Static Electricity Worksheet and Answers for Educational Use

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🔹 Worksheet Title: Static Electricity

#### 1. Fill in the blanks
> "Use the words from the box to complete the gaps in the paragraph below."

Words provided (likely):
- static
- negative
- positive
- repel
- attract
- electrons
- protons
- neutral
- charge
- insulator
- conductor

Paragraph (reconstructed from context):
"______ electricity is caused when objects become charged by rubbing. The object which gains electrons becomes ______ charged. The object which loses electrons becomes ______ charged. When two objects with the same type of charge are brought close together, they ______ each other. When two objects with opposite charges are brought close together, they ______ each other."

Answer:
- Static electricity is caused when objects become charged by rubbing.
- The object which gains electrons becomes negatively charged.
- The object which loses electrons becomes positively charged.
- When two objects with the same type of charge are brought close together, they repel each other.
- When two objects with opposite charges are brought close together, they attract each other.

✔ Completed Paragraph:
"Static electricity is caused when objects become charged by rubbing. The object which gains electrons becomes negatively charged. The object which loses electrons becomes positively charged. When two objects with the same type of charge are brought close together, they repel each other. When two objects with opposite charges are brought close together, they attract each other."

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#### 2. Draw arrows between the pairs of particles to show how they will move when they are near each other.

We have 4 diagrams:

1. + and + → Repel → Arrow pointing away from each
2. + and – → Attract → Arrow pointing toward each other
3. – and – → Repel → Arrow pointing away from each
4. – and + → Attract → Arrow pointing toward each other

✔ Explanation:
Like charges repel, unlike charges attract.

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#### 3. Describe the movement of charged particles.

> "In the diagram below, draw arrows to show which way the electrons will move when the objects are rubbed."

Diagram likely shows:
A plastic rod being rubbed with a cloth.

Key concept:
When a plastic rod is rubbed with a cloth, electrons are transferred from the cloth to the rod.

- Plastic rod gains electrons → becomes negatively charged
- Cloth loses electrons → becomes positively charged

✔ Answer:
Electrons move from the cloth to the plastic rod.

👉 Draw arrow from cloth → rod.

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#### 4. Explain what happens when a charged object is brought near a neutral object.

This is about induction.

Example: A negatively charged rod is brought near a neutral metal sphere.

- Electrons in the sphere are repelled to the far side.
- The near side becomes positively charged (due to lack of electrons).
- So, the rod attracts the neutral object.

✔ Explanation:
When a charged object is brought near a neutral object, it causes a redistribution of charges in the neutral object (induction). Opposite charges are attracted to the nearby surface, causing attraction even though the object is neutral overall.

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✔ Final Answers Summary:

1. Fill-in-the-blanks:
- Static
- Negatively
- Positively
- Repel
- Attract

2. Arrows between charges:
- (+) and (+): ← → (repel)
- (+) and (–): → ← (attract)
- (–) and (–): ← → (repel)
- (–) and (+): → ← (attract)

3. Electron movement:
- Electrons move from the cloth to the plastic rod.

4. Charged object near neutral object:
- Charges in the neutral object are redistributed (induction).
- Opposite charges are attracted, so there is an attractive force.

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