Measurement & Density
The Universe
Solar System
Earth's History
ESSRT Practice
100
What is the LEAST dense thing in the column?
Ping Pong Ball
100
Which star is brighter - Procyon B or Polaris? How do you know?
Polaris - higher up on luminosity scale, higher luminosity value
100
State a characteristic of a Jovian planet, and identify one!
Gas, larger, farther from the Sun, low density (Jupiter, Saturn, Uranus, Neptune)
100
What is the approximate half-life of Potassium-40?
1.3 billion years
200
What is the density of a mystery substance if the volume is 65.32 cm3 and the mass is 27.63 grams? Round to the nearest hundredth
0.42 g/cm3
200
What can be said about the motion of these galaxies? What does that mean about the Universe as a whole?
Galaxies are experiencing a Red Shift, meaning they are moving away from each other and from the observer on Earth. This means the Universe is EXPANDING
200
What phase is the moon in here?
Waning Crescent
200
As the percentage of the Parent Isotope decreases, the percentage of the Daughter Decay Product
INCREASES
200
The index fossil, Cryptozoon, belongs to what family/category of organism?
Stromatolites
300
The density of a block of wood is 0.65 g/mL. If this block was cut perfectly in half, what would the density of each piece be?
0.65 g/mL. DENSITY STAYS THE SAME - SAME MATERIAL NO MATTER THE SIZE
300
The force of gravity is universal, but there are 2 factors than influence the overall strength of the gravitational pull between objects in space. What are these two factors?
Mass and Distance
300
Satellite A and B are the same mass, but they move different speeds and have different periods of revolution. Explain and provide evidence as to why they move differently.
Satellite B moves faster and has a shorter period of revolution than A because B is CLOSER to the object they are orbiting. KEPLER's LAWS
300
The first life forms with hard shells came about in what PERIOD of Earth's History?
Cambrian
400
A massive snow storm hit the area! Over the last 6 hours since it started, there were 13.5 inches of snow! What is the rate of change for the accumulation of snow? Include the units
2.25 in/hour
400
The earliest stages of nuclear fusion is H + H = ___ and____
Helium and Energy
400
What season would someone in the Northern Hemisphere be experiencing in this situation? EXPLAIN how you know!
Winter - Tilted AWAY from the Sun = lower intensity of Sun's energy, lower temperature
400
Put these events in order from OLDEST to YOUNGEST
C,B,A,D,E
500
Mass = 7.21 grams... Density= ? UNITS
1.20 g/mL
500
According to the HR Diagram, this star is 10,000 K with a luminosity of 100,000. What is the name AND color of this star?
Rigel - White / Blue-white
500
In the northern hemisphere, which path of the sun would be observed in the winter? EXPLAIN why you chose this path
A - low in the sky, short path = less daylight hours
500
After 3 half-lives of Carbon-14 have gone by, how old is this sample?
17,190 years