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zloy xaker [14]
3 years ago
14

What is measurement​

Physics
1 answer:
HACTEHA [7]3 years ago
5 0

Answer:

“Measurement” is the act of determining a target's size, length, weight, capacity, or other aspect. There are a number of terms similar to “measure” but which vary according to the purpose (such as “weight,” “calculate,” and “quantify.”) In general, measurement can be understood as one action within the term “instrumentation.”  

Explanation:

• To show measured results using values and symbols. • To use measurement tools.   Measuring a target can be done through either direct measurement or indirect measurement. An Indirect measurement is done, for example, by using a dial gauge to measure the height difference between a measurement target and a gauge block and using that height to indirectly determine the target's height. Because this type of measurement is based on a reference, indirect measurement is also referred to as “comparative measurement.

An ”Direct measurement is measurement done by bringing the target into contact with the measurement system to read the length, height, or other aspect directly. Although direct measurement allows measurement results to be known as they are, errors may occur depending on the skill of the person doing the measurement.

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A person swims to the other end of a 20m long pool and back. What is their displacement?
mafiozo [28]

Answer:

Zero

Explanation:

It is given that,

A person swims to the other end of a 20m long pool and back.

We need to find his displacement.

Displacement = shortest path covered

He reaches at the same position as from where he has started. It means the shortest path covered is equal to 0 i.e. his displacement is zero.

3 0
3 years ago
2. What value did you calculate for the index of refraction of the acrylic block in Part 2? How does your value compare to the a
lesya [120]

The percentage error in calculated value of the refractive index of acrylic block is calculated using the formula: (true value - calculated value/true value) × 100%.

<h3>What is refractive index of a refracting medium?</h3>

The refractive index of a medium is the ratio of the sine of the angle of incidence on the medium and the sine of the angle of refraction.

  • Refractive index = sin i/sin r

where;

  • i is the angle of incidence
  • r is angle of refraction.

The refractive index of a medium increases with density of the medium.

To determine the percentage error in determining the refractive index of a medium, the following formula is used:

  • Percent error = error/true value × 100%

Therefore, the percentage error in calculated value of the refractive index of acrylic block is the ratio of the error and true value multiplied by 100%.

Learn more about refractive index at: brainly.com/question/83184

8 0
3 years ago
A screw incorporates which other simple machine?
Radda [10]

Answer:

Inclined plane.

Explanation:

Geometrically, a screw is a narrow inclined plane that is wrapped around a cylinder. Like the other simple machines a screw can amplify force; a small rotational force (torque) on the shaft can exert a large axial force on a load.

A screw is a cylinder with a head (solid top) at one end and a pointed tip (like a nail) at the other end.

The mechanical advantage of the screw depends on the space between the threads and the length (and thickness) of the screw. The closer the threads are, the greater the mechanical advantage. It is easier to drive a screw into an object if the thread spacing is smaller.

3 0
3 years ago
Read 2 more answers
Myth: An organism's kingdom only describes physical characteristics. <br> Fact:<br> Evidence:
Advocard [28]
FACT: An organism's kingdom does not only describe physical characteristics. 

Organisms are classified into the different kingdoms based on physical appearance, their function, how they reproduce and how they obtain their food. 

EVIDENCE:
Kingdom Plantae: They obtain their food through photosynthesis
                              Reproduce asexually.
Kingdom Animalia : They obtain their food through hunting or consuming                                        other organisms.        
                              Reproduce sexually.
7 0
4 years ago
Which kind of radio waves are used by television stations to carry sound?
pochemuha
They are called <span>Frequency-modulated</span>
5 0
4 years ago
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