
TED-ED: Logarithms, Explained - Steve Kelly
Interactive Video
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Mathematics
•
KG - University
•
Practice Problem
•
Hard
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the logarithm of 10,000 to the base 10?
5
3
2
4
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it important to understand logarithms in bases other than 10?
To calculate the speed of light
To measure temperature
Because base 10 is not used in science
To solve problems in computer science
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the value of log base 2 of 64?
7
8
5
6
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the pH of a solution related to logarithms?
pH is the sum of the hydrogen ion concentration
pH is the negative logarithm of the hydrogen ion concentration
pH is the product of the hydrogen ion concentration
pH is the square root of the hydrogen ion concentration
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why might swimming in a pool with a pH of 8.4 cause red eyes?
Because it is too acidic
Because it is too basic
Because it is neutral
Because it has no effect
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