A structure is in equilibrium when all forces or moments acting upon it are balanced. This means that each and every force acting upon a body, or part of the body, is resisted by either another equal and opposite force or set of forces whose net result is zero.
What is the name of Chapter 2 physics class 11?
NCERT Solutions for Class 11 Physics Chapter 2 Units and Measurements.
What is vectors and equilibrium?
Equilibrium of vectors means simply that the sum of the vectors equals zero. In the first experiment we will hang weights attached by a string to a central point, and determine the direction where the weights must be located so that the entire apparatus is in equilibrium.
What is the name of Chapter 2 physics?
Chapter 1- Electric Fields and Charge. Chapter 2- Electrostatic Potential and Capacitance. Chapter 3- Current Electricity. Chapter 4- Moving Charges and Magnetism.
What are errors Class 11?
Error. The uncertainty in the measurement of a physical quantity is called an error.
What is parallax Class 11?
Parallax is the shift of a point as viewed from different lines of sight. Generally, different objects exist at different distances from our eyes. So if two persons were to observe a given point against the same background, They would see the point at different positions relative to the background.
What are the 3 types of equilibrium?
There are three types of equilibrium: stable, unstable, and neutral. Figures throughout this module illustrate various examples.
How do you calculate static equilibrium?
An object is in static equilibrium if and only if: The sum of the forces on it in each direction is zero. The sum of the torques on it in each direction is zero. Its linear momentum is zero (i.e. it’s not moving).
What is unit Grade 11?
The reference standard used to measure the physical quantities is called the unit. Units are classified as fundamental units and derived units. SI system is the most commonly used system of units. The SI is based on seven basic units and two supplementary units.
What is a unit Ncert?
UNITS AND MEASUREMENT. 2.1 INTRODUCTION Measurement of any physical quantity involves comparison with a certain basic, arbitrarily chosen, internationally accepted reference standard called unit. The result of a measurement of a physical quantity is expressed by a number (or numerical measure) accompanied by a unit.
Is additional exercises in physics important for boards?
No..they are not much important in point of view of exam…
Can I study NLM without kinematics?
Yes they are related to each other . The motion in 1D, 2D,3D sections are part of the application of laws of motion subjects and are very important. In NEET, at least 2-4 questions come from this very topic. Try not skipping it as you may lose 16 marks which creates a huge rank difference.
Is Class 11 Chemistry hard?
It is one of the easiest branch of Chemistry if read properly or it can become the toughest branch if not read in correct manner.
Is class 11 biology hard?
Many students opt for Biology thinking it is an easy and interesting subject. But after seeing the vast syllabus of class 11, they tend to realize that it requires some hard work to get good marks in this subject. Syllabus of Class 11 Biology is completely different from that of class 10.
What are 5 types of errors?
- Constant error. Constant errors are those which affect the result by the same amount.
- Systematic error.
- Random error.
- Absolute error.
- Relative error.
- Percentage error.
What is an zero error?
Zero error is defined as the condition where a measuring instrument records a reading when no reading is required. In case of Vernier calipers it occurs when a zero on the main scale does not coincide with a zero on Vernier scale it is called zero error for Vernier.
What is absolute error class 11?
The absolute error is the “difference between the measured value and the actual value”.
What is the larger unit of length?
Answer and Explanation: Kilometers are the longest unit of metric measurement. The abbreviation for kilometers is ‘km”. Like miles, kilometers are used to measure long distances, There are 1,000 meters in a kilometer.
What is range length?
The range of lengths in the universe is vast, best expressed in terms of orders of magnitude, also called powers of ten. It is often hard to decide how small or large a length is when expressed in these terms and it is useful to compare such a length with actual lengths. A range of magnitudes of lengths is shown below.
Is parallax method important for NEET?
The Units and Measurements NEET questions focus on explaining and providing the questions that have a higher probability of getting in the examination. Among those questions, the propagation of errors and the parallax angle method are quite important.
What is stable force?
Stability is a measure of how likely it is for an object to topple over when pushed or moved. Stable objects are very difficult to topple over, while unstable objects topple over very easily. An object will topple over if its centre of gravity is ‘outside’ the base, or edge, on which it balances.
What is static force?
A force acting on an object is said to be a static force if it does not change the size, position, or direction of that particular object. The force applied to a structure acts as a load to that particular structure, which is why static force is also known as a static load.
Is torque an equilibrium?
A torque is a vector quantity which means that it has both a magnitude (size) and a direction associated with it. If the size and direction of the torques acting on an object are exactly balanced, then there is no net torque acting on the object and the object is said to be in equilibrium.
What is moment of couple?
Moment of couple is equal to the product of either of forces and the perpendicular distance between the forces. Its SI unit is Nm.
Can net force be equal to zero?
The net force is the vector sum of all the forces acting on an object. When an object is in equilibrium (either at rest or moving with constant velocity), the net force acting on it zero. A vector can only have zero magnitude if all of its components are zero.