Class 5 Social Science - Transport and Communication - CBSE Worksheets Solutions - 2

Q1: Fill in the Blanks

(ii) The first means of long-distance communication was the use of ________.
Ans: Smoke signals

(iii) The fastest mode of transport is ________.
Ans: Airplane

(iv) A device used to send and receive signals for communication is called a ________.
Ans: Transmitter or Receiver

(v) A vehicle that travels on both land and water is called an ________.
Ans: Amphibious vehicle

(vi) The railway tracks are made of two parallel _________.
Ans: Rails

(vii) The system of roads, railways, and other means of transport within a country is known as (a) _______.
Ans: Transportation system

(viii) __________ is a device that helps ships and aircraft find their way.
Ans: Compass

(ix) The first jet-engine driven plane introduced in air service was Boeing 707 on _________. 
Ans: Oct 26, 1958

(x) _________ is a natural means of communication that uses sound to convey messages underwater.
Ans: Whale songs

Q2: MCQs (Multiple Choice Questions):

(ii) What is the primary use of a telephone?
(a) Watching videos
(b) Sending emails
(c) Long-distance communication
(d) Playing games
Ans: (c)
The telephone was initially invented for communicating over long distances, making voice conversations possible.

(iii) Which of the following is an example of air transport?
(a) Car
(b) Train
(c) Airplane
(d) Ship
Ans: (c)
Airplanes are a mode of air transport that can travel through the air, carrying passengers and goods.

(iv) Which of the following is not a natural means of communication?
(a) Smoke signals
(b) Drum beats
(c) Telephone
(d) Echoes
Ans: (c)
Telephone is an example of a man-made means of communication, not a natural one.

(v) What is the purpose of road signs?
(a) To decorate the roads
(b) To provide information about landmarks
(c) To guide and inform drivers
(d) To sell products
Ans: (c)
Road signs are installed to provide important information to drivers, ensuring safe and organized travel.

Q3: True or False

(ii) The invention of the wheel led to significant advancements in transportation.
Ans: True

(iii) Telecommunication involves sending messages using smoke signals.
Ans: False

(iv) Trains can only travel on tracks made of wood.
Ans: False

(v) A compass is a navigational instrument that helps in finding directions.
Ans: True

Q4: Match the Following:

Ans:

1. Telephone- D. Invented by Alexander Graham Bell
2. Telegraph- E. Communication using dots and dashes
3. Ship- B. Water transport
4. Airplane- A. Air transport
5. Television- C. Invented by John Logie Baird

Q5: Short Answer Questions:

(ii) How does a telephone work? Describe the basic process.
Ans: A telephone works by converting sound into electrical signals, which are transmitted through a network of wires. When you speak into the telephone, your voice creates vibrations that are transformed into electrical signals by a microphone. These signals travel through the telephone lines and are converted back into sound at the receiving end by a speaker, allowing the listener to hear the message.

(iii)  What is a compass, and how does it help in navigation?
Ans: A compass is a navigational instrument that helps in finding directions. It contains a magnetized pointer (usually a magnetic needle) that aligns itself with the Earth's magnetic field, indicating the magnetic north. This helps travelers determine their direction relative to the North Pole and navigate accurately.

(iv) Name three modern means of communication and explain their importance.
Ans: Three modern means of communication are:

• Internet: It allows instant sharing of information, documents, and multimedia across the globe through websites, emails, social media, etc.
• Mobile Phones: Mobile phones enable voice calls, text messages, and internet access, allowing people to communicate anytime and anywhere.
• Television: Television broadcasts news, entertainment, educational content, and more to a wide audience, visually conveying information.

(v) Describe the importance of road safety rules for pedestrians and drivers.
Ans: Road safety rules are crucial for both pedestrians and drivers to ensure their safety and the safety of others. Pedestrians should use crosswalks, obey traffic signals, and be cautious while crossing roads. Drivers must follow speed limits, use indicators, wear seat belts, and avoid distractions to prevent accidents and maintain road safety.