Stuff About the Scientific Notation
Uses of Scietific Notation In Life
Scientific Notation Questions
Mulitiple Choice
Negatives in Scientific Notations
100
When do you use positive exponents?
To write larger numbers
100
Whyis scientific notation used?
Scientific notation is used as a standard way of recording very large and very small numbers so they can fit on one line in the page of a book and be more easily compared.
100
What is the Rule of Scientific Notation?
To express any positive number in scientific notation, write it as the product of a power of ten and a number between 1 and 10.
100
What is 6 x 10 to the ninth power? a) 6 billion b) 60 billion c) 600 billion d) .6 billion
a) 6 billion
100
When there is a negative exponet, which way do you move the decimal?
Whenever there is a negative exponent, the decimal place is always moved to the left.
200
When do you use negative exponents?
To write smaller numbers.
200
How would you calculate a real life application for the scientific notation to find the approximate mass of the Earth? (hint Earth is 5,973,600,000,000,000,000,000,000 kg - use 10 to the 20th power to solve)
Earth's mass is approximately 5,973,600,000,000,000,000,000,000 kg.; however written in scientific notation, the result would be 5.9736×10 to the 20th power in kilograms (kg).
200
What are the terms used to refer to each of the of numbers in a scientific notation problem such as 2.38 x 10 to the 5th power?
The first set of numbers, 2.38, is called the coefficient. It must be greater than or equal to 1 and less than 10. The second number is the base and it must always be 10 in scientific notation. The base number 10 is always written in exponent form. In the problem 2.38 x 10 to the 5th power, the number 5 is referred to as the exponent or power of ten.
200
What is 2.79 x 10 to the fourth power? a) 279,000 b) 2,790 c) 27.9 d) 27,900
d) 27,900
200
What is 6.50 x 10 to the power of negative 2?
0.0650
300
What is a significant digit?
A digit in a number that specifics the degree of percision of a measurement.
300
How can you use scientific notation in your life?
You can use scientific notation in your life to describe any large number or very small number in every day life, ranging from things like the number of cells in your body to the distance from the earth to the sun.
300
What are some other references to scientific notation?
Standard form or exponential notation.
300
What is 8.01 x 10 to negative 2? a) 0.00801 b) 0.0801 c) 0.801 d) 0.81
b) 0.0801
300
What is the scientific notation for a particle that is 0.00059 that requires two significant numbers?
5.9 x 10 to the negative forth.
400
Define scientific notation?
A method for writing numbers by using positive exponents to write large numbers and negative exponents to write small numbers.
400
How would a scientist show the scientific notation of the speed of light which is 300,000,000 miles per second?
3 x 10 to the eight power, miles per second.
400
Why does scientific notation always use a decimal between 1 and 10?
This has to do with order of magnitude. Order of magnitue is a simple way to keep track of roughly how large a number is to be able to compare it with other numbers more easily. Example every number starting with 10 but less than 100 has an order of magnitude of 1. Every number starting with 100 but less than 1000 has an order of magnitude of 2, and so on.
400
What is 3.7951 x 10 to the zero power? a) 0 b) 1 c) 3.7951 d) None of the above
c) 3.7951
400
What is the scientific notation for 0.001?
1 x 10 to the negative 3rd power
500
What provides an exact gauge of the precision of a measurement, based on the smallest unit of calibration on the measuring instrument?
Scientific notation.
500
What is generally the form or formula used to find the scientific notation of a number?
Generally the scientific notation formula is "a x 10 to the n power". Example to find the scientific notation of 500 would be 5 x 10 to the 2nd power.
500
What is a name used to refer to a power? For example, you would say the number "2", which is used as 10² is also called an __________?
The number "2" in 10² power may also be called an exponent.
500
What is 2,809,380 in scientific notation? a) 2,809,380 x 10 to the sixth power b) 20,809,380 x 10 to the sixth power c) 2.809380 x 10 to the sixth power d) .2809380 x 10 to the sixth power
c) 2.809380 x 10 to the sixth power
500
Are expressions that are positive different from expressions that are negative?
An expression that has a negative exponent, is equal to that same expression with the same positive exponent in the denominator the difference is the direction in which you need to move the decimal to represent either a greater number or a smaller number.
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