What is used to measure density?
Hydrometer
Hydrometer, device for measuring some characteristics of a liquid, such as its density (weight per unit volume) or specific gravity (weight per unit volume compared with water).
What are the two ways to calculate density?
Use the object’s mass and volume to find density. Density equals mass divided by volume.
What is the symbol for density?
letter rho
The symbol for density is the Greek letter rho, m = mass in g. v = volume in cm 3.
What is the unit of density?
Kilogram per cubic meter
Density/SI units
What are the 3 equations for density?
What are the three formulas for density?
- To work out density: p = m / V.
- To work out the mass: m = p x V.
- To work out the volume: V = m / p.
What is the SI unit of density class 11?
So, we have found that the SI unit of density is kilogram per cubic metre.
What is P m V?
Linear momentum (momentum for brevity) is defined as the product of a system’s mass multiplied by its velocity. In symbols, linear momentum p is defined to be p = mv, where m is the mass of the system and v is its velocity.
What is the formula if mass is missing?
Divide the object’s weight by the acceleration of gravity to find the mass. You’ll need to convert the weight units to Newtons. For example, 1 kg = 9.807 N. If you’re measuring the mass of an object on Earth, divide the weight in Newtons by the acceleration of gravity on Earth (9.8 meters/second2) to get mass.
What is SI unit of time?
second. The second, symbol s, is the SI unit of time. It is defined by taking the fixed numerical value of the cesium frequency ΔνCs, the unperturbed ground-state hyperfine transition frequency of the cesium 133 atom, to be 9 192 631 770 when expressed in the unit Hz, which is equal to s-1.
What’s the formula for calculating mass?
Mass is always constant for a body. One way to calculate mass: Mass = volume × density. Weight is the measure of the gravitational force acting on a mass. The SI unit of mass is “kilogram”.
What is the formula of calculating mass?
The mass formula is also given as. m = F / a. If acceleration itself is the gravity, then. M = F / g.
