Space Terms Flashcards
(21 cards)
Geocentric
Geocentric is the theory that the earth is the center of the solar system
Astronomy
Astronomy is the study of space
Heliocentric
The theory that the sun is the center of the are solar system
Big Bang theory
The Big Bang theory is when the universe was created
Hypothesis
Collection of ideas that seem to explain what is observed
Predictions that can be tested
Models
Describes reality based on hypothesis that have withstood observation and experimental tests explains with maths properties and behaviors of some object or phenomenon
Theory
Serious of we’ll tested hypothesis that together from a self consistent and accurate description of nature capable of making predictions that can be tested verified by anyone
Laws
Proven theory’s that have stood the test of time and broad applicability
Planet
pAn object that circles p round the sun and has a mass big enough to be a sphere
Celestial body
Is any natural body outside our atmosphere
Moon
A moon is a big comet that has no life that surrounds the sun
Sun
A sun is a huge star that’s piping hot and planets depend on it
Gravity
The thing that pulls stuff down from the sky
Scaler
Only having one magnitude no direction
Vector
a quantity having direction as well as magnitude, especially as determining the position of one point in space relative to another.
Displacement
the action of moving something from its place or position.
Current electricity
An electric current is the rate of flow of electric charge past a point or region. An electric current is said to exist when there is a net flow of electric charge through a region. In electric circuits this charge is often carried by electrons moving through a wire.
Static electricity
Static electricity is an imbalance of electric charges within or on the surface of a material. The charge remains until it is able to move away by means of an electric current or electrical discharge.
Conductors
In physics and electrical engineering, a conductor is an object or type of material that allows the flow of charge (electrical current) in one or more directions. Materials made of metal are common electrical conductors.
Charged particles
In physics, a charged particle is a particle with an electric charge. It may be an ion, such as a molecule or atom with a surplus or deficit of electrons relative to protons. It can also be an electron or a proton, or another elementary particle, which are all believed to have the same charge (except antimatter).
Insulator
Do not allow charged particles to move freely through them e.g. rubber, plastic
