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Chapter 2

True or False

True or False
Based on the information in the chapter, determine whether each of these statements is true or false.

This activity contains 11 questions.

	The source of the Sun's energy is a fission reaction in which a hydrogen nucleus splits into several helium nuclei.    True  False

	The Sun emits radiation composed only of visible light wavelengths.    True  False

	X-ray radiation is one component of the Sun's electromagnetic spectrum.    True  False

	Sunspots are the result of magnetic storms on the sun.    True  False

	At any point along the circle of illumination, the Sun would be on the horizon.    True  False

	The solar constant is the position of the Sun at perihelion.    True  False

	If the speed of Earth's rotation increased 50 percent, the length of a year would not change. However, each day would be shorter.    True  False

	For locations north of the Tropic of Cancer, the Sun's altitude reaches its annual maximum on the December solstice.    True  False

	At the equator, daylength (duration of exposure to the Sun) is a constant 12 hours/day throughout the year.    True  False

	The axial tilt of the Earth is 23.5 degrees from a perpendicular to the plane of the ecliptic.    True  False

	Seasons occur as Earth moves closer to -- and farther from -- the Sun during the course of the year.    True  False

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