Define the following terms: ]
1. Mass
2. Standard international unit of area
3. Random motion
4. Rest
5. Define density and its unit.
Answers
Answer:
1. Mass is the amount of matter present in a substance.
2. The S.I. unit of area is square meter or meter square which is written as m 2 . The International System of Units (SI) is the metric system used to measure the standards.
3.Random motion is a motion when an object in motion with no specific path and changes its motion suddenly.
4. Rest is the state of an object being stationary relative to a particular frame of reference or another object. When the position of a body concerning its surroundings does not change with time, it is said to be “at rest”.
5.The mass per unit volume of a substance is called its density. The unit of density is kgm^3.The kilogram per cubic meter (symbol: kg·m−3, or kg/m3) is an SI derived unit of density, defined by mass in kilograms divided by volume in cubic meters.
Explanation: