Shared Flashcard Set

Details

outer space
galaxies
40
Science
8th Grade
04/19/2013

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Cards

Term
The belief that states all matter in the universe was compressed into the space the size of an atom, and created a big explosion sending matter outward in all directions is _____.
Definition
big bang theory
Term
What is the belief that a great Supreme Being mad all of the different plants and animals including man?
Definition
God's creation
Term
What holds all of the galaxies, solar systems, and planets?
Definition
universe
Term
What are large objects in space that holds billions of stars?
Definition
galaxy
Term
What is the galaxy shape where most of the stars are in the center and the galaxy has revolving arms?
Definition
spiral
Term
What galaxy shape has the stars scattered in every direction?
Definition
irregular
Term
Which galaxy shape has an oval shape but it is flat also?
Definition
elliptical
Term
The Milky Way galaxy is _____ shaped.
Definition

Spiral

(barred spiral)

Term

Our sun is at the middle of our ____.

 

Definition
solar system
Term
Our sun and everything that goes around it is the _____.
Definition
solar system
Term
Put these items in order from biggest to smallest in size: solar system, galaxy, universe, star, planets.
Definition
universe, galaxy, solar system, star, planets
Term
If galaxies seem red in color this means they are _____.
Definition
getting farther away
Term
If galaxies seem violet in color they are _______.
Definition
getting closer
Term
If galaxies are getting closer they appear ____ in color.
Definition
violet
Term
If galaxies are getting farther away, they appear _____ in color.
Definition
red
Term
What is a group of galaxies really close together called?
Definition
galactic cluster
Term
What is a group of stars really close to each other, like at the center of our galaxy?
Definition
star cluster
Term
What is thought to be in the middle of our star cluster of the Milky Way galaxy?
Definition
black hole
Term
Waves that carry electric and magnetic energy through space at the spped of light are called _____.
Definition

electromagnetic waves

EM waves

Term

What EM waves have the longest wavelength and lowest frequency?

 

Definition
radio waves
Term
What EM waves have the shortest wavelength and the highest frequency?
Definition
gamma waves
Term
What is the top of a wave called?
Definition
crest
Term
What is the bottom of a wave called?
Definition
trough
Term
What is the distance from one spot of a wave to the identical spot on the next wave?
Definition
wavelength
Term
What EM wave can cause skin cancer?
Definition

ultraviolet waves

UV waves

Term
Which EM waves are used for police radar and to cook food?
Definition
microwaves
Term
Which EM waves carry sound and picture information?
Definition
radio waves
Term
Which EM waves keep objects warm?
Definition
infrared waves
Term
Which EM waves are the only ones people can see?
Definition
visible light
Term
Which EM waves can kill cancer cells?
Definition
gamma waves
Term
Which EM waves can takes pictures of bones because they can go through the skin?
Definition
x-rays
Term
which EM waves are used in hospitals to kill bacteria because they can kill living cells?
Definition

ultraviolet waves

UV waves

Term
What are the colors of visible light in order of frequency from lowest to highest?
Definition

ROY G. BIV

red, orange, yellow, green,

blue, indigo, violet

Term
What are the colors of light in order from longest to shortest frequency?
Definition

ROY G. BIV

red, orange, yellow, green,

blue, indigo, violet

Term
What are the colors of light in order of strength from weakest to strongest?
Definition

ROY G. BIV

red, orange, yellow, green,

blue, indigo, violet

Term
What is the mutual attraction between all objects made of matter?
Definition
gravity
Term
What determines how much gravity an object has?
Definition
the object's mass
Term
The gravitational pull of an object can be affected by _____.
Definition
distance
Term
If a person get's further away from the earth, will they weigh more or less?
Definition
less
Term
If a person gets closer and closer to the earth, will they weigh more or less?
Definition
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