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Details

study guide for astronomy
chapter 22-25 and 1
29
Environmental Studies
9th Grade
01/31/2013

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Cards

Term
Which scientist proposed three laws of planetary motion?
Definition
Johannes Kepler
Term
The true shape of planetary orbits was discover by:
Definition
Johannes Kepler
Term
What is the most important safety rule?
Definition
Listen to your teacher
Term
When is the daily tidal range greatest?
Definition
Spring tide
Term
The center of the mass where two or more celestial bodies orbit each other is known as?
Definition
Barycenter
Term
Which part of the Electromagnetic spectrum is the slowest?
Definition
Radio waves
Term
The source of the sun's energy is:
Definition
Known as nuclear fusion four hydrogen nuclei into the nucleus of helium atom.
Term
Density is measured in which unit?
Definition
g/ml/ or g/cm3
Term
Seasons are caused by?
Definition
Tilting of the earth on its axis when the Earth is tilted away from the sun.
Term
The geocentric model of the universe stated that:
Definition
In the geocentric model the moon, sun and the known places.
Term
What is the shape of a planet's orbit?
Definition
Ellipses
Term
The movement of the axis of a rotating body or a wobble is known as:
Definition
oscillatory
Term
What tool do you use to measure mass?
Definition
Balance, triple-beam balance, electronic balance.
Term
In which step of the scientific method is information obtained through the senses?
Definition
Define problem
Term
Plants use sunlight to produce sugar through the actions of the chlorophyll through a process known as:
Definition
Photosynthesis
Term
The energy of a photon is related to its:
Definition
Wavelength
Term
The earth axis is known as:
Definition
Precession
Term
What re the three types of galaxies?
Definition
Spiral, Elliptical, Irregular
Term
The turning or spinning of a body on its axis is known as:
Definition
Rotation
Term
Plants use sunlight to produce sugar through the actions of the chlorophyll through a process known as:
Definition
Photosynthesis
Term
Earth's axis slowly but continuously points in different directions a movement known as:
Definition
Precession
Term
What are the three types of galaxies?
Definition
Spiral, Elliptical, and Irregular
Term
According to the third law planetary motion, the period of revolution of a planet is related to the planet's:
Definition
Orbital period
Term
The gravitational forces of the moon and the sun cause this event.
Definition
Tides
Term
Gamma rays, X-rays, visible light, and radio waves are all types of:
Definition
Electromagnetic radiation
Term
Mass is measured in which unit?
Definition
g,kg,mg
Term
The study of the properties of light that depend on the wavelength is known as:
Definition
Spectroscopy
Term
The smallest daily tidal range occurs during which type of tide?
Definition
Neap tide
Term
According to the big
Definition
13.7 years ago
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