The ISRO LVM 3 lifts off on June 5, 2017, from Sriharikota.
| Photo Credit: S.R. Raghunathan/The Hindu
The Science Quiz seems twice every week within the each day science web page. The web page is accessible to learn on all days besides Saturday within the epaper.
Questions (solutions on the backside):
1. At its core, launching a rocket relies on Isaac Newton’s three legal guidelines of movement. Specify the system that describes the second legislation.
2. Name the Russian scientist who created the well-known supreme rocket equation, which describes how a car can speed up itself utilizing the legislation of conservation of momentum.
3. To hold a rocket from spiralling uncontrolled, its path of motion must be within the path of its ______. This is why many rockets have gimballed engines, which may be rotated in place. Fill within the clean.
4. The engine ‘Vikas’ powers the second stage of India’s Polar Satellite Launch Vehicle. It makes use of dinitrogen tetroxide as oxidiser and UDMH as gasoline. What is the chemical identify of UDMH?
5. A cryogenic engine is wanted for rockets as a result of it might combust liquid hydrogen, which has a really excessive ________ _______. Fill within the blanks with a time period describing how effectively the engine makes use of its gasoline mass.
Visual:
When a rocket engine operates inside the ambiance, its exhaust passes by a number of shockwaves, exposing a standing wave like that seen within the picture above. What is that this sample referred to as?
Answers:
1. F = ma
2. Konstantin Tsiolkovsky
3. Thrust
4. 1,1-dimethylhydrazine
5. Specific impulse
Visual: Shock diamonds
