Astronomy Quiz with Wrap up Quiz

Question 1

1 out of 1 points

Impact craters are caused by

Selected Answer:	meteor or other projectile impact
Answers:	tectonic movement in the crust
	erosion by wind or water
	volcanic processes
	meteor or other projectile impact

Question 2

1 out of 1 points

A meteor about the size of a house can make a crater that is

Selected Answer:	about 3/4 of a mile across
Answers:	also about the size of a small house
	about 125 miles across
	about 3/4 of a mile across
	6000 miles across

Question 3

1 out of 1 points

The asteroid that is credited with causing the extinction of the dinosaurs was about the size of

Selected Answer:	Mount Everest
Answers:	the average width of the Grand Canyon
	a school bus
	a small house
	Mount Everest

Question 4

0 out of 2 points

The term “age” referring to a surface on a planet refers to

Selected Answer:	how long ago the planet formed
Answers:	how old the planet is with respect to the Earth
	how long ago the planet formed
	how old the planet is with respect to the universe
	how recently something happened to change the surface

Question 5

2 out of 2 points

In this lab you will estimate age of a surface by measuring

Selected Answer:	crater density vs. crater diameter
Answers:	crater density vs. crater diameter
	crater density vs. crater height
	crater height vs. crater of diameter
	number of preserved craters vs. number of eroded craters

Question 6

2 out of 2 points

The oldest surfaces are expected to have

Selected Answer:	higher densities of both large and small craters than younger surfaces
Answers:	higher densities of large craters than younger surfaces but relatively few small craters
	lower densities of both large and small craters than younger surfaces
	higher densities of small craters than younger surfaces, but about the same number of large craters
	higher densities of both large and small craters than younger surfaces

Question 7

0 out of 1 points

Using the crater dating method, which of the following has the overall “youngest” appearing surface?

Selected Answer:	Mercury
Answers:	Earth
	Earth’s Moon
	Mars
	Mercury

Question 1

1 out of 2 points

The relationship between the force of gravity, the masses of two objects, and their distance apart is

Selected Answer:	a mathematical model that completely explains gravity.
Answers:	a mathematical model that completely explains gravity.
	not a model because it involves only numbers and letters not a scaled system.
	an example of a mathematical model of the attraction between two objects.
	an unreliable representation of the world that needs major modifications.

Question 2

0 out of 2 points

At the latitude of GMU (about 39 degrees north),the Sun is directly overhead

Selected Answer:	only on the dates of the equinoxes
Answers:	only on the dates of the equinoxes
	every day at noon
	on the summer solstice
	never

Question 3

1 out of 1 points

As it approaches perihelion the speed of a planet

Selected Answer:	is increasing
Answers:	is decreasing
	has its lowest speed
	remains the same
	is increasing

Question 4

0 out of 1 points

All planets in the solar system orbit the Sun which is at

Selected Answer:	at the crossing point of the major and minor axes
Answers:	at the crossing point of the major and minor axes
	one of the focal points for each planet’s elliptical orbit
	a focal point that sifts as the planet orbits
	at the center of each of the orbits

Question 5

1 out of 1 points

When you push a pencil off the table and it begins to fall to the floor its

Selected Answer:	potential energy is converted to kinetic energy as it falls
Answers:	its kinetic energy is converted to potential energy as it falls
	potential energy is converted to kinetic energy as it falls
	its chemical energy is converted to kinetic energy as it falls
	its chemical energy is converted to potential energy as it falls

Question 6

0 out of 1 points

One way to define mass of an object is to say it is

Selected Answer:	how much the object weighs
Answers:	how big the object is
	how much the object resists motion
	how much the object weighs
	how fast the object can go