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Information and communication technology
Class 10 · Physics · 8 questions
Name: ____________________ Date: ____________
ICT stands for:
- A Internal Circuit Test
- B Information and Communication Technology
- C Internet Control Terminal
- D Information Code Transfer
Radio waves used in communication are a type of:
- A Water waves
- B Electromagnetic waves
- C Seismic waves
- D Sound waves
Satellites orbiting at about 36000 km that appear fixed above a point are called:
- A Geostationary satellites
- B Weather balloons
- C Space probes
- D Polar satellites
Which of these is used to carry signals as light pulses?
- A Coaxial cable only
- B Rubber tube
- C Copper wire
- D Optical fibre
Which of these is a way of sending information using light?
- A Rope
- B Copper wire
- C Water pipe
- D Optical fibre
Mobile phones communicate using:
- A Sound waves
- B Gamma rays
- C Radio waves
- D X rays
Digital signals are represented by:
- A Sound
- B Colour
- C A continuous range
- D Two levels such as 0 and 1
The Internet is a network of:
- A Radios
- B Telephones only
- C Single computers only
- D Networks
Answer key
1. B, 2. B, 3. A, 4. D, 5. D, 6. C, 7. D, 8. D
ICT is Information and Communication Technology.
Radio waves are electromagnetic and can travel through a vacuum.
Geostationary satellites orbit once per day and stay above the same spot.
Optical fibres carry data as light by total internal reflection.
Pulses of light travel along the fibre.
They send signals as radio waves.
Digital signals use discrete levels.
It connects many networks worldwide.