Understanding Logarithms and Square Roots

Understanding Logarithms and Square Roots

Assessment

Interactive Video

Mathematics

9th - 10th Grade

Hard

Created by

Thomas White

FREE Resource

The video tutorial explains how to find the square root of a number using logarithms. It begins with converting the number into standard form, then using a logarithm table to find the logarithm of the number. The process involves dividing the logarithm by two to find the square root's logarithm, and finally using antilogarithms to convert back to a normal number. The tutorial provides a step-by-step guide, including how to navigate a log book and calculate the necessary values.

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7 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in finding the square root of a number using logarithms?

Convert the number to binary

Multiply the number by 10

Divide the number by 2

Write the number in standard form

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is the number 654 written in standard form?

6 x 10^2

6.54 x 10^2

65.4 x 10^1

654 x 10^0

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the log book, where do you find the first two digits of the number?

In the middle row

In the last column

In the first column

In the last row

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the logarithm value of 654?

2.7182

2.8156

3.1415

1.2345

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the square root represent in terms of power?

Power of two

Power of one

Power of zero

Power of half

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What operation is performed on the logarithm value to find the square root?

Multiply by 2

Divide by 2

Add 2

Subtract 2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the antilogarithm used for?

To find the logarithm

To convert back to the normal number

To divide the number

To multiply the number