chemistry; test

Use the following equation to help you. The peak intensity of radiation from Mars is about 14,000 nm. What is the average surface temperature of Mars rounded to the nearest whole number?

207 K

Select all that apply. Which of the following astronomers supported the Sun-centered system?

Copernicus, Johannes Kepler

If two elements are in the same chemical family, then what can be predicted about their spectra?

Each element will have its own specific spectra.

If Earth is in the portion of its orbital path that is further from the Sun, then what can be determined about its rate?

Its rate will be slower than when it is closer to the Sun.

Arrange the following three stars from hottest to coolest. Star P = type B Star Q = type K Star R = type F

P, R, Q

Select all that apply. The spectrum of Star S is compared to a reference hydrogen spectrum. What can be concluded about Star S?

Star S has radial motion, Star S is moving away from Earth.

Your best friend told you that last week scientists discovered that Las Vegas is responsible for abrupt climate changes. Which do you think is BEST way to research this recent discovery?

USGS internet site

Where does the peak intensity need to fall on the spectrum for a very intense star?

Ultra-violet range

Does the moon emit radiation?

Yes, the moon has a temperature above absolute zero so it emits radiation.

The following diagram shows the path of a planet around the Sun. Kepler discovered that _____.

area D = area B + area C

Plants remove which greenhouse gas from the atmosphere?

carbon dioxide

Bleaching is an outcome of ocean acidification that directly affects _____.

coral

Which of the following is not part of the carbon cycle?

evaporation of water from the oceans

Night vision glasses detect _____ energy emitted from cooling objects.

infrared

The peak intensity of radiation from Mars is about 14,000 nm. In what spectral band is this?

infrared radiation

A blackbody curve relates the wavelength of emitted light to _____.

intensity

A drop of vinegar (a weak acid) is placed on a sample of each of the materials below. Which will show the most active reaction?

marble

Which of the following have circular orbits?

none of the above

The ______ motion of a star can be determined by studying its spectrum.

radial

Which of the following has a natural pH that is acidic?

rain

A type M star is likely to appear _____.

red

What effect does reducing your carbon footprint have on the environment?

reduces the greenhouse effect

Which of the following has a natural pH that is basic?

sea water

Scientists can use spectral analysis of stars to determine which of the following? Select all that apply.

surface temperature of the star elements on the surface of the star core temperature of stars [double check answers]

Which of the following would decrease your carbon footprint?

using any bag more than once

The Sun emits its most intense radiation as _____.

visible light

Which of the following materials is able to absorb large amounts of energy without changing temperature very much?

water