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Phys:Measurement (1)
Measurement (1)
| Question | Answer |
|---|---|
| Mass | quantity of matter in a body |
| Time | |
| Length | a straight-line distance between two points |
| Temperature | how hot or cold an object is |
| Area | amount of space that covers an object |
| Volume | amount of space taken up by an object |
| meter | the length of the path travelled in vacuum during a time interval of 1/299,792,458 of a second (1983) |
| kilogram | mass of the international prototype of the kilogram(1901) |
| thermometer | instrument to measure temperature |
| opisometer | instrument to measure small curved distances |
| micrometer screwgauge | instrument to measure small widths |
| second | duration of 9 192 631 770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium-133 atom (1967) |