Question

1. define precision - match the number with the definition( some might be used more than once)
2. directly proportional
3. inverse proportion
4. quantity
5. mass
6. weight
7. volume
8. scientific law
9. theory
10. derived units

fill in the missing blanks
quantity unit abbreviation

1. length
2. kilogram kg
3. time
4. temperature kelvin
5. mole mol
6. write in scientific notation.

a. 0.000000052
b. 124000

1. write in standard notation.

a. 8.91 x 10^5
b. 2.4 x 10^-3

Explanation:

Step1: Match definitions

1. Directly proportional: two quantities that give a constant value when one is divided by the other.
2. Inverse proportion: two quantities that have a constant mathematical product.
3. Quantity: is something that has magnitude, size or amount.
4. Mass: is measured in kilograms; is the quantity of matter in an object.
5. Weight: = Mass times gravity.
6. Volume: the amount of space that a substance or object occupies.
7. Scientific law: Predicts what happens, resists change.
8. Theory: Tries to provide the most logical explanations about why things happen.
9. Derived units: combinations of SI base units.

Step2: Fill - in - the - blanks

1. Length: Unit - meter, Abbreviation - m
2. Quantity - Mass, Unit - Kilogram, Abbreviation - kg
3. Time: Unit - second, Abbreviation - s
4. Temperature: Unit - kelvin, Abbreviation - K
5. Quantity - Amount of substance, Unit - mole, Abbreviation - mol

Step3: Write in scientific notation

a. For 0.000000052, move the decimal 8 places to the right. So it is $5.2\times10^{- 8}$.
b. For 124000, move the decimal 5 places to the left. So it is $1.24\times10^{5}$.

Step4: Write in standard notation

a. For $8.91\times10^{5}$, move the decimal 5 places to the right. So it is 891000.
b. For $2.4\times10^{-3}$, move the decimal 3 places to the left. So it is 0.0024.

Answer:

1. two quantities that give a constant value when one is divided by the other
2. two quantities that have a constant mathematical product
3. is something that has magnitude, size or amount
4. is measured in kilograms; is the quantity of matter in an object
5. = Mass times gravity
6. the amount of space that a substance or object occupies
7. Predicts what happens, resists change
8. Tries to provide the most logical explanations about why things happen
9. combinations of SI base units
10. Unit - meter, Abbreviation - m
11. Quantity - Mass
12. Unit - second, Abbreviation - s
13. Abbreviation - K
14. Quantity - Amount of substance
15. a. $5.2\times10^{-8}$; b. $1.24\times10^{5}$
16. a. 891000; b. 0.0024