REVIEW: Introduction to Astronomy

Define Vacuum:

• A vacuum is a space entirely devoid of matter, specifically a space containing no air or other gas.
• A vacuum is a unit of measurement for electrical power.
• A vacuum is a type of sealed container used for storing food.
• A vacuum is a cleaning device used to remove dirt and debris from floors.
• A vacuum is a type of star that has collapsed in upon itself and exploded violently outward

Which two (2) are reasons humans need space suits:

• Provide oxygen

• Enhance physical strength
• Provide food and water
• Block harmful radiation
• Protect from extreme conditions

Define Karman Line:

• The Karman Line is the boundary between Earth's crust and mantle.
• The Karman Line is the boundary between Earth's lithosphere and asthenosphere.
• The Karman Line is the boundary between Earth's atmosphere and outer space.
• The Karman Line is the boundary between Earth's troposphere and stratosphere.
• The Karman Line is the boundary between Earth's exosphere and magnetosphere.

Define Low Earth Orbit:

• Area around Earth where airplanes fly, ranging from 5,000 km to 10,000 km above the Earth's surface.

• The troposphere, where weather occurs and most commercial flights take place

• Region in space around Earth where satellites and other spacecrafts orbit at altitudes ranging from 160 km to 2,000 km above the Earth's surface.
• A region between Earth and the orbit of the moon

Organize these options into the right categories

Groups:

(a) Dangers associated with Space Travel

,

(b) NOT associated with Space Travel

• Radiation

• Isolation

• Temperature Extremes

• Space Debris

• Volcanic Eruptions

• Forest Fires

• Ocean Currents

• Earth's Atmosphere

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS3-2

Which of the these is not a danger associated with current space travel:

• Cosmic radiation exposure
• Encountering extraterrestrial life

• Microgravity effects: muscle loss, bone density decrease

• Space debris collisions with space craft

• Isolation: mood disorders

Which of these would occur to a human in outer space without a space suit:

• Death due to extreme cold
• Death due to lack of oxygen
• Death due to loneliness
• Death due to lack of food
• Death due to lack of sleep

A space entirely devoid of matter, specifically a space containing no air or other gas:

• Hollow
• Void
• Vacuum
• Empty space
• Barren

Organize these options into the right categories

Groups:

(a) Sources of Radiation in Space

,

(b) NOT sources of radiation in space

• solar particles

• alpha particles

• neutrinos

• particles trapped in Earth's magnetic field

• cosmic rays

• muons

Identify two (2) potential health risks associated with radiation exposure during space travel:

• Enhanced immune system
• Degenerative diseases

• Improved cardiovascular health
• Increased risk of cancer
• Reduced risk of bone fractures