(All assignments will be due) Test Tomorrow (All assignments will be due) Measurement In-class review

1. Would your mass be the same on Venus?

1. Would your mass be the same on Venus? Yes

2. Would your weight be the same on Venus?

2. Would your weight be the same on Venus? No

3. Which is smallest? 1 km, 1 dm, 1 mm or 1 cm

3. Which is smallest? 1 km, 1 dm, 1 mm or 1 cm

4. mL is a unit for what kind of measurement?

4. mL is a unit for what kind of measurement? volume

5. Kg is a unit for what kind of measurement?

5. Kg is a unit for what kind of measurement? mass

6. mm is a unit for what kind of measurement?

6. mm is a unit for what kind of measurement? length

7. K is a unit for what kind of measurement?

7. K is a unit for what kind of measurement? Temperature

8. What kind of equipment is used to measure mass?

8. What kind of equipment is used to measure mass? A balance

9. What kind of equipment is used to measure temperature?

9. What kind of equipment is used to measure temperature? thermometer

10. What kind of equipment is used to measure length?

10. What kind of equipment is used to measure length? Ruler, meter stick, etc.

11. What kind of equipment is used to measure volume?

11. What kind of equipment is used to measure volume? Graduated cylinder

12. What is the SI unit for length?

12. What is the SI unit for length? Meter

13. What is the SI unit for mass?

13. What is the SI unit for mass? Gram or kilogram

14. What is the SI unit for volume?

14. What is the SI unit for volume? Liter or milliliter (not really a SI unit)

15. What metric prefix means “one-hundredth?”

15. What metric prefix means “one-hundredth?” centi

16. What metric prefix means “one-thousandth”

16. What metric prefix means “one-thousandth” milli

17. What metric prefix means “one-tenth?”

17. What metric prefix means “one-tenth?” deci

18. What metric prefix means “thousand?”

18. What metric prefix means “thousand?” kilo

19. 25.3 mm equals how many centimeters?

19. 25.3 mm equals how many centimeters? 2.53 cm

20. 1 kilogram equals how many grams?

20. 1 kilogram equals how many grams?

21. 1 decigram equals how many grams?

21. 1 decigram equals how many grams? 1/10 g, or 0.1 g

22. 1 centigram equals how many grams?

22. 1 centigram equals how many grams? 1/100 g, or 0.01 g

23. 1 milligram equals how many grams?

23. 1 milligram equals how many grams? 1/1000 g or 0.001 g

24. What does “accuracy” refer to?

24. What does “accuracy” refer to? How close a measurement is to the accepted or true value

25. What does “precision” refer to?

25. What does “precision” refer to? How close measurements are to each other (or how repeatable they are)

26. If the correct value for a length is 22 26. If the correct value for a length is 22.7 cm, which of the following sets of measurements could be considered precise but not accurate? 20.4cm, 20.2cm, 20.5cm 12.6cm, 22.6cm, 32.6cm 22.5cm, 22.7cm, 22.6cm 24.6cm, 23.7cm, 25.9cm

26. If the correct value for a length is 22 26. If the correct value for a length is 22.7 cm, which of the following sets of measurements could be considered precise but not accurate? 20.4cm, 20.2cm, 20.5cm 12.6cm, 22.6cm, 32.6cm 22.5cm, 22.7cm, 22.6cm 24.6cm, 23.7cm, 25.9cm

27. How many cm are in one km?

27. How many cm are in one km? 1 km x 1000m/1km x 100cm/1m = 100,000cm