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 Physical Quantities and Measurement 40 Flashcards |
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What is the unit of area in the Standard International system? |
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Square meter (m²) |
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Fill in the blank: One hectare is equal to ______ square meters. |
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10,000 |
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True or False: The area of a rectangular surface is calculated using the formula A = Length + Breadth. |
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False. The area is calculated using the formula A = Length × Breadth. |
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Riddle: I am the amount of space an object occupies, often measured in cubic units. What am I? |
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Volume |
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Which of the following is a smaller unit of volume? A) m³ B) cm³ C) km³ D) l |
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B) cm³ |
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Fill in the blank: The volume of a cube is calculated using the formula V = ______. |
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(Length)³ |
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True or False: Density is defined as the mass of an object divided by its volume. |
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True |
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What is the formula for calculating the volume of a cylinder? |
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Volume = π × (Radius)² × Height |
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Riddle: I am the unit used to measure the volume of liquids, often found in kitchens. What am I? |
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Litre (l) |
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Which of the following is a larger unit of area? A) square centimeter B) square meter C) square millimeter D) square decimeter |
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B) square meter |
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Fill in the blank: The density of a substance is measured in ______ in the SI system. |
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Kg/m³ |
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True or False: The volume of a solid can be determined by measuring the water it displaces. |
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True |
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What is the relationship between mass, volume, and density? |
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Density = Mass ÷ Volume |
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Riddle: I change with temperature, but my mass remains constant. What am I? |
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Density |
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Which is the correct formula to find the volume of a cuboid? |
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Volume = Length × Breadth × Height |
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Fill in the blank: The area of a square is calculated using the formula A = ______. |
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Side × Side |
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True or False: The unit of density in the CGS system is g/m³. |
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False. The unit of density in the CGS system is g/cm³. |
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What does the term 'sub-multiples of standard units' refer to? |
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It refers to smaller units derived from standard units, such as cm² and mm² from m². |
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Riddle: I am measured in m/s, I tell you how fast something moves. What am I? |
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Speed |
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Which of the following is an example of non-uniform speed? A) A train running at a constant speed B) A car accelerating C) A bicycle moving steadily D) A bus on a straight road |
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B) A car accelerating |
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Completed! Keep practicing to master all of them. |
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