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Units and Measurements -General Science, Exam Preparation Video Lecture | General Test Preparation for CUET

159 videos|341 docs|385 tests

FAQs on Units and Measurements -General Science, Exam Preparation Video Lecture - General Test Preparation for CUET

1. What are the SI units of length, mass, and time?
Ans. The SI unit of length is meter (m), mass is kilogram (kg), and time is second (s).
2. How is temperature measured and what are the common units for temperature?
Ans. Temperature is measured using a thermometer. The common units for temperature are Celsius (°C), Fahrenheit (°F), and Kelvin (K).
3. How can units be converted from one system to another?
Ans. Units can be converted from one system to another by using conversion factors. For example, to convert inches to centimeters, multiply the number of inches by 2.54.
4. What is the difference between accuracy and precision in measurements?
Ans. Accuracy refers to how close a measured value is to the true or accepted value, while precision refers to how close multiple measurements of the same quantity are to each other.
5. What are some commonly used prefixes in the metric system?
Ans. Some commonly used prefixes in the metric system are kilo- (k), centi- (c), and milli- (m). These prefixes represent factors of 1000, 1/100, and 1/1000, respectively.
159 videos|341 docs|385 tests
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