What is the full form of Si police?
A sub-inspector (SI) is generally in command of few police personnel (with head constables, the equivalent of corporals, commanding police outposts). He is the lowest ranked officer who under Indian Police rules and regulations can file a charge sheet in court, and is usually the first investigating officer.
What forces act on a mousetrap car?
Friction is a force that acts against the motion of all moving objects. Energy is required to overcome friction and keep an object moving. Mousetrap cars start with a limited supply of energy. This energy is used to overcome friction and propel the vehicle.
What is the advantages of SI unit?
The greatest advantage of SI is that it has only one unit for each quantity (type of measurement). This means that it is never necessary to convert from one unit to another (within the system) and there are no conversion factors for students to memorize.
Where should I place the mousetrap for the best performance?
For optimal performance the mouse trap should be positioned on the chassis so that the tip of the lever arm falls directly above the drive axle when the mouse trap is in the fully wound position (as pictured bellow). If the mouse trap is not aligned properly with the drive axle energy will be wasted off the start.
How do you make a fast mousetrap car?
Making The Vehicle Faster
- Thicken the axle: Wrapping some tape radially around the axle or adding a spool. It may be surprising as to how much faster this makes the vehicle.
- Use smaller wheels. They will require less force to complete a rotation.
- Make the vehicle lighter.
Which is the SI unit of acceleration?
The SI unit of acceleration is metres/second2 (m/s2).
Why are SI units used?
SI units are interrelated in such a way that one unit is derived from other units without conversion factors. SI is used in most places around the world, so our use of it allows scientists from disparate regions to use a single standard in communicating scientific data without vocabulary confusion.
How is the balance of a wheel around its center related to the vehicle’s performance?
How is the balance of a wheel, around its center, related to the vehicle’s performance? The wheel must be balanced around its center if the vehicle is to perform well otherwise the lack of balance could make for a wobbly, bumpy ride – that is, if the wheel is able to turn at all.
Which is the SI unit?
There are seven basic units in the SI system: the meter (m), the kilogram (kg), the second (s), the kelvin (K), the ampere (A), the mole (mol), and the candela (cd).
Is CM a SI unit?
The base unit of length in the SI system is the meter(m). The meter, approximately 10% longer than a yard, is equivalent to 39.37 inches, or 1.094 yards….
|Unit of length||Relationship to base unit|
|centimeter (cm)||100 cm = 1 m|
|millimeter (mm)||1000 mm = 1 m|
|micrometer (µm)||106 µm = 1 m|
|nanometer (nm)||109 nm = 1 m|
What is full form of Si in physics?
International System of Units (SI), French Système International d’Unités, international decimal system of weights and measures derived from and extending the metric system of units.
What SI unit means?
The SI base units are the standard units of measurement defined by the International System of Units (SI) for the seven base quantities of what is now known as the International System of Quantities: they are notably a basic set from which all other SI units can be derived.
Why SI unit is accepted worldwide?
SI units are ok interrelated in such a way that one unit is derived from other units without conversion factors. SI is used in the most places around the world, so our use of it allows scientists from disparate regions to use a single standard in communicating scientific data without vocabulary confusion.
What is the SI unit of velocity and speed?
meter per second
What are the 4 laws of physics?
Fundamental force, also called fundamental interaction, in physics, any of the four basic forces—gravitational, electromagnetic, strong, and weak—that govern how objects or particles interact and how certain particles decay.