Chapter 1. What do these have in common? Odd one out???
-
Upload
joanna-sherman -
Category
Documents
-
view
226 -
download
3
Transcript of Chapter 1. What do these have in common? Odd one out???
Practice 12.5 days to seconds _____________________
3.5 km to mm ___________________________
43 cm to km ____________________________
22 mg to kg _____________________________
671 kg to µg _____________________________
8.76 x 107 mW to GW _____________________
1.753 x 10-13 s to ps ________________________
LAB on Precision 1) Use the solid 1 m stick and measure the length of
the lab table
2) Use the 1 m stick marked with dm
3) Use the 1 m stick marked with cm
4) Use the actual meter stick to measure the length of your desk.
Write down the results to the maximum precision in each case.
PracticeThe value of the speed of light is
now known to be 2.997 924 58 ×108m/s.Express the speed of light in the following ways:
a) 3 SF
b) 5 SF
c) 7 SF
Adding and Subtracting# of digits 0.______ (after the
decimal point) = the least precise
3345.28 + 0.2 = 3345.48 = 3345.5
57.8 – 0.567 = 52.233 = 52.2
A QUICK SELF-CHECK
0.0845 kg ___________
37.00 h _____________
8630000.000 mi _____
0.000 000 0217 g ____
750 in ______
0.5003 s ______
Multiplying and Dividing#SF (result) = the least #SF
(A*B)
1.34 x 2300 = 3082 = 3.1103
#SF (result) = the least #SF (A/B)
23967 / 45 = 532.6 =5.3102
Practice Bicyclists in the Tour de France reach speeds of 34.0 miles per hour (mph) on flat sections of the road. What is this speed in a) km/h and b) m/s - ?1 mile = 1.61 km
PracticeThe largest diamond ever found had a size of 3106 carats. One carat is equivalent to a mass of 0.200g. Use the fact that 1 kg (1000.0g) has a weight of 2.205 lb under certain conditions, and determine the weight of this diamond in pounds.