Chapter 22-25
Which scientist proposed three laws planetary motion ?
Kepler
The true shape of planetary orbits was discovered by…..
Johannes Kepler
What is most important safety rule ?
Follow the teacher instructions
When is the daily tidal range greatest ?
spring tidal
The center mass where two or more celestial bodies orbit known as…….
Barycenter
which part of the electromagnetic spectrum ?
Radio Waves
Describe a diurnal tidal pattern.
Describe a semidiurnal tidal.
The source of the sun’s energy is….
known as Nuclear fusion
Density is measured in which unit ?
g/m1 or g/cm3
Seasons are caused by…..
the tilting of the earth orbits axis
The geocentric model of the universe stated that…..
In the geocentric model, the moon, sun and known planets—Mercury,Venus,Mars,and Jupiter.
What is the shape of a planet’s orbit?
Ellipse
The shape of the earth is describe as…..
The shape of the earth is classified as an oblate spherod, instead of a true sphere.
The movement of the axis of a rotating body or a wobble is known as…..
Revolution
Based on the observed red shifts in the spectral lines of distant galaxies, astronomers conclude that….
Space between galaxies expanding
What tool do you use to measure mass?
balances, triple beam balances, electronic scale
In which step of the scientific method is information obtained through the senses?
define the problem
Plants use sunlight to produce sugar through actions of the chlorophyll through a process known as…
photosynthesis
The energy of a photon is related to is…
wave length
Earths axis slowly but continuously points in different directions, a movement known as…
precession
What are three types of galaxies?
spiral galaxy, elliptical galaxy, irregular galaxy
The turning or spinning of a body on its axis is known as…
rotation
According to the third law of planetary motion, the period of revolution of a planet is related to the planets…
orbital period
The gravitational forces of the moon and the sun cause this event…
tides
Gamma rays, x rays, visible light, and radio waves are all types of…
electromagnetic radiation
The study of the properties of light that depend on the wavelength is known as…
spectroscopy
Mass is measured in what unit?
g, kg, mg
The smallest daily tidal range occurs during which type of tide?
neap tide
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?
l, ml, cm^3 ,cc,(ml)
Which tidal pattern has two high tides and two low tides each day?
semi and diurnal
What movement of earth is responsible for night and day?
rotation
Which law states that each planet resolves so that imaginary line connecting it to the sun sweeps over equal areas in equal time intervals?
second law
What is the most important lab safety procedure?
follow teachers instructions
Which scientist was the first to use the telescope in astronomy?
galileo galilei
Earth is closest to the sun at a point called…
perihelion
Why does earth expierience precession?
earths axis maintains approximately
How does earth move through space?
rotation revolution
What chemical reactions produce the suns energy?
nuclear fusion
How is solar energy essential to plants?
solar energy is changed into chemical energy through photosynthesis
How does the suns energy affect food webs on earth?
plants use sunlight to produce sugar through the actions of the chlorophll
Light seen in space is known as a…..
photon
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