Space Engineering
What are the reasons for using aluminium in spacecrafts? (State two)
low density and corrosion resistance
Which planet rotates on its side due to its unusual axial tilt?
Uranus
What was the first artificial earth satellite?
Sputnik 1
What is the name of the galaxy nearest to the Milky Way?
Andromeda Galaxy
What is newton's law of gravitation
Newton's Law of Universal Gravitation states that every particle attracts every other particle with a force proportional to the product of their masses and inversely proportional to the square of the distance between their centers/ or the formula
What is the professional term used for the long legs that unfold to help rockets land vertically on a pad?
Landing legs
What is the name of the solar system’s largest volcano?
Olympus Mons
Who was the first woman in space?
Valentina Tereshkova
What type of galaxy is the Milky Way classified as?
Barred spiral galaxy
What escape velocity is required to escape Earth’s Gravitational Field
11.2km/s
What is used at the bottom of a capsule when it hits Earth’s atmosphere at high speeds to prevent it from melting?
Heat Shield
Which planet’s day is longer than its year?
Venus
What was the first planet discovered using a telescope?
Uranus
What is the name of the black hole at the center of the Milky Way?
Sagittarius A*
How is red shift calculated
(Observed wavelength-emitted wavelength)/(emitted wavelength )
What is the ideal shape used in space settlement designs?
torus
What is the largest moon in the solar system?
Ganymede
What was sent into space in 1977 to show aliens what life on earth is like?
The Golden Record
What phenomenon occurs when a black hole's gravity bends light from objects behind it?
Gravitational lensing
What is the Planck scale?
The scale at which quantum gravity effects become significant.
What is the professional term for “space armor” or “debris shield”?
Whipple Shield
What is the name of the boundary where the solar wind meets interstellar space, marking the edge of the Sun's influence?
Heliopause
What was the name of the hypothetical planet that was thought to be between mercury and the sun in the mid 19th century?
Vulcan
What is the largest known structure in the universe?
The Hercules–Corona Borealis Great Wall
What does the Bekenstein-Hawking entropy formula insinuate
The entropy of a blackhole is proportional to the area of the event horizon