Olympiad Test Level 2: Science and Technology - 1 - Class 4 MCQ

Dr. Vikram Sarabhai is known as the “Father of Indian Space Programme”. He was an Indian Physicist and Astronomer. He initiated the Space Research and Nuclear Power development in India.

Joseph F. Engelberger is known as the “Father of the Robotics”. Robotics technology has positive influence on our lives. It has improved the efficiency at work places and improved safety levels.

Touch screen is the only device which works as an input and output device. Podium microphones (Mic) are input devices. Light pen is used to write on directly on the screen, hence it is an input device. Woofer speaker works as an output device.

Motor Car was invented by Karl Benz. It is also known as "Vehicle powered by a gas engine". Karl Benz is also known as Father of Automobile.

Christian Huygens invented the pendulum clock in 1656. It was a major advancement in timekeeping, as the pendulum provided more accurate time measurement than previous clocks.

The dynamo was invented by Michael Faraday, not Galileo. Galileo contributed to many areas of science but did not invent the dynamo. The other matches are correct:

• Jet Engine - Whittle (Sir Frank Whittle is known for inventing the jet engine).
• Gravity - Newton (Isaac Newton formulated the law of gravity).
• Diesel Engine - Rudolf Diesel (Rudolf Diesel invented the diesel engine).

Marie Curie discovered elements- Radium and Polonium. She won Nobel Prize in Chemistry in 1911. Her pioneering research in radioactivity contributed significantly to cancer treatments, particularly through radiation therapy.

Plasma is the most common state of matter in the universe, making up stars, including the Sun, and interstellar matter. However, on Earth, we typically encounter solids, liquids, and gases, with plasma being rare under normal conditions.

Archimedes of Syracuse was an ancient Greek mathematician, physicist, engineer, inventor, and astronomer. He discovered the relation between the surface and volume of a sphere.

Printers are output device. They are used to print documents, images, etc.