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Scientific Notation Phrase Issues


This lesson is about six fastidiously chosen scientific notation phrase issues together with their options.

Instance #1:

Jupiter is the most important planet in our photo voltaic system and its mass in scientific notation is about 1.9 × 1027. Write the mass in normal notation.

Resolution:

1.9 × 10271.9 × 10 × 1026 = 19 × 1026 = 1900000000000000000000000000

The mass of Jupiter in normal notation is 1900000000000000000000000000

Instance #2:

It’s predicted that the world inhabitants in 2025 might attain eight billion. Write eight billion in scientific notation.

Resolution:

Eight billion = 8000000000 = 8 × 109

Instance #3:

The oxygen atom has a mass of about 0.00000000000000000000000003 kg. Write the mass of the oxygen atom in scientific notation.

Resolution:

0.00000000000000000000000003 = 3 × 10-26 kg

Instance #4:

The next lots that are components of an atom are measured in grams. Order the components of an atom from biggest to least mass. 

electron: 9.1096 × 10-28, neutron: 1.6749 × 10-24, proton: 1.6726 × 10-24

Resolution:

The smallest mass is since 9.1096 × 10-28 since -28 will create extra zeros after the decimal level.

1.6749 × 10-24 and 1.6726 × 10-24 have the identical exponent. So we simply want to check 1.6749 to 1.6726.

Since 1.6726 is smaller than 1.6749, 1.6726 × 10-24  is smaller than 1.6749 × 10-24

From biggest to least mass, we get: 1.6749 × 10-24 > 1.6726 × 10-24 > 9.1096 × 10-28 

Instance #5:

The burden of an grownup male elephant is about 5600 kg. What’s the weight in scientific notation?

Resolution:

In scientific notation the burden of an grownup male elephant is 5.6 × 103

Instance #6:

A pc can carry out about 5 × 108 directions per second. What number of directions is that per hour? Categorical the reply in scientific notation.

Resolution:

1 hour is the same as 3600 seconds. Due to this fact, we have to multiply 5 × 108 by 3600

3600 × 5 × 108 = 36 × 102 × 5 × 108

3600 × 5 × 10= 36 × 5 × 102 × 108

3600 × 5 × 10= 180 × 1010

3600 × 5 × 10= 1.80 × 1012

3600 × 5 × 10= 1.8 × 1012

The pc can carry out about 1.8 × 1012 directions per hour


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