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Worksheets

Types of Logs

Total questions: 15

Worksheet time: 15mins

Name
Class
Date
1.
The common logarithm has what base?
a)
10
b)
0
c)
e
d)
-e
2.
Log with a base "e" (loge) is the same thing as...
a)
"e"
b)
Natural Logarithm (LN)
c)
Common Logarithm (Log)
d)
Natural Log, base "e"
LNe
3.
The common logarithm has what base?
a)
10
b)
0
c)
e
d)
-e
4.
The natural logarithm has what base?
a)
10
b)
0
c)
e
d)
-e
5.

What is the base of the logarithm in this equation?


log(x) = 100

a)

1

b)

x

c)

100

d)

10

6.
Convert 10(x+5)=100 to logarithmic form.
a)
log100=x+5
b)
log(x+5)=100
c)
log(100)=x+5
d)
log(x+5)(100)=10
7.

Convert ex = 9 to logarithmic form.

a)

ln x = 9

b)

ln 9 = x

c)

logx e = 9

d)

log9 x = e

8.

Rewrite in exponential form:

ln(2) = x

a)

2x = 10

b)

102 = x

c)

ex = 2

d)

e2 = x

9.

What is the base of ln(6)?

a)

10

b)

e

c)

2

d)

6

10.

What is the base of ln(b)?

a)

10

b)

e

c)

b

d)

2

11.

What is the base of log(823)?

a)

10

b)

e

c)

823

d)

2

12.

What is the base of log(100)?

a)

10

b)

e

c)

100

d)

2

13.

What is the base of log5(x)\log_5\left(x\right)  ?

a)

10

b)

e

c)

5

d)

x

14.

What is the base of log8(64)\log_8\left(64\right)  ?

a)

10

b)

e

c)

8

d)

64

15.

What is the base of ln(123456789)?

a)

10

b)

e

c)

123456789

d)

ln