What are 2 properties of force?
It has two important properties: strength and direction. When two equal forces act in opposite directions the result is that the forces are balanced and there is no motion. The process of moving or changing position. When one force is stronger than the other the result is motion.
What are the types of force?
Types of Forces
| Contact Forces | Action-at-a-Distance Forces |
|---|---|
| Frictional Force | Gravitational Force |
| Tension Force | Electrical Force |
| Normal Force | Magnetic Force |
| Air Resistance Force |
What is SI unit of force?
The SI unit of force is the newton, symbol N. The base units relevant to force are: The metre, unit of length — symbol m. The kilogram, unit of mass — symbol kg. The second, unit of time — symbol s.
What is SI unit of force and pressure?
Pressure—the effect of a force applied to a surface—is a derived unit, obtained from combining base units. The unit of pressure in the SI system is the pascal (Pa), defined as a force of one Newton per square meter. The conversion between atm, Pa, and torr is as follows: 1 atm = 101325 Pa = 760 torr.
What is SI unit of force Class 8?
newton (N)
What is SI unit of force Class 9?
The S.I. unit of force is Newton. F = ma. 1 Newton = 1 kg x 1 m/s2.
What is SI unit of density?
Density is commonly expressed in units of grams per cubic centimetre. For example, the density of water is 1 gram per cubic centimetre, and Earth’s density is 5.51 grams per cubic centimetre. Density can also be expressed as kilograms per cubic metre (in metre-kilogram-second or SI units).
What is SI unit of volume?
The SI unit of volume is the cubic meter (m3), which is a derived unit. Liter (L) is a special name for the cubic decimeter (dm3). The symbol for the liter is uppercase letter “ell” (L) is preferred to avoid the risk of confusion between the lowercase letter “ell” (l) and the number one (1).
What is the symbol of volume?
Units and symbols
| Quantity measured | Unit | Symbol |
|---|---|---|
| Volume | millilitre | mL |
| litre | L | |
| cubic metre | m3 | |
| Speed, velocity | metre per second | m/s |
What is SI unit of potential difference?
The volt (symbol: V) is the derived unit for electric potential, electric potential difference (voltage), and electromotive force….
| Volt | |
|---|---|
| Unit system | SI derived unit |
| Unit of | Electric potential, electromotive force |
| Symbol | V |
| Named after | Alessandro Volta |
What is the smallest SI unit?
Prefixes
| Purpose | Name | Name |
|---|---|---|
| One | ||
| smaller quantities or sub units | deci | Tenth |
| centi | Hundredth | |
| milli | Thousandth |
What are the 7 SI units?
The seven SI base units, which are comprised of:
- Length – meter (m)
- Time – second (s)
- Amount of substance – mole (mole)
- Electric current – ampere (A)
- Temperature – kelvin (K)
- Luminous intensity – candela (cd)
- Mass – kilogram (kg)
What does the symbol 10 9 mean?
Table 5. SI prefixes
| Factor | Name | Symbol |
|---|---|---|
| 10-6 | micro | µ |
| 10-9 | nano | n |
| 10-12 | pico | p |
| 10-15 | femto | f |
What is 10 to the power of minus 9 called?
Negative powers
| Name | Power | Number |
|---|---|---|
| hundred-thousandth (Lacth) | −5 | 0.000 01 |
| millionth | −6 | 0.000 001 |
| billionth | −9 | 0./td> |
| trillionth | −12 | 0.001 |
What is μ in math?
The symbol ‘μ’ represents the population mean. The symbol ‘Σ Xi’ represents the sum of all scores present in the population (say, in this case) X1 X2 X3 and so on. The symbol ‘N’ represents the total number of individuals or cases in the population.
What is smaller than a pico?
The prefix pico means 10-12 (nano means 10-9). Even smaller are femto(10-15), atto(10-18), zepto(10-21), and yocto(10-24). pico (million-millionth), femto (million-billionth), atto (billion-billionth), zepto (billion-trillionth), yocto (trillion-trillionth).
What is Kilo Mega Giga Tera PETA?
Mega- means 1,000,000; a Megabyte is a million bytes. Giga- means 1, a Gigabyte is a billion bytes. Tera- means 1,000; a Terabyte is a trillion bytes. Peta- means 1,000,000; a Petabyte is 1,000 Terabytes. Exa- means 1, an Exabyte is 1,000 Petabytes.
How much is a pico?
Pico- (unit symbol p-) is a unit prefix in the metric system denoting a factor of 1 trillionth (0.; that is, 10-12.
What is Kilo mean?
In metric that means multiplying or dividing by 10, 100, 1000, etc. It consists of a partial word like “kilo” or “milli”. For example, the prefix “kilo” means “times a thousand” or “one thousand of” the units in question.
What is the full form of Kilo?
Kilo is a decimal unit prefix in the metric system denoting multiplication by one thousand (103). It is used in the International System of Units, where it has the symbol k, in lower case. The prefix kilo is derived from the Greek word χίλιοι (chilioi), meaning “thousand”.
What is a kilo in drug terms?
Drug bust unit. Dealer’s unit. 1,000 grams, briefly. 1,000 grams, for short.