Introduction to Mastering Astronomy

How many months of the year have 28 days?

12.

Which box contains something different from the other boxes? (You could guess randomly, but if you are not sure about an answer it is best to try the hints.)

Box C.

Which of the following actions do not cause you to lose credit?

Answering a Part correctly.

If you have a gross of items, you have 144 items. If you buy a gross of eggs, how many dozen eggs do you have?

12 dozen.

 

What is the sum of 9260 and 3240?

12500.

Practice entering numbers that include a power of 10 by entering the diameter of a hydrogen atom in its ground state, dh= 10.6x10^-11m, into the answer box.

dh= 1.06x10^-10m

A rectangle has a length of 5.50m and a width of 12.0m. What are the perimeter and area of this rectangle?

Perimeter, area= 35.0,66.0 m,m^2

Suppose you are asked to find the area of a rectangle that is 2.1-cm wide by 5.6-cm long. Your calculator answer would be 11.76 cm^2. Now suppose you are asked to enter the answer in two significant figures.

12 cm^2

In Part C, you are asked to calculate the volume of a rectangular prism that has a length of 5.6 cm, a width of 2.1 cm, and a height of 6.6 cm. What value should you use as the area of the base when calculating the answer to Part C?

11.76 cm^2

Using the correct answer from Part B, calculate the volume of a rectangular prism with a length of 5.6 cm, a width of 2.1 cm, and a height of 6.6 cm.

78 cm^3

Would an answer that generated the response below be considered correct and give you full credit?

Yes.

Drag the terms in the left-hand column to the appropriate blanks in the sentences on the right. Make certain all sentences are complete before submitting your answer.

The capital of Argentina is BUENOS AIRES.

 
JAKARTA is the capital of Indonesia.

The capital of Kenya is NAIR OBI.

 
CANBERRA is the capital of Australia. 

OSLO is the capital of Norway.

The capital of Canada is OTTAWA.

 

Identify the continents by dragging the labels to the appropriate targets.

Left toRight: North America, South America, Europe, Antartica, Africa, Australia, Asia.

 

Drag the appropriate items to their respective bins.

Fruits: Banana, Apple, Avocado, Tomato.
Vegetables: Potato, Carrot.

 

Rank these shapes from greatest to fewest number of sides

 Octagon, Hexagon, Pentagon, Rectangle/Square, Triangle.

What is the final shape of the dots in the pop-up animation?

Circle.

In which city was Mastering first used?

Cambridge, Massachusetts.

What is shown in the video? If you can't see the video use the hints for help.

Details about how to use the captions in videos in Mastering.