Exam 3: Earth-Sun Relationships and Solar Energy

Explain why Earth is warmer at the equator than at the poles.

A(n)_______________ is a celestial body that revolves around a star and reflects the star's light rather than producing its own.

The energy emitted by the Sun comes from ____ taking place in the Sun's core. ​

The Northern Hemisphere of Earth is closest to the Sun in ____.

Earth's tilt away from being perpendicular is called the angle of _______________.

Sunspot numbers vary over a cycle roughly _______________ years long.

The constant path that Earth travels in its orbit around the Sun describes a surface called the plane of the ____. ​

Earth's velocity of rotation is at its maximum at the ____. ​

Earth's rotational axis is inclined ____ off of being perpendicular to the plane of the ecliptic. ​

Although Pluto was once designated the ninth planet, it has been reclassified as a(n)____. ​

The longest wavelength of visible light is associated with which color? ​

What is an analemma used for? ​

During the _______________ solstice, the Arctic Circle experiences 24 hours of darkness.

The _______________ marks the northernmost migration of the Sun's vertical rays. (three words)

On June 21, which of these locations has the longest day?

Charged particles (mainly protons and electrons)from the Sun can flow along lines of the Sun's magnetic field millions of miles into space in what is called the ____. ​

The _______________ equinox occurs on or about September 22.

Earth is considered a ____. ​

Heat represents energy in which part of the electromagnetic spectrum? ​

A(n)_______________ is a cluster of stars, dust, and gases surrounded by space, and is like an enormous island in the universe.