Score: 100%

Quiz for Chapter 4
Question 1 (1 point)
 

Mass and weight are different names for the same physical property of matter.
Question 1 options:
>	A) True
	B) False
Question 2 (1 point)
 

An unbound orbit results when a satellite has a velocity greater than the escape velocity.
Question 2 options:
>	A) True
	B) False
Question 3 (1 point)
 

The escape velocity on the Moon is less than that on Earth.
Question 3 options:
>	A) True
	B) False
Question 4 (1 point)
 

The tidal force on the Earth due to the Moon is about two times stronger than that due to the Sun.
Question 4 options:
>	A) True
	B) False
Question 5 (1 point)
 

Moons that wander inside of a planet’s Roche limit can be torn apart due to tidal forces.
Question 5 options:
>	A) True
	B) False
Question 6 (1 point)
 
Two rocks (call them S and T) are released at the same time from the same height and start from rest.  Rock S has 20 times the mass of rock T. Which rock will fall faster if the only forces involved are each
rock’s mutual gravitational attraction with Earth?
Question 6 options:
	

a) 
	

Rock S
	

b) 
	

Rock T
	

>c) 
	

Both rocks will fall at the same rate.
	

d) 
	

Not enough information is available to answer
Question 7 (1 point)
 
Which of the following properties of an astronaut changes when he or she is standing on the Moon, relative to when the astronaut is standing on Earth?
Question 7 options:
	

>a) 
	

Weight
	

b) 
	

Mass
	

c) 
	

Inertia
	

d) 
	

All of the above
	

e) 
	

Nothing Changes
Question 8 (1 point)
 
_________ hypothesized that planetary motions could be explained by a force arising from the attraction between the mass of the planet and Sun that decreased with the square of the distance between
them.
Question 8 options:
	

a) 
	

Johannes Kepler
	

>b) 
	

Isaac Newton
	

c) 
	

Tycho Brahe
	

d) 
	

Nicolaus Copernicus
	

e) 
	

Galileo Galilei
Question 9 (1 point)
 

Tidal forces are caused by:
Question 9 options:
	

a) 
	

the weight of the water in the oceans on the ocean floor
	

b) 
	

the strength of the gravitation pull of the Moon on Earth
	

c) 
	

the difference between the weight of the water on the ocean floor at high and low tide
	

>d) 
	
the difference between the strength of the gravitational pull of the Moon and Sun on
either side of Earth
	

e) 
	

the strength of the gravitation pull of the Moon and the Sun on Earth
Question 10 (1 point)
 

According to the figure, a high tide at a given location will occur ____ time(s) a day.
Question 10 options:
	

A) 
	

One
	

>B) 
	

Two
	

C) 
	

Three
	

D) 
	

four
	

E) 
	

eight

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