study guide for astronomy

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