can occur between a magnet and a magnetic material, but repulsion only happens between like poles of two magnets.

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#### 9. A magnetic compass needle points in the direction of the *magnetic field* at that point.
✔ Answer: Magnetic field
> *Explanation:* The compass aligns with Earth’s magnetic field lines.

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#### 10. The magnetic field lines of a bar magnet are *curved* lines that emerge from the *north* pole and enter the *south* pole.
✔ Answer: Curved, north, south
> *Explanation:* Field lines form continuous loops from N to S externally, and S to N internally.

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Final Notes:

If your worksheet has diagrams (like compasses or bar magnets), make sure to:
- Draw arrows on field lines from N to S.
- Show compass needles aligning with field lines.
- Use proper labeling: N and S poles.

Let me know if you'd like me to generate a visual explanation or help you draw the answers!