Forming a Planet
What term is used to describe planets organizing layers based on density?
(Planetary) Differentiation
What two factors influence gravity?
Size and distance
What two factors influence an objects density?
Mass and Volume
What element makes up the Inner Core?
Iron
Which layer of the Earth is thinnest?
Crust
What objects combined to form the Earth we have today?
Asteroids
which will have a larger gravitational pull:
Two 10,000 kg objects that are 50 km apart
or
Two 10 kg objects that are 50,000km apart
Two 10,000 kg objects that are 50 km apart
What is the formula for density?
D=m/v
What state of matter is the outer core?
Liquid
Which layer of the Earth is the thickest?
Mantle
What were the asteroids that formed Earth orbiting at the time?
The sun
How did Gravity help form the planets?
Gravity pulled in other large asteroids and smaller particles to help round out the planet
An object with a mass of 40g and a volume of 8 mL has what density?
5 g/mL
What causes the inner core to remain a solid?
Pressure
What is the temperature of the inner core?
10,000 degrees F
When forming the Earth, where did the most dense materials go?
To the center (core)
How quick is Earth's gravitational acceleration (ie. at what rate does Earth's pull accelerate objects on Earth)
9.8 m/s2
An object floats in a solution with a density of 3.5 g/mL but sinks in a solution wit ha density of 2.4 g/mL. What is a possible density for this object?
2.4g/mL-3.5 g/mL
What two types of rocks make up the crust?
Granite and Basalt
What causes basalt to be more dense than granite?
faster cooling in the ocean
What collapsed, allowing the asteroids that formed Earth to begin orbiting?
A Nebula
What is the formula for finding gravitational force?
F=G(m1m2)/r2
An object has a density of 4 g/mL. If the object has a volume of 0.5 mL, what is its mass?
2g
Name all 3 elements that primarily make up the mantle
Magnesium, Silicon, Aluminum.
Which layer of the Earth produces the magnetic field?
Outer Core