1. Physics uses the Sl system in units of ____________
a.) feet, pounds and hours
b.) meters kilograms and seconds
c.) inches, quarts and minutes
d.) none of the answers

2. Using scientific notation, decimal places are expressed as powers of
a.) 4
b.) 5
c.) 12
d.) 10

3. How many milligrams are in one kilogram?
a.) 1,000,000
b.) 10
c.) 1,000
d.) 10,000

4. The diameter of a carbon atom is 0.000 000 000 154 m. What is this number expressed in nanometers?
a.)0.000 000 154 nm
b.)0.154 nm
c.)0.000 154 nm
d.) 154 nm

5. Three different people weigh a standard mass of 2.00 g on the same balance. Each person obtains a reading of exactly 7.32 g for the mass of the standard. These results imply that the balance that was used is
a.) both accurate and precise
b.) precise but not accurate
c.) accurate but not precise
d.) neither accurate nor precise​