Observing the universe
Quiz by Oak National Academy: GCSE Physics Edexcel Higher
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6 questions
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- Q1Which of the following optical instruments can improve what we can see in space?Users sort answers between categoriesSorting30s
- Q2What makes a star appear to twinkle in the night sky?cloudsmoving airnebulae in spacegases around the star30s
- Q3What are the advantages of using a space telescope compared to a telescope on Earth?Users sort answers between categoriesSorting30s
- Q4How do Messier objects that can be seen with a telescope differ in appearance from stars?They have distinct colours.They are much brighter.Their brightness varies in a regular pattern.They don't have sharp outlines.30s
- Q5What are absorption lines in a spectrum of light from a star?black lines on a visible spectrum caused by air in Earth's atmosphereblack lines on a visible spectrum caused by a telescopecoloured lines that add together to make a visible spectrumblack lines on a visible spectrum caused by gases around a star30s
- Q6What observation shows that redshift has occurred and that the wavelength of light from a distance galaxy has increased?there is more red light in the visible spectrum of the galaxyabsorption lines in its spectrum have lower than expected frequenciesabsorption lines in its spectrum have higher than expected frequenciesthere is less red light in the visible spectrum of the galaxy30s