Tiêu đề Integrated Series 6th Class Physics - Solutions.pdf ✅

Class 6 Physics Table of Content 1. Physical Quantities and Measurements 1 – 8 2. Motion and Measurement of Distance 9 - 18 3. Force, Work, and Energy 19 - 37 4. Light, Shadows and Reflection 38 – 57 5. Electricity and Circuits 58 – 66 6. Fun with Magnets 67 – 77

Class 6 – Physics | I – 6 Physical Quantities and Measurements 1 1. Physical Quantities and Measurements SOLUTIONS LEVEL – I 1. Correct option: (A) Measurement is basically a comparison process. It involves the selection of a unit of measurement and comparing the quantity with standard unit. The standard chosen should be of the same nature as that of the quantity to be measured. For example, if we have to measure the length of a rod, we have to take length as the standard quantity. 2. Correct option: (D) Distance between two places is measured in kilometers, because kilometer is a larger unit for measurement of length. 3. Correct option: (B) 1 cm = 10 mm 4. Correct option: (A) 1 meter = 100 centimeter 3 meters = 3 x 100 centimeter = 300 centimeters 5. Correct option: (D) Dimensions of a football ground cannot be measured in centimeters because centimeter is a smaller unit of measuring length. Dimensions of football ground are measured in meters. 6. Correct option: (A) The radius of a sphere is half of its diameter. If radius of the sphere = r Diameter of the sphere(d) = 2r Or radius of the sphere = d/2 7. Correct option: (D) Galileo experimented with various pendulums and he found that a pendulum of a given length takes always the same time to complete one oscillation. Simple Pendulum executes oscillatory motion which is periodic means it repeats itself after fixed intervals of time. Hence, simple pendulum can be used to measure time. Hand span, stride and foot are used to measure length. 8. Correct option: (A) Thickness of credit card is about 0.76 mm. Hence, thickness of credit card is about a millimeter.