Spring Exam Review: Unit 9 "Space Survival"

A hypothetical solar system is shown in the diagram provided.

• Planet Z

• Planet W

• Planet X

• Planet Y

All of the following characteristics of Jupiter’s moon, Europa, are conditions that make it suitable for supporting life EXCEPT -

• water on the surface.

• oxygen in the atmosphere.

• gravity on the surface.

• surface temperature of -260ºF.

Scientists are constantly exploring the universe, looking for new planets that support life similar to the life on Earth. A new planet that supports life would be expected to have all of the following characteristics EXCEPT –

• a gaseous atmosphere.

• an orbiting moon.

• liquid water.

• protection from radiation.

A spacesuit includes a helmet, gloves, shoes, and a total body covering. What vital part of the spacesuit that keeps the astronaut alive is missing from this list?

• A handheld computer

• A robotic arm

• An oxygen system

• A jet pack

An astronaut returns from six months on the space station. The astronaut’s muscles are weak, requiring the astronaut to be helped from the spacecraft once back on Earth. Which of the following accommodations on the space station would help prevent this problem?

• Provide food that provides astronauts with more energy.

• Outfit the space station with exercise equipment.

• Increase the oxygen levels inside the space station.

• Design spacesuits that are lighter and easier to wear.

Velcro® allows objects to be easily attached and also easily separated. What condition of space made the invention of Velcro® necessary?

• Lack of oxygen

• Vacuum of space

• Microgravity (very low gravity) environment

• Extreme temperatures

Why was the Moon chosen for the first manned landing in our solar system?

• Its distance from Earth

• Its diameter

• Its shape

• Its phases

Astronauts must take all the supplies they need to survive in space.

As a result, the longer the trip, the more supplies they must take.

Based on the illustration, which planet would require astronauts to take

the fewest supplies?

• Uranus

• Saturn

• Mars

• Neptune

Why must astronauts wear a specially-coated visor on their helmets when walking in space?

• To see better in space

• To protect eyes against solar radiation

• To see in the darkness of space

• To avoid the need to wear eyeglasses in space

Look at the chart below. What percentage of Earth’s atmosphere is oxygen?

• 78.1%

• 0.065%

• 0.035%

• 20.9%