astronomy study guide

Using Tycho Brahe’s data, which scientist proposed three laws of planetary motion
Johannes Kepler
The true shape of planetary orbits was discovered by
Johannes Kepler
what is the most important safety rule
follow teachers instructions
when is the daily tidal range greatest
spring tides
the center of mass where two or more celestial bodies orbit each other is known as
which part of the Electromagnetic spectrum is the slowest
Radio Waves
the source of the sun’s energy is
nuclear fusion
density is measured in which unit
g/ml/ or g/cm3
seasons are caused by
the tilting of the earth
the geocentric model of the universe stated that
the Moon,sun and planets orbit Earth
what shape of a planet’s orbit
according to the article, the shape of the Earth is described as
an oblate period or ellipsoid , instead of sphere
the movement of the axis of a rotating body or a wobble is known as
what tool do you use to measure mass
balance, triple-beam balance, electronic balance
Plants use sunlight to produce sugar through the actions of the chlorophyll through a process known as
the energy of a photon is related to its
wave length
Earth’s axis slowly but continuously points in different direction, a movement known as
what are the three types of galaxies?
spiral ellipticia, irregular
the turning or spinning of a body on its axis is known as
according to the third law of planetary motion, the period of revolution of a planet is related to the planet’s
orbital period
the gravitational forces of the moon and the sun causes this event
Gamma rays , x-rays , visible light, and radio waves are all types of
electromagnetic radiation
mass is measured in which unit
g, kg, mg
the study of the properties of light that depend on the on wavelength is known as
the smallest daily tidal range occurs during which type of of tide
neap tides
According to the big bang theory, the universe began about
13.7 billion years ago
what field located on earth helps protect us from harmful solar radiation rays
ozone layer
our galaxy is called the
milky way galaxy
volume is measured in what unit
which tidal pattern has two high tides and two low tides each day
semi-diurnal tidal pattern
what movement of earth is responsible for day and night
the earth’s rotaion
which law states that the planet revolves so that imaginary line connecting it to the sun sweeps over equal areas in equal time intervals
second law
what is the most important lad safety procedure
always read instruction directed by the teacher
which scientist was the first to use the telescope in astronomy
Galileo Galilei
Earth is closest to the sun at a point called
why does Earth experience precession
it maintains approximately the same angle of tilt, the axis traces a circle on the circle on the sky
How does earth move through space?
Rotation, revolution, precession
what chemical reactions produce the sun’s energy
nuclear fusion
How is solar energy essential to plants
solar energy is changed into chemical energy through photosynthesis
How does the sun’s energy affect food webs on earth
plants use sunlight to produce sugar through the actions of the chorophyll