1. Scientific Notation and Units

2. How many seconds are there in one year? (i.e., convert years to seconds) 1. 365s. 2. 8.76x10 3 s. 3. 5.3x10 5 s. 4. 3.2x10 7 s. 1234567891011121314151617181920212223242526272829303132333435 90

3. One millionth of a millimeter is a 1. nanometer. 2. kilometer. 3. picometer. 4. micrometer. 1234567891011121314151617181920212223242526272829303132333435 90

4. One square meter has the same area as 90 1234567891011121314151617181920212223242526272829303132333435 1. 0.01 cm 2 2. 10 5 cm 2 3. 100 cm 2 4. 10 4 cm 2

5. One cubic meter has the same volume as 1. 0.001 cm 3 2. 1.0 cm 3 3. 1000 cm 3 4. 10 6 cm 3 90 1234567891011121314151617181920212223242526272829303132333435

6. If 2.2 lbs has a mass of 1 kg, what is the order of magnitude (power of ten) of the total mass of the student body of Gettysburg College? 1. 10 3 kg. 2. 10 4 kg. 3. 10 5 kg. 4. 10 6 kg. 90 1234567891011121314151617181920212223242526272829303132333435

7. Estimate the number of blades of grass in a typical residential lawn. 1. 10 5. 2. 10 7. 3. 10 9. 4. 10 11. 90 1234567891011121314151617181920212223242526272829303132333435