physical quantities (units and measurement)

Question 1

billion

Answer 1

giga (G), 10^9

Question 2

million

Answer 2

mega (M), 10^6

Question 3

thousand

Answer 3

kilo (k), 10^3

Question 4

tenth

Answer 4

deci (d), 10^-1

Question 5

hundredth

Answer 5

centi (c), 10^-2

Question 6

thousandth

Answer 6

milli (m), 10^-3

Question 7

millionth

Answer 7

u (not written like this), 10^-6

Question 8

billionth

Answer 8

nano (n), 10^-9

Question 9

tera

Answer 9

tera (T), 10^12

Question 10

metre rule (use, smallest division, measuring range)

Answer 10

measure length, 0.1cm or 1mm, zero to one metre

Question 11

measuring tape (use, smallest division, measuring range)

Answer 11

measure length, 0.1cm or 1mm, zero to several metres

Question 12

digital calipers (use, smallest division, measuring range)

Answer 12

measures short length, 0.001 cm or 0.01mm, zero to 15 cm

Question 13

digital micrometer screw gauge (use, smallest division, measuring range)

Answer 13

measures objects that are too small to be measured using digital calipers, 0.0001cm or 0.001mm, zero to 2.5 cm