quizlet
energy that does not need matter to travel; light
radiant energy
the sun is a ____.
star
a massive ball of gas in outer space that gives off heat, light, and other forms of radiation.
star
objects that are exposed to the sun gain ______.
energy
turning around on an axis; spinning
rotate
the study of properties and behavior of bodies in outer space
astronomy
it is the_______ star in our solar system.
largest
a system of objects that revolve around a star
solar system
what absorbs light from the sun?
nonliving materials such as rocks and water
waves of electromagnetic energy; electromagnetic energy that people can see
light
a type of electromagnetic radiation that has a higher frequency than violet light
ultraviolet
Photosphere, chromosphere, and the corona
the three layers of the sun
an instrument used to observe objects that are far away
telescope
why does the sun appear larger and brighter than other stars?
because it is much closer to the earth
the transfer of thermal energy
heat
the ability to do work or cause change; the ability to move an object some distance
energy
what two things does the sun give to the earth?
gives warmth and light
a process by which energetic electromagnetic waves move from one place to another
radiation
when rocks and water absorb the suns light and changes it to thermal energy, does the temperature decrease or increase?
increase
everything that exists in, on and around the earth
universe
a cooler darker spot on the surface of the sun
sunspot
it also gives energy to many of Earth's systems such as ___ _____ _____ and the _______.
the water cycle and weather
send energy from one place to another
transmit
what is the sun made out of?
hydrogen and helium
a device that uses the position of the sun as it casts a shadow to measure time
sundial