Physics 11

Name: _________________________

Measurement and Scientific Notation Measurements in physics are carried out in ____ units, aka the _____ __________. Measurement Length Mass Time Speed Acceleration Force Energy

Unit

Prefixes

Prefix

Symbol

Converting Units Factor

1: Find the _______________

Symbol 2: Find the ______ of each prefix. 3: Use the ______ ________!

Ex. 1) Convert 165 mm to m

2) Convert 380 cg to mg

3) Convert 24 ML to mL

4) Convert 24 m/s to km/h

Scientific Notation Ex:

When converting between m/s and km/h remember the magic number:

1. Write the following numbers in scientific notation: a) 5,500,000,000

b) 780

0.00000436 

c) 0.091

d) 0.000003004

- Move the decimal point until only...

2. Write the following numbers in regular notation:

- The # of spaces moved is the...

a) 5.5 x 10-4

- Move left and the exponent is _______

b) 7.1 x 106

32 000 000 

-Move right and the exponent is _______ 3. Compute the following: a) 103 x 105

e) 103  105

c) 1.0 x 103

b) 4 x 10-3 x 5 x 10-5

c) 10-3 x 105

d) (8.0 x 105)(1.2 x 108)

f) (2.3 x 10-3)  (1.0 x 10-5)

g) 10-3  105

h) (3 x 108)2