Question

GRADE: 9
PERIOD: V
TOPICS: MAGNETISM AND ELECTRICITY
LEARNING
OUTCOMES
OBJECTIVES CONTENTS ACTIVITIES MATERIALS /
RESOURCES
COMPETENCIES/
ASSESSMENT
Learners are able
to:
Apply skills in
electronics and
electricity to solve
problems using SI
Units.
Upon completion
of this topic,
learners will:
1. Discuss the
causes of
magnetism and
its properties
2. State
electrostatic
laws; and
discuss static
electricity and
how it is
produced
3. Describe the
effects of
current
electricity on
both metallic
and non-
metallic
substances,
1. Magnetism:
a) Causes
b) Properties
c) Magnetic field
d) Magnetic field
production
2. Types of magnets:
a) Horse-shoe
b) Bar
c) Electro-magnets
d) The Graham bell
3. Compass: - Uses
4. Motor and Dynamo:
5. Effect of lightning and
thunder on electrical
appliances
6. Electric Current:
a) Types
including
aqueous
solutions
4. State the
difference
between direct
and alternating
current
5. Explain how
current
electricity is
measured
6. Identify fuse
and circuit-
breaker in an
electric circuit
and explain
their functions
and
7. Demonstrate
electrolysis.
b) Effects on metals
and non-metals
7. Measurement of
electric current
8. Ohm’s Law
9. The S.I. Units
10.Types of transformers:
a) Step-up
b) Step-down
11.Circuits:
a) Series
b) Parallel
12.Circuit breakers and
fuses
Electrolysis
include the steps by step solving problems under every topic provided

Answer 1

### GRADE 9 LESSON PLAN: MAGNETISM AND ELECTRICITY

#### PERIOD: V

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### LEARNING OUTCOMES
**Age-appropriate skills in electronics and electricity will be applied to solve problems using SI Units.**

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### OBJECTIVES
Upon completion of this topic, learners will:
1. Discuss the causes of magnetism and its properties.
2. State electrostatic laws and discuss static electricity and production methods.
3. Describe the effects of current electricity on both metallic and non-metallic substances.
4. State the difference between direct and alternating current.
5. Explain how current electricity is measured.
6. Identify fuses and circuit breakers in electric circuits and explain their functions.
7. Demonstrate electrolysis.

---

### CONTENTS

1. Magnetism:
- Causes
- Properties
- Magnetic field
- Magnetic field production

2. Types of Magnets:
- Horse-shoe
- Bar
- Electro-magnets
- The Graham bell

3. Compass: Uses

4. Motor and Dynamo

5. Effect of lightning and thunder on electrical appliances

6. Electric Current:
- Types (including aqueous solutions)
- Effects on metals and non-metals

7. Measurement of Electric Current

8. Ohm’s Law

9. The S.I. Units

10. Types of Transformers:
- Step-up
- Step-down

11. Circuits:
- Series
- Parallel

12. Circuit Breakers and Fuses

13. Electrolysis

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### ACTIVITIES

1. **Discussion**:
- Magnetism: Discuss causes (e.g., magnetic materials, electron spins).
- Properties: Discuss examples (e.g., attraction/repulsion of magnets).

2. **Hands-on Activity**:
- Create a simple electromagnet using a battery, wire, and nail.

3. **Conduct Experiments**:
- Measure the effects of current electricity on different metals vs. non-metals.

4. **Visual Aid**:
- Show diagrams of series and parallel circuits.

5. **Demonstration**:
- Show how to use a multimeter to measure current.

6. **Group Work**:
- Group discussions on the implications of electrical safety with circuit breakers and fuses.

7. **Practical Demonstration**:
- Perform an electrolysis experiment using water and salt.

8. **Problem-solving Sessions**:
- Step-by-step solving of problems related to Ohm's Law and circuits.

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### MATERIALS / RESOURCES
- Magnets (Bar, Horse-shoe, Electro-magnet)
- Batteries and wires
- Nails for electromagnet assembly
- Multimeters for current measurement
- Circuit diagrams (printed or projected)
- Water, salt, and electrolysis apparatus (for the demonstration)
- Safety equipment (gloves, goggles)
- Interactive simulation software for electricity and magnetism

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### COMPETENCIES / ASSESSMENT

1. **Quizzes and Tests**:
- Assess knowledge on the causes and properties of magnetism, static electricity, and current electricity.

2. **Practical Assessments**:
- Observe students during experiments and practical demonstrations.

3. **Problem-solving Exercises**:
- Provide scenarios where students apply Ohm's Law and circuit calculations.

4. **Group Projects**:
- Assess teamwork in designing a practical project related to electricity or magnetism.

5. **Reflective Journals**:
- Have students document their learning experience and reflect on practical applications.

6. **Presentation**:
- Ask groups to present their findings on a chosen topic related to magnetism or electricity.

7. **Safety Assessment**:
- Evaluate knowledge of safety precautions when handling electrical components.

8. **Final Assessment**:
- A cumulative test or project encompassing all topics covered.

### STEP-BY-STEP PROBLEM SOLVING (Examples)

1. **Ohm’s Law Problem**
- Given Voltage (V) = 12 Volts and Resistance (R) = 3 Ohms, find the Current (I).
- Formula: I = V/R.
- Solution: I = 12V / 3Ω = 4A.

2. **Circuit Calculation**
- In a series circuit with three resistors (R1 = 2Ω, R2 = 3Ω, R3 = 5Ω), calculate the total resistance (R_total).
- Formula: R_total = R1 + R2 + R3.
- Solution: R_total = 2Ω + 3Ω + 5Ω = 10Ω.

3. **Electrolysis Problem**
- Calculate the amount of hydrogen gas produced when 2A current is passed through water (H2O) for 5 minutes (using Faraday’s Law).
- Use the formula for electrolysis: Amount = (Current × Time) / (n × F).
- Where F (Faraday constant) ≈ 96500 C/mol and n for H2 = 2.
- Calculate the final result.

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This structured approach ensures that learners gain a comprehensive understanding of magnetism and electricity, developing both theoretical knowledge and practical skills.