21st Century Astronomy
6th Edition
ISBN: 9780393428063
Author: Kay
Publisher: NORTON
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Chapter 4.4, Problem 4.4CYU
To determine
Which is correct answer.
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Which of the following is a measurable effect of the tidal interactions between the Earth and the moon?
choose 1 of the following:
a.
The moon is constantly getting closer to the Earth, and will one day collide with our planet.
b.
The rotation rate of the Earth is gradually slowing down.
c.
The rotation rate of the moon is gradually speeding up.
d.
The moon pulls more strongly on the far side of the Earth than it does on the near side.
Due to tidal forces, a moon orbiting a planet will eventually
a
always keep the same side toward the planet
b
collide with the planet
c
break up into a number of fragments
d
develop a warmer climate as time goes on
Jupiter's moon Io is very volcanically active, which means it has plate tectonics.
a.
true
b.
false
When tidal bulges are NOT in a direct Earth-moon line but slightly ahead of the moon,
a.
Earth’s gravity weakens.
b.
their gravitational field pulls the moon forward in its orbit, causing it to recede from Earth.
c.
their gravitational field pulls the moon back in its orbit, causing the moon to fall toward Earth.
d.
Earth’s gravity strengthens, causing the moon to orbit faster.
e.
the tidal bulges have no effect on the moon.
Chapter 4 Solutions
21st Century Astronomy
Ch. 4.1 - Prob. 4.1ACYUCh. 4.1 - Prob. 4.1BCYUCh. 4.2 - Prob. 4.2CYUCh. 4.3 - Prob. 4.3CYUCh. 4.4 - Prob. 4.4CYUCh. 4 - Prob. 1QPCh. 4 - Prob. 2QPCh. 4 - Prob. 3QPCh. 4 - Prob. 4QPCh. 4 - Prob. 5QP
Ch. 4 - Prob. 6QPCh. 4 - Prob. 7QPCh. 4 - Prob. 8QPCh. 4 - Prob. 9QPCh. 4 - Prob. 10QPCh. 4 - Prob. 11QPCh. 4 - Prob. 12QPCh. 4 - Prob. 13QPCh. 4 - Prob. 14QPCh. 4 - Prob. 15QPCh. 4 - Prob. 16QPCh. 4 - Prob. 17QPCh. 4 - Prob. 18QPCh. 4 - Prob. 19QPCh. 4 - Prob. 20QPCh. 4 - Prob. 21QPCh. 4 - Prob. 22QPCh. 4 - Prob. 23QPCh. 4 - Prob. 24QPCh. 4 - Prob. 25QPCh. 4 - Prob. 26QPCh. 4 - Prob. 27QPCh. 4 - Prob. 28QPCh. 4 - Prob. 29QPCh. 4 - Prob. 30QPCh. 4 - Prob. 31QPCh. 4 - Prob. 32QPCh. 4 - Prob. 33QPCh. 4 - Prob. 34QPCh. 4 - Prob. 35QPCh. 4 - Prob. 36QPCh. 4 - Prob. 37QPCh. 4 - Prob. 38QPCh. 4 - Prob. 39QPCh. 4 - Prob. 40QPCh. 4 - Prob. 41QPCh. 4 - Prob. 42QPCh. 4 - Prob. 43QPCh. 4 - Prob. 44QPCh. 4 - Prob. 45QP
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