how is it? descriptions
2007-02-24 10:48:22 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Physics
A ruler
You put the 0 mark on one part of the distance to be measured and you look at the other part on the ruler and record the number - that is the distance in the units the ruler measures
A Laser Range Finder
You point it at the object to be measured (your position is 0) and read the distance. A laser beam is emitted and the reflection of the beam is measured - specifically the time it takes for the reflection to be detected is measured and distance calculated from s = d/t where s is the speed of light in air, t is the measured time and then d (= st) is calculated.
A micrometer
A Vernier Caliper
2007-02-24 10:53:23 · answer #1 · answered by Orinoco 7 · 0⤊ 0⤋
The instrument is an average man's thumb at the base of the nail. So sayeth King David I of Scotland. The number of times that the width of this thumb can be placed in the space to be measured is counted up and called inches.
2007-02-24 12:12:57 · answer #2 · answered by sojsail 7 · 0⤊ 0⤋
That depends on the distance to be measured. For short ones, all that is needed is a ruler or measuring tape. You need to be more specific with your question.
2007-02-24 10:52:56 · answer #3 · answered by Vincent G 7 · 0⤊ 0⤋
A meterstick. You hold it next to two points in space and look at the marks on it to determine the distance between the two points.
2007-02-24 10:52:57 · answer #4 · answered by Thomas G 3 · 0⤊ 0⤋
pedometer (step counter). you're able to enter the common length of your stride (desperate with the aid of strolling over a time-commemorated distance and counting your strides) to get a distance length. in case you want something, you're all the way down to GPS, i'm afraid.
2016-11-25 21:24:43 · answer #5 · answered by Anonymous · 0⤊ 0⤋