science assignment solutions
Answers
Answer:
Short Answer
1.a.how hot or cold something is
b.how hot or cold a person’s body is
2.In photometry, luminous flux or luminous power is the measure of the perceived power of light. It differs from radiant flux, the measure of the total power of electromagnetic radiation, in that luminous flux is adjusted to reflect the varying sensitivity of the human eye to different wavelengths of light.
3.a three-dimensional analogue of an angle, such as that subtended by a cone or formed by planes meeting at a point. It is measured in steradians.
4.Four factors may affect the accuracy of pressure measurement in any of the above steps: (a) Contact time; the amount of time that the testing subject/object applied force on the pressure mat before calibratiodmeasurement is taken; (b) Contact area; the area recorded by the computer when the testing subjectjobject makes ..
5.Atomic clocks are actually quartz clocks—just like the ones you have at home. The difference is that an ordinary quartz clock relies purely on the oscillations of its quartz crystal to count seconds.