Class-7th Computer Chapter- 8 Robotics

 Chapter 8: Robotics

Checkpoint (Pg. 136)

Write T for True and F for False.

1. F

2. F

3. T

4. F

Exercises (Pgs. 144-146)

A. Tick (✓) the correct answers.

1. b

2. b

3. a

4. b

5. b

B. Fill in the blanks.

1. robotics

2. Sensors

3. Exoskeleton

4. Isaac Asimov

5. replace

C. Write T for True and F For False.

1. T

2. F

3. F

4. F

5. F

A.     Answer the following questions in short.

Q.1    What is robot ? 

Ans:-    A robot is a programmable machine designed to perform tasks automatically or with minimal human control. Robots can sense their environment, process information, and carry out actions, often used in industries, medicine, and daily life.

Q.2    Name three humanoid robot ? 

Ans:-  Sophia, Geminoid, and Atlas are examples of humanoid robots designed to resemble and interact like humans

Q.3    What is Elektro ? 

Ans:-    Elektro was the first speaking humanoid robot by Westinghouse Corporation in USA 

Q.4    Name India's first humanoid robot . 

Ans:-    India’s first robot is MANAV, a humanoid robot developed in India.

B. Answer the following question in long. 

Q.1    What is robotics ? Explain the significance of robotics in everyday life. 

Ans:-    Robotics is a field of technology that deals with creating and using robots. Robots are used in agriculture, environmental studies, and education to improve efficiency, collect data, reduce human effort, and help students learn coding and problem-solving in an interactive way.

Q.2    What are the key components of robots ? 

Ans:-    The key components of robots are:

1. Controller / CPU: The brain of the robot that processes information and sends commands.

2. Sensors: Detect changes in the environment (e.g., light, temperature, distance).

3. Actuators / Motors: Enable movement or action (wheels, arms, joints).

4. End Effectors: Tools or hands that interact with objects (grippers, welding tools).

5. Power Supply: Provides energy to operate the robot (batteries, electricity).

6. Software / Programming: Instructions that control the robot’s behavior and decision-making.

Q.3    Explain the three laws of Robotics formulated by Isaac Asimov. 

Ans:-    The Three Laws of Robotics were formulated by Isaac Asimov to ensure safe and ethical behavior of robots:

First Law:- A robot must not harm a human or, through inaction, allow a human to be harmed.

Second Law:- A robot must obey orders given by humans, unless such orders conflict with the First Law.

Third Law:- A robot must protect its own existence, as long as this does not conflict with the First or Second Law.

These laws priority to human safety first, then obedience, and finally self-preservation.

Q.4    State three advantages and disadvantages of robotics . 

Ans:-    Advantages of Robotics:

1. Increased Efficiency: Robots can work faster and continuously without fatigue.

2. Accuracy and Precision: Robots perform tasks with high consistency and minimal errors.

3. Safety: Robots can handle dangerous or hazardous tasks, protecting humans.

Disadvantages of Robotics:

1. High Cost: Designing, building, and maintaining robots is expensive.

2. Job Loss: Automation can reduce the need for human labor.

3. Limited Flexibility: Robots struggle with tasks requiring creativity or human judgement.

Activity Hub (Pg. 146)

Solve these riddles.

1. Drone

2. Robot

3. Humanoid Robot