1.1 how are physical quanities measured

Question 1

1 min in seconds

Answer 1

60s

Question 2

1h in seconds

Answer 2

3600s

Question 3

lab apparatus used to measure time

Answer 3

digital stopwatch

Question 4

types of stopwatches

Answer 4

1.digital
2.mechanical
3.analogue

Question 5

smallest division of digital stopwatch

Answer 5

土0.01s (a hundredth of a second)

Question 6

smallest division of analogue stopwatch

Answer 6

土0.1s (a tenth of a second)

Question 7

temperature in k=

Answer 7

temperature in degree celcius + 273

Question 8

commonly used thermometers in laboratory

Answer 8

1. alcohol and mercury thermometer
2. digital thermometer

Question 9

data loggers

Answer 9

used to measure temperature and collect data automatically

Question 10

range of temperature in alcohol thermometer

Answer 10

-10°C - 110 °C

Question 11

1m in dm (decimeter)

Answer 11

10dm

Question 12

1m in mm (millimetre)

Answer 12

1000mm

Question 13

10dm to cm

Answer 13

100cm

Question 14

accuracy of meter rule

Answer 14

土0.1cm to 土0.5cm

Question 15

1kg in g

Answer 15

1000g

Question 16

1t (tonne) in kg

Answer 16

1000kg

Question 17

1kt (kilotonne) in t (tonne)

Answer 17

1000t

Question 18

1kt (kilotonne) in kg

Answer 18

1 000 000 kg

Question 19

apparatus to measure mass

Answer 19

beam balance, electronic mass balance

Question 20

1m^3 in dm^3 (cubic decimeter)

Answer 20

1000dm^3

Question 21

1m^3 in cm^3

Answer 21

1 000 000cm^3

Question 22

apparatus to measure volume

Answer 22

pipette
volumetric flask
measuring cylinder
burette

Question 23

pipette

Answer 23

measures accurate fixed volumes (eg. 10.0cm^3 or 25.0^3)

Question 24

volumetric flask

Answer 24

measures accurate fixed volumes that are larger (eg. 100cm^3 or 250cm^3)

Question 25

measuring cylinder

Answer 25

measures a range of volumes to nearest 0.5cm^3 (eg. 31.5cm^3 or 250cm^3)

Question 26

burette

Answer 26

measures a range of volumes ro the nearest 0.05cm^3 (eg. 31.55cm^3 or 23.00cm^3)

Question 27

when reading volume of liquid we should position eyes at

Answer 27

meniscus of liquid to prevent parallel error

Question 28

apparatus to measure volume of gas

Answer 28

gas syringe

Question 29

range of values measured by gas syringe

Answer 29

100cm^3