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Ans: Screw gauges can give more precise lengths than vernier calipers because of the smaller least count of screw gauges. Explanation: The smaller the least count of an instrument, the more precise will be its reading. A typical screw gauge has a least count of 0.01 mm or 0.001 cm while a typical vernier caliper … Read more
Ans: Displacement is a vector quantity because it has both magnitude and direction. When an object moves from one position to another, its displacement is the straight-line distance between the initial and final positions, along with the direction from the starting point to the ending point. On the other hand, energy is a scalar quantity … Read more
Ans: To show that the prefix “micro” is a thousand times smaller than the prefix “milli”, we can look at the definitions of these prefixes according to the International System of Units (SI). The prefix “milli” (symbol: m) represents 10-3 or 1/1000 of a unit. The prefix “micro” (symbol: μ) represents 10-6 or 1/1000000 of … Read more
(a) Force: Force F = ma SI Unit of force is Newton (N) = kgms-2 Base quantities involved in force a mass, length, and time. (b) Pressure: Pressure = force/area Pressure = F/A The SI unit of force (F = ma) is Newton N = kgms and unit of area A is m² = kgm … Read more
Ans: Suppose my age = 15 years = 15 x 365 = 5475 days (1 year = 365 days) = 5475 x 24 = 131400 hours (1 day = 24 Hours) = 131400 x 60 = 7884000 minutes (1 hour = 60 Minutes) = 7884000 x 60 = 473040000 seconds … Read more
Ans: Physics in Science: Physics is the most fundamental of all the sciences. To study biology, chemistry, or any other natural science, one should have a firm understanding of physics principles. Example: For example, biology uses the physics principles of fluid movement to understand how the blood flows through the heart, arteries, and veins. Chemistry … Read more
Related Questions: Kinematics-mcq Q.2 Estimate your age in minutes and seconds. Q.10 Why do we need to consider significant digits in measurements? Q11. How random error can be reduced? Q12. Differentiate between precision and accuracy. Q.1 Define Physics. Describe its revolutionary role in technology. Q2. List with brief descriptions of different branches of physics. Q1. … Read more
Related Questions: Dynamics-1 Dynamics-II Pressure and Deformation in Solids Work and Energy Density and Temperature Q.7 Differentiate between Mechanical Stopwatch and Digital Stopwatch. Q.8 How measuring cylinder is used to measure the volume of an irregularly shaped stone? Q.9 What precautions should be kept in mind while taking measurements using a measuring cylinder? Q.10 Why … Read more
Related Questions: Dynamics-1 Dynamics-II Pressure and Deformation in Solids Work and Energy Magnetism Q.7 Differentiate between Mechanical Stopwatch and Digital Stopwatch. Q.8 How measuring cylinder is used to measure the volume of an irregularly shaped stone? Q.9 What precautions should be kept in mind while taking measurements using a measuring cylinder? Q.10 Why do we … Read more
Related Questions: Dynamics-1 Dynamics-II Pressure and Deformation in Solids Density and Temperature Magnetism Q.7 Differentiate between Mechanical Stopwatch and Digital Stopwatch. Q.8 How measuring cylinder is used to measure the volume of an irregularly shaped stone? Q.9 What precautions should be kept in mind while taking measurements using a measuring cylinder? Q.10 Why do we … Read more