Week 10 quiz

https://ung.view.usg.edu/d21/ims/quizzing/user/attempt/quiz How many official constellations are recognized in the night sky ?

88

Why was the observation of Venutian phases by Galileo so important ?

A purely heliocentric model could not predict the phases observed by Galileo . A purely geocentric model could not predict the phases observed by Galileo . A geoheliocentric model could not produce the phases observed by Galileo . Only a purely heliocentric model could produce the phases observed by Galileo .

The boundary layer between Earth's mantle and outer core is called the

Core-mantel boundary

Which terrestrial planet has the lowest average density ?

Mars

When Earth's magnetic field undergoes its next polarity reversal , compasses will point in the wrong direction

True

The rate of change of an object's velocity - either speed or direction - is called

acceleration .

The outer - most layer of Earth composed primarily of silicate rock is called the

crust

Identify which type of wave is represented by each colored line in the figure . Red lines represent waves and the blue lines represent waves .

secondary, primary

What are the three stages of impact crater formation ?

✓solidifying explosion squishing rebound ✓impact ✔melting . ejection

Which seismic wave provides the best evidence that Earth's outer core is in a molten state ?

secondary

exerts on Earth compare to the gravitational force that Earth exerts on the Moon ? Given that Earth is much larger and more massive than the Moon , how does the strength of the gravitational force that the Moon

Earth exerts a stronger gravitational force because it is larger

Density is a measure of an object's

mass to volume ratio ( M / V )

Earth's outer core is primarily composed of

molten iron & nickel .

A terrestrial planet's average density primarily tells us about

planet's average distance from the Sun. the strength of a planet's magnetic field . the size of a planet's liquid outer core . the fraction of rock and metal in a planet's interior . ((??))

Sound is an example of which type of wave ?

primary

Which type of seismic wave can propagate through Earth's outer core ?

primary

Which type of seismic wave propagates parallel to the oscillatory motion of the individual particles ?

primary

Which type of seismic wave is created by an alternative sequence of compression and rarifaction of the particles ?

primary waves