SPAC 110

Test 2

Explorer 1’s radiation detector recorded unexpectedly low readings in some regions of its orbit. What caused these low readings?

Intense radiation overwhelmed the detector, preventing accurate readings.

What technological milestone distinguished Vanguard 1 from earlier satellites?

It used solar cells to supply electrical power

Which mission first achieved a successful soft landing on the moon and transmitted photographs from its surface?

Luna 9

What enabled voyager 2 to visit Jupiter, Saturn, Uranus, and Neptune during one mission?

Using gravity assists at planets along its route to reach the next planet

Which mission delivered sojourner, the first rover to operate on mars?

Mars pathfinder

What did Hayabusa accomplish that allowed scientists to study asteroid material directly in laboratories on earth?

It returned asteroid material to earth on a sample capsule

What was Yuri Gargin’s Vostok 1 flight and Alan shepards’s freedom 7 flight path?

Gargin’s flight was orbital, Shepard’s flight was suborbital

What problem occurred during Vostok 1’s return to earth?

The equipment module failed to separate completely from the descent module

First crewed lunar landing

Apolo 11

First docking between two spacecraft

Gemini VIII

First crewed flight into lunar orbit

Apollo 8

First human orbital flight

Vostok 1

What was the first space station placed in earth orbit?

Salyut 1

Which American performed the first spacewalk?

Ed White

Why is the space shuttle partially reusable?

The orbiter and booster hardware were reused, but external tank is discarded

How did the Lunar Roving Vehicle expand exploration during Apollo 15, 16, and 17?

It allowed astronauts to travel farther from the lunar module and carry more equipment and samples

Which station has supported continuous occupancy since November 2000?

The ISS (International Space Station)

Observe a destination during a brief encounter

Flyby

Gemini VI-A demonstrated rendezvous with Gemini VII. Why was this capability essential for Apollo’s lunar missions?

The lunar module had to rendezvous and dock with the CSM in lunar orbit after leaving the Moon’s surface

How did having two docking ports on Salyut 6 and 7 help support longer station operations?

They allowed a supply vehicle to dock while the crew’s Soyuz remained attached

Which Soyuz module carriers the crew through atmospheric reentry and landing?

Descent module

Where does nuclear fusion occur in the sun?

In the core

A large eruption of plasma and magnetic field from the sun’s corona is called what?

Coronal mass ejection

What is the oldest light we can observe in the universe?

Cosmic microwave background

Why did rocky planets form closer to the sun while gas and ice giants formed farther away?

The inner solar system was hotter, allowing rock and metal to remain solid while vaporizing lighter elements and ices; beyond the frost line, ices condensed and helped large cores capture hydrogen and helium.

What produces most of the sun’s energy?

Nuclear fusion of hydrogen into helium into the core

What are the terrestrial plantes?

Mercury, venus, earth and mars

Do all gas giants have rings?

Yes

Has methane and ethane lakes

Titan

Sudden burst of electromagnetic radiation from the sun

Solar flares

Most volcanically active world

Io

What does CME stand for?

Cornal mass ejection

What does SPE stand for?

Solar particle events

What does GCR stand for?

Galactic cosmic rays