RBSE Solutions Class 9 Physical Education Chapter 2 Human Body Growth and Development

Multiple Choice Questions

Question 1. Process of Development proceeds from:
(a) Simple to complex.
(b) Complex to simple.
(c) Ordinary to ordinary.
(d) Specific to specific.
Answer: (a) Simple to complex.
In simple words: Development always moves from simpler actions or understandings to more complicated ones. For instance, a child first learns to crawl, then walk, and then run.

🎯 Exam Tip: Remember that development is a step-by-step process that builds from basic skills to more advanced abilities.

Question 2. Adolescence changes are:
(a) faster in boys than in girls.
(b) similar in boys and girls.
(c) faster in girls than in boys.
(d) visible only in girls
Answer: (c) faster in girls than in boys.
In simple words: During teenage years, girls often start showing physical changes like growing taller earlier than boys do. This means their bodies change faster at the beginning of adolescence.

🎯 Exam Tip: Keep in mind the general patterns of adolescent growth spurts, where girls typically experience them earlier than boys.

Question 3. One of the principles affecting development is:
(a) Running
(b) Sleeping
(c) Walking
(d) Heredity and Environment
Answer: (d) Heredity and Environment.
In simple words: How a person grows and changes is greatly shaped by what they get from their parents (heredity) and everything around them (environment). Both play a big part in how we develop.

🎯 Exam Tip: Understand that development is a complex interplay of internal (heredity) and external (environment) factors, not just daily activities.

Short Answer Type Questions

Question 1. What are the gender effects in the process of growth and development?
Answer: At birth, baby boys are usually taller than baby girls. However, from around 10 to 11 years of age, girls tend to grow faster than boys, and their physical appearance is quite similar during this time. As children reach adolescence, clear differences start to appear in their body structure and behaviour based on their gender. These changes are part of their natural physical maturation.
In simple words: Boys are usually taller when born. Girls grow faster around age 10-11, then in teenage years, boys and girls show clearer physical and behaviour differences.

🎯 Exam Tip: When discussing gender differences in growth, remember to mention the initial phase (birth), the middle phase (pre-adolescence), and the adolescent phase for a complete answer.

Question 2. Write any three differences between growth and development?
Answer:
1. Growth refers to changes in quantity, like an increase in size, shape, height, or weight. Development, on the other hand, is qualitative, involving improvements in strength, stamina, and overall efficiency.
2. Growth stops when a person reaches maturity, but development is a lifelong process that continues throughout life, as new skills and experiences are always being gained.
3. Growth is one part of the wider process of evolution, showing physical changes. Development includes all kinds of changes in a person, including physical, mental, and social aspects.
In simple words: Growth is about getting bigger, like height or weight, and it stops at maturity. Development is about getting better, like stronger or smarter, and it continues forever.

🎯 Exam Tip: Clearly distinguish between quantitative (growth) and qualitative (development) aspects, and emphasize the finite nature of growth versus the continuous nature of development.

Question 3. What does development mean?
Answer: Development is a natural process where gradual changes happen in a specific order over time. Child development is a field of study that looks at how children change as they grow, covering things like learning to speak, sit, walk, read, and write. It's a journey of continuous improvement.
In simple words: Development means changes that happen slowly over time in a fixed way. For children, it means learning to do new things like talk and walk.

🎯 Exam Tip: Define development as a progressive and directional process, and provide examples of skills children acquire as they develop.

Question 4. What are the characteristics of adolescence?
Answer: Characteristics of adolescence are as follows:
3. Puberty: During this stage, boys are often more interested in sexual matters than girls.
4. Overpowered by emotions: Teenagers often experience sudden and strong emotions like insecurity, fear, anger, and worry. They also tend to be adventurous and like to try new things.
In simple words: Adolescence includes puberty where boys have more sexual urges. Teenagers also feel many strong emotions like fear or anger, and they like to try exciting things.

🎯 Exam Tip: Focus on both the physical (puberty) and emotional (mood swings, desire for adventure) aspects that are key to the adolescent phase.

Question 5. What does the term Growth imply?
Answer: Growth refers to the increase in the size and shape of body parts, along with increases in height and weight. It also includes the growth of muscles, bones, and the making of blood. This entire growth process starts when a baby is formed in the womb and continues until the person reaches full maturity.
In simple words: Growth means getting bigger in size, height, and weight. It includes muscles, bones, and blood. It starts before birth and stops when a person becomes an adult.

🎯 Exam Tip: When defining growth, ensure you specify that it's quantitative, involves physical attributes, and has a clear beginning and end point (maturity).

Long Answer Type Questions

Question 1. Which are the principles or basis of development? Explain them with the help of an example.
Answer: Principles of development are as follows:
1. It has its uniqueness: Every person develops in their own special way.
2. It is based on heredity and environment: Development is shaped by genes from parents and the surroundings a person lives in.
3. It proceeds from simple to complex: Skills develop from easy to harder ones, like learning to stand before running.
4. It takes place constantly and unabated: Development is a continuous process that never stops.
5. It is faster in the early phases of life: Babies and young children grow and learn very quickly.
6. Individual differences influence development: Each person develops at their own speed and in their own way.
7. It is a wholesome process: Development includes growth in all areas - physical, mental, and social.
8. Rate of development differs from person to person: Not everyone develops at the same speed.
Applying these principles to players: A player's development is special and unique. It is influenced by their genes and environment. First, they learn the basic rules of a game, then move on to more complex skills. Players keep developing physically, mentally, socially, and emotionally until they reach their best. Some players succeed faster than others, which can be predicted early on by looking at their natural talents, interests, focus, and dedication.
In simple words: Development has rules like: everyone is unique, genes and surroundings matter, it goes from simple to hard, it never stops, it's fast when young, and everyone develops at a different speed. For players, this means they learn basic skills first, then harder ones, and their natural talent helps predict their success.

🎯 Exam Tip: List the principles clearly and ensure each one is briefly explained, then use the example of a player to illustrate how these principles apply in a practical context.

Question 3. What are the phases of Development? Explain them briefly.
Answer: Phases of development are as follows:
1. Infancy (0-3 years): Its characteristics are:-
1. Very fast development of size, shape, weight, height along with mental, social, and emotional behaviour.
2. The child is fully dependent on others.
3. The child is very selfish and shows unsocial behaviour.
4. The child wants everything for himself/herself without considering needs of others.
2. Childhood (6 to 12 years): Its characteristics are:
1. The child grows and develops at slow rate.
2. The child starts feeling pleasure in handling his/her own needs.
3. The child starts socialising by sharing his/her toys with others.
4. The child starts expressing his/her emotions to the society and learns to balance and control his/her emotions.
3. Adolescence (12 to 20 years): Its characteristics are:-
followers of love.
4. They are overpowered by emotions and want to do something adventurous.
4. Adulthood (21 to 40 years): Its characteristics are:-
1. At this stage, a person accepts responsibilities.
2. They make their own decisions.
3. Inner conflicts are reduced.
In simple words: Development happens in stages. Infancy (0-3 years) has fast growth, and babies depend on others. Childhood (6-12 years) has slower growth, and children learn to share and manage feelings. Adolescence (12-20 years) involves strong emotions and adventure. Adulthood (21-40 years) is about taking on responsibilities and making own choices.

🎯 Exam Tip: Clearly define the age ranges for each developmental phase and list key characteristics for each, focusing on physical, emotional, and social aspects.

Question 4. Which factors influence growth and development?
Answer: Factors influencing growth and development are as follows:
1. Heredity: The genes passed down from parents decide things like blood group, height, face shape, intelligence, and other behaviours.
2. Environment: Outside conditions like family life, clean water, and fresh air greatly affect a child's physical and mental health.
3. Food and nutrition: Eating the right amount of proteins, vitamins, carbohydrates, fats, and minerals is very important for a child's proper growth.
4. Diseases: Illnesses can slow down or stop a child's growth and development.
5. Gender effect: Usually, boys are taller than girls at birth. Girls grow faster than boys until they are about 10-11 years old.
6. Recreations: Activities that bring happiness, pleasure, love, and laughter help with mental and physical development.
7. Physical ailments: Any long-term physical problem can hinder mental, emotional, and social abilities.
8. Accidents: Accidents in early childhood can have long-lasting effects on development later in life.
In simple words: Growth and development are shaped by many things. These include what we get from our parents (genes), our surroundings (environment), the food we eat, and if we get sick. Our gender, fun activities, physical problems, and past accidents also play a role.

🎯 Exam Tip: Categorize factors into internal (heredity, gender) and external (environment, nutrition, diseases, recreation, ailments, accidents) to ensure comprehensive coverage.

Question 2. Generally with the growing age hardly any change is witnessed in the
(a) mental abilities
(b) emotional behaviour
(c) social effectiveness
(d) shape of an individual
Answer: (d) shape of an individual
In simple words: As people get older, their basic body shape usually doesn't change much, even though their abilities and feelings might keep developing.

🎯 Exam Tip: Focus on the idea that while internal attributes continue to evolve, the fundamental physical outline of a person remains largely constant in adulthood.

Question 3. Which of the following cannot forecast the success or failure of a player?
(a) Concentration
(b) Aptitude
(c) Interest
(d) Size
Answer: (d) Size
In simple words: A player's body size alone cannot tell if they will succeed or fail. Other things like how focused they are, their natural talent, and their interest matter more.

🎯 Exam Tip: Emphasize that while physical attributes can be a factor, mental and intrinsic qualities (concentration, aptitude, interest) are more crucial predictors of a player's long-term success.

Question 4. Which of the following does not influence growth and development?
(a) Intelligence
(b) Way to walk
(c) Recreations
(d) Heredity
Answer: (b) Way to walk
In simple words: How a person walks is a result of development, not something that causes it. Intelligence, fun activities, and what you get from your parents all affect how you grow.

🎯 Exam Tip: Distinguish between factors that *influence* development and actions that *result* from development. Walking style is an outcome, not a cause, of growth and development.

Question 4. Development leads to the evolution of
(d) Infancy
Answer: (a) mental awareness
In simple words: Development causes our minds to grow and become more aware of things around us, which is a key part of our personal evolution.

🎯 Exam Tip: Understand that development encompasses mental evolution, not just physical changes. Mental awareness is a strong indicator of this progress.

Short Answer Type Questions

Question 1. How can development be possible without growth?
Answer: It is possible for development to continue even without growth. For example, as a person gets older, their body weight, height, size, and shape might not change much. However, their physical and mental abilities, emotional responses, and social skills can still steadily improve. This shows that development is a continuous process of improving abilities, even when physical growth has stopped.
In simple words: Development can happen without growth. Even if your body stops getting bigger (growth), your mind, feelings, and social skills can still keep getting better (development).

🎯 Exam Tip: Highlight that development is a broader concept than growth, encompassing qualitative improvements that can occur independently of quantitative physical changes.

Question 2. What are the influence of vitamins in our growth, and development?
Answer: Vitamins are very important for boosting our body's energy and ability to fight off sickness. For example, Vitamin A is needed for good eyesight and healthy skin. Vitamin B helps keep our teeth and bones strong, making them less likely to break. Vitamin C is also very important for keeping our immune system strong, which helps us stay healthy.
In simple words: Vitamins make our bodies strong and healthy. Vitamin A helps our eyes and skin, Vitamin B helps our teeth and bones, and Vitamin C helps us fight sickness.

🎯 Exam Tip: When discussing vitamins, provide specific examples of each vitamin and its role to demonstrate a clear understanding of their influence.

Question 3. What are the characteristics of infancy?
Answer: During infancy (birth to 3 years), a child's body organs grow and develop very quickly. At this stage, the baby relies completely on others for care. They often behave in a very self-centered and unsocial way, wanting everything for themselves without much thought for others' needs. This is a natural part of early development.
In simple words: In infancy (0-3 years), babies grow very fast, depend on others for everything, and mostly care about their own needs.

🎯 Exam Tip: Focus on the rapid physical growth, complete dependence, and egocentric (self-focused) behaviour as key characteristics of infancy.

Question 4. Define development in the views of James Draver.
Answer: According to James Draver, development is a continuous process of progressive changes that happen in a living being. This process starts from the very beginning of life, at the time of conception, and continues all the way until adulthood. It is a journey of ongoing transformation.
In simple words: James Draver said development is a constant process of changes in a living thing, starting from when it is conceived until it becomes an adult.

🎯 Exam Tip: When citing a definition by an expert, ensure to capture the core elements: "constant process," "progressive changes," and "conception till adulthood."

Long Answer Type Questions

Question 1. What is the meaning of development? Explain how heredity, recreations, accidents and diseases affects growth and development?
Answer: Development is the natural process of gradual changes that occur in a specific, orderly direction. These changes are ongoing from birth to maturity.
Heredity: Genes passed from parents to children carry biological traits like blood group, facial features, height, weight, and mental abilities. These genes significantly influence a child's growth and development.
Recreations: Activities that bring happiness, pleasure, love, appreciation, and laughter help with mental development, which then influences physical development. On the other hand, boredom can be stressful and harm both mental and physical growth.
Accidents: Accidents, especially in childhood, can hinder a child's mental development. They also often lead to clear physical development problems.
Diseases: Any illness affects a person's physical development, which in turn directly impacts their mental abilities.
In simple words: Development means changes that happen slowly over time in a fixed way. Heredity (genes from parents) decides many traits. Fun activities help our minds grow. Accidents can slow down mental development. Sickness affects both physical and mental growth.

🎯 Exam Tip: Start with a clear definition of development, then provide specific examples for each factor (heredity, recreations, accidents, diseases) to show how they affect both growth and development.

Question 2. State four features of development and explain how growth is different in terms of these features of development?
Answer: Features of development are:
1. Development is qualitative: It involves changes in quality, such as improved strength or skill. Growth is quantitative, meaning it's about increases in size, height, or weight.
2. It is a gradual process of constant changes: Development happens slowly and continuously over time. Growth, however, eventually stops once maturity is reached.
3. It leads to the evolution of mental, emotional, and social effectiveness: Development improves a person's overall abilities in thinking, feeling, and interacting. Growth mainly shows changes in physical body parts or behaviour, but not necessarily in overall effectiveness.
4. It can only be scrutinised or inspected through specified techniques: Development is measured using specific tests, interviews, or observations. Growth is often clearly visible and can be measured directly, like with a weighing scale or measuring tape.
In simple words: Development is about improving qualities like skill, and it continues forever. Growth is about increasing size, and it stops at maturity. Development can only be checked with special methods, but growth is easily seen and measured.

🎯 Exam Tip: For each feature of development, draw a direct contrast with growth to clearly highlight the differences, using examples that illustrate the qualitative/quantitative distinction.