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Solar system Flashcards | StudBud
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Solar system
Solar system
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1
What is the difference between an asteroid and a comet?
asteroids are made mostly of rock/comets are made of mostly of ice
asteroids are made mostly of ice/comets are made of mostly of rock
asteroids are made mostly of rock/comets are made of mostly of metal
asteroids are made of ice and metal/comets are made of mostly of dust
2
The Earth's atmosphere is.....
78% oxygen
equal amounts nitrogen and oxygen
equal amounts of various gases
78% nitrogen
3
Without the earth's tilt life will not be affected and will continue to be stable.
True
False
4
What is inertia?
tendency of an object to resist change in motion unless acted by a force
Mass and distance
travel in a curved path
energy source
5
What forces cause Earth to travel in a curved path instead of moving in a straight line?
direction
inertia
Gravity and inertia
speed
6
When the distance between objects increases the force of gravity decreases.
True
False
7
What would happen if Earth’s proximity to the sun changed?
we will be fine!
liquid water will continue to exist
summer will be nicer if we move further from the sun
Seasons would change which would affect all life on the Earth.
8
What 2 factors affect the gravitational forces between any 2 objects?
speed and distance
inertia and mass
mass and speed
mass and distance
9
Which scientist determined that gravity controlled the movement of objects in space?
Newton
Einstein
Mendeleev
Rutherford
10
What are the basic requirements for life on Earth?
only food and water
earth's tilt
only oxygen and water
Liquid water, energy source, complex chemistry, a stable environment
11
The earth's degree tilt is....
25.3
180
23.5
90
