Unit 8 Science

Technology has been essential to advancing our knowledge of space. Which of the following technology tools is correctly paired with its impact on space exploration?

• The Mars rovers have enabled scientists to collect samples and data from remote locations

• The Hubble Space Telescope has enabled scientists to communicate using cellular technology

• Communication satellites orbiting Earth have allowed scientists to access an study outer space

• The Space Shuttle has enabled scientists to view galaxies further away than we have ever been able to view.

How has our ability to send remote-controlled devices to planets such as Mars best enhanced our understanding of the Universe?

• It has made it possible for astronauts to visit distant planets in person

• It has allowed us to visually explore distant planets without endangering anyone

• It has permitted our exploration only to planets with atmospheres similar to ours

• It has enabled us to collect soil samples from distant planets and bring them back to Earth

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Cell phones, radar, and televisions are examples of devices that function by using electromagnetic waves. What property of electromagnetic waves makes them useful for phone, radar, and television signals?

• Electromagnetic waves cannot be changed

• Electromagnetic waves can travel long distances

• Electromagnetic waves travel at different speeds

• Electromagnetic waves are harmful at high temperatures

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Which statement accurately compares a radio wave and an infrared wave?

• A radio wave has a longer wavelength and a lower frequency than an infrared wave

• A radio wave has a shorter wavelength and a lower frequency than an infrared wave

• A radio wave has a longer wavelength and a higher frequency than an infrared wave

• A radio wave has a shorter wavelength and a higher frequency than an infrared wave

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Which of the following lists the types of radiation in order of decreasing energy?

• x-ray, infrared, radio

• infrared, x-ray, radio

• radio, x-ray, infrared

• radio, infrared, x-ray

Which statement best compares gamma rays to the other components of the electromagnetic spectrum?

• Gamma rays have the lowest frequency and least energy.

• Gamma rays have the highest frequency and least energy.

• Gamma rays have the lowest frequency and greatest energy.

• Gamma rays have the highest frequency and greatest energy.

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Which of the following technologies developed for use in space would best help a local government plan for the construction of a new community park?

• a satellite image

• an unmanned rover

• an LED lighting system

• a reverse osmosis drinking fountain

Which of the following events best demonstrates how politics influences science?

• the race to land a man on the Moon

• the argument for controlling space pollution

• the development of unmanned space probes

• the application of space technology to cellular phones

The John F. Kennedy Space Center is the launch headquarters of the National Aeronautics and Space Administration (NASA) and is located in Brevard County,Florida. The tables below show the population of this county during a 100-year period and the events that occurred in the history of NASA. Given this information, which statement best explains the increase in population?

• The population increased because astronauts chose to have more children.

• The population increased because new jobs were created in the space industry

• The population increased because housing prices decreased for space scientists

• The population increased because tourists interested in space decided to stay permanently

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Business will likely result in increased sales when tourists visit Florida to attend events associated with space exploration. Which of the following will most likely NOT experience an increase in sales due to the tourist activity?

• Furniture Stores

• Restuarants

• Hotels

• Souvenir Shops