NCERT Class 9 Physical education well-being Khel Praveen Chapter Wise Important Solutions and MCQs
Short Intro
This comprehensive study material covers important concepts from the Khel Praveen Physical Education book including muscles, joints, cardiorespiratory system, growth and maturation, and first aid. Detailed step-by-step solutions, formulas, MCQs, exam tips, FAQs, and explanations are included for better understanding and exam preparation.
Quick Information Box
| Category | Details |
|---|---|
| Subject | Physical Education and Well-being |
| Book | Khel Praveen |
| Topics Covered | Muscles, Joints, Respiration, Growth, First Aid |
| Useful For | School Exams, Viva, Assignments |
| Content Type | Solutions + MCQs + Notes |
| Language | Unicode English |
Concepts Used (Topics Covered)
- Tendons and Ligaments
- Types of Joints
- Types of Muscles
- Muscle Actions
- Force and Power
- Breathing and Respiration
- Heart and Blood Circulation
- Blood Pressure
- Effects of Exercise
- Growth, Development and Maturation
- First Aid Principles
- CPR and BLS
- Nosebleed Management
- Transfer Techniques
Important Formulas
Body Mass Index Formula
BMI helps calculate body fitness level.
BMI = Weight (kg) ÷ Height² (m²)
Power Formula
Power = Strength \times Speed
Cardiac Output Formula
Cardiac\ Output = Heart\ Rate \times Stroke\ Volume
Questions and Step-by-step Solutions
Chapter: Understanding Our Body
Question 1
What is a tendon?
Step-by-step Solution
Step 1
Understand the definition.
A tendon is a strong flexible tissue connecting muscles to bones.
Step 2
Understand its function.
It helps movement and absorbs impact during activities like running and jumping.
Final Answer
A tendon is a tough band of connective tissue that connects muscles to bones and helps in body movement.
Question 2
Differentiate between ligament and tendon.
Step-by-step Solution
| Tendon | Ligament |
|---|---|
| Connects muscle to bone | Connects bone to bone |
| Helps movement | Stabilizes joints |
| Flexible and tough | Strong and fibrous |
Final Answer
Tendons connect muscles to bones whereas ligaments connect bones to each other and stabilize joints.
Question 3
What are joints?
Step-by-step Solution
Step 1
Define joints.
Joints are places where two or more bones meet.
Step 2
Mention importance.
They help movement and provide stability.
Final Answer
A joint is the meeting point of two or more bones which allows movement and support.
Question 4
Name the types of synovial joints.
Step-by-step Solution
The six main synovial joints are:
- Ball and socket joint
- Hinge joint
- Pivot joint
- Gliding joint
- Saddle joint
- Condyloid joint
Final Answer
Synovial joints include ball and socket, hinge, pivot, gliding, saddle, and condyloid joints.
Question 5
What are skeletal muscles?
Step-by-step Solution
Step 1
Understand the structure.
These muscles are attached to bones.
Step 2
Understand the function.
They help voluntary movement and maintain posture.
Final Answer
Skeletal muscles are voluntary muscles attached to bones that help body movement and posture.
Question 6
Explain concentric and eccentric muscle action.
Step-by-step Solution
| Concentric | Eccentric |
|---|---|
| Muscle shortens | Muscle lengthens |
| Example: Bending elbow | Example: Straightening elbow |
Final Answer
Concentric action shortens the muscle while eccentric action lengthens the muscle under tension.
Chapter: Cardiorespiratory System
Question 7
Differentiate between breathing and respiration.
Step-by-step Solution
| Breathing | Respiration |
|---|---|
| Physical process | Chemical process |
| Takes place in lungs | Takes place in cells |
| Involves inhaling and exhaling | Produces energy |
Final Answer
Breathing is the process of taking in oxygen and releasing carbon dioxide, while respiration is the cellular process of producing energy.
Question 8
What is cardiac output?
Step-by-step Solution
Cardiac output means the amount of blood pumped by the heart in one minute.
Formula
Cardiac\ Output = Heart\ Rate \times Stroke\ Volume
Final Answer
Cardiac output is the quantity of blood pumped by the heart every minute.
Question 9
What are the functions of arteries and veins?
Step-by-step Solution
Arteries
- Carry blood away from the heart
- Thick walls
- High pressure
Veins
- Carry blood toward the heart
- Thin walls
- Low pressure
Final Answer
Arteries carry blood away from the heart while veins carry blood back to the heart.
Question 10
What changes occur during exercise?
Step-by-step Solution
During exercise:
- Heart rate increases
- Breathing becomes faster
- Blood flow to muscles increases
- Oxygen demand rises
Final Answer
Exercise increases heart rate, breathing rate, circulation, and oxygen consumption.
Chapter: Growth, Development and Maturation
Question 11
Define growth.
Step-by-step Solution
Growth refers to increase in body size, height, and weight.
Final Answer
Growth is the measurable increase in body dimensions and structure.
Question 12
Define development.
Step-by-step Solution
Development means improvement in behavior, skills, and functioning.
Final Answer
Development is the qualitative improvement in body function, behavior, and abilities.
Question 13
Define maturation.
Step-by-step Solution
Maturation is the process through which the body reaches adulthood and full functional ability.
Final Answer
Maturation is the biological progression toward complete physical and functional maturity.
Question 14
What factors affect growth and development?
Step-by-step Solution
Factors include:
- Heredity
- Nutrition
- Hormones
- Physical activity
- Environment
- Emotional health
- Lifestyle
Final Answer
Growth and development are influenced by genetic, environmental, nutritional, hormonal, and lifestyle factors.
Chapter: First Aid
Question 15
What is First Aid?
Step-by-step Solution
Step 1
Understand the meaning.
First Aid is immediate care given before medical help arrives.
Step 2
Understand its purpose.
It helps preserve life and prevent worsening.
Final Answer
First Aid is the immediate temporary care provided to an injured or ill person before professional treatment.
Question 16
Explain the PRICE principle.
Step-by-step Solution
| Letter | Meaning |
|---|---|
| P | Protection |
| R | Rest |
| I | Ice |
| C | Compression |
| E | Elevation |
Final Answer
PRICE is a first aid method used for soft tissue injuries to reduce pain and swelling.
Question 17
What are the Three Ps of First Aid?
Step-by-step Solution
- Preserve Life
- Prevent Worsening
- Promote Recovery
Final Answer
The Three Ps of First Aid are Preserve Life, Prevent Worsening, and Promote Recovery.
Question 18
What is CPR?
Step-by-step Solution
CPR stands for Cardiopulmonary Resuscitation.
It helps restore breathing and blood circulation during emergencies.
Final Answer
CPR is an emergency lifesaving procedure used when breathing or heartbeat stops.
Common Mistakes
- Confusing respiration with breathing
- Mixing tendon and ligament functions
- Forgetting the steps of PRICE and CPR
- Ignoring warm-up and cool-down exercises
- Writing incomplete definitions in exams
Exam Tips
- Learn all diagrams and definitions properly.
- Revise differences between important terms.
- Practice writing stepwise answers.
- Remember formulas and examples.
- Focus on tables for quick revision.
Practice MCQs
1. Which tissue connects muscle to bone?
A. Ligament
B. Cartilage
C. Tendon
D. Joint
Answer
C. Tendon
2. Which joint allows movement in all directions?
A. Hinge joint
B. Pivot joint
C. Ball and socket joint
D. Saddle joint
Answer
C. Ball and socket joint
3. Which muscle is involuntary?
A. Skeletal muscle
B. Smooth muscle
C. Biceps
D. Triceps
Answer
B. Smooth muscle
4. What is the normal adult resting heart rate?
A. 20–30 bpm
B. 40–50 bpm
C. 70–80 bpm
D. 120–140 bpm
Answer
C. 70–80 bpm
5. What does CPR stand for?
A. Cardio Pulse Recovery
B. Cardiopulmonary Resuscitation
C. Cardiac Pressure Recovery
D. Cardio Physical Response
Answer
B. Cardiopulmonary Resuscitation
FAQ Section
1. What is the function of tendons?
Tendons connect muscles to bones and help movement.
2. Why are joints important?
Joints help movement and maintain body stability.
3. What is the difference between growth and development?
Growth refers to physical increase while development refers to improvement in function and behavior.
4. Why is breathing faster during exercise?
The body needs more oxygen during physical activity.
5. What is the aim of first aid?
To preserve life, prevent worsening, and promote recovery.
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