CBSE Class 11th Acceleration Details & Preparations Downloads
What is Acceleration ?
Acceleration is a fundamental concept in physics that describes how an object's velocity changes over time. In simpler terms, it measures how quickly the speed of an object is changing, including the direction of that change. Acceleration is a vector quantity, which means it has both magnitude (how much the speed changes) and direction.
The standard unit of acceleration in the International System of Units (SI) is metres per second squared (m/s2 ). Here are some key points about acceleration:
Rate of Change of Velocity:
Acceleration is defined as the rate of change of velocity per unit of time. If an object is getting faster, slower, or changing direction, it is experiencing acceleration.
Vector Quantity:
Acceleration is a vector, meaning it has both magnitude and direction. For example, a car accelerating around a curve experiences both a change in speed and a change in direction.
Equation of Motion:
The relationship between initial velocity (u), final velocity (acceleration(a), and time (t) is described by the equation:
v=u+at
Where v is the final velocity, u is the initial velocity, a is the acceleration, and t is the time.
Units:
Acceleration is measured in units of distance per time squared. For example, if an object's speed changes by 1 metre per second in 1 second, its acceleration is 1 m/s2.
Graphical Representation:
On an acceleration-time graph, the slope represents the rate of change of acceleration. A steeper slope indicates a faster change in acceleration.
Types of Acceleration :
Acceleration can manifest in various forms depending on the factors influencing the change in velocity. Here are some common types of acceleration:
Linear Acceleration:
This is the most basic form of acceleration and refers to changes in an object's speed along a straight path. It can be positive (speeding up) or negative (slowing down).
Tangential Acceleration:
Tangential acceleration occurs when an object in circular motion experiences a change in its tangential speed. It is always directed tangent to the circular path and is perpendicular to the radial acceleration.
Radial (Centripetal) Acceleration:
Radial or centripetal acceleration occurs when an object moves in a circular path. It is directed toward the centre of the circle and is responsible for keeping the object in its circular trajectory.
Angular Acceleration:
Angular acceleration occurs when an object rotates or spins. It represents the rate of change of angular velocity. Like linear acceleration, it can be positive (increasing rotation speed) or negative (decreasing rotation speed).
Negative Acceleration (Deceleration):
Sometimes referred to as deceleration, negative acceleration occurs when an object is slowing down. It can be due to external forces like friction or air resistance.
What is an Acceleration Unit ?
Acceleration is a measure of how quickly the velocity of an object changes. In the International System of Units (SI), acceleration is typically measured in units of metres per second squared (m/s2). Here's the standard unit for acceleration:
Metres per Second Squared (m/s2):
This unit signifies the change in velocity (in metres per second) per unit of time squared. For example, if an object's velocity changes by 1 metre per second over a period of 1 second, its acceleration is 1 m/s2.
Kilometres per Hour Squared (km/h2):
In some cases, especially in everyday scenarios like automotive acceleration, acceleration might be expressed in units of kilometres per hour squared.
Difference between Acceleration and Velocity.
1. Definition:
Velocity: Velocity is a vector quantity that describes the rate at which an object changes its position. It includes both the speed of the object and the direction in which it is moving.
Acceleration: Acceleration is also a vector quantity, but it describes the rate at which an object changes its velocity. It includes both the magnitude and direction of the change in velocity.
2. Nature:
Velocity: Velocity is associated with the motion of an object. It can be constant (unchanging), increasing (speeding up), decreasing (slowing down), or changing direction.
Acceleration: Acceleration specifically describes how the velocity of an object changes. An object can be accelerating even if its speed is constant, as long as the direction of motion changes.
3. Units:
Velocity: The SI unit of velocity is metres per second (m/s). It is a measure of the rate of change of position.
Acceleration: The SI unit of acceleration is metres per second squared m/s2). It is a measure of the rate of change of velocity.
4. Calculation:
Velocity: Velocity is calculated as the rate of change of position with respect to time. Mathematically, it is expressed as v=ΔtΔx, where v is velocity, Δx is the change in position, and Δt is the change in time.
Acceleration: Acceleration is calculated as the rate of change of velocity with respect to time. Mathematically, it is expressed as
a=ΔtΔv, where a is acceleration, Δv is the change in velocity, and Δt is the change in time.
5. Direction:
Velocity: Velocity has both magnitude (speed) and direction. It is a vector quantity that specifies how fast an object is moving and in which direction.
Acceleration: Acceleration is a vector quantity that also has both magnitude and direction. It indicates how fast the velocity of an object is changing and in which direction the change is occurring.
CBSE Class 11th Downloadable Resources
1. CBSE Class 11th Topic Wise Summary | View Page / Download |
2. CBSE Class 11th NCERT Books | View Page / Download |
3. CBSE Class 11th NCERT Solutions | View Page / Download |
4. CBSE Class 11th Exemplar | View Page / Download |
5. CBSE Class 11th Previous Year Papers | View Page / Download |
6. CBSE Class 11th Sample Papers | View Page / Download |
7. CBSE Class 11th Question Bank | View Page / Download |
8. CBSE Class 11th Topic Wise Revision Notes | View Page / Download |
9. CBSE Class 11th Last Minutes Preparation Resources | View Page / Download |
10. CBSE Class 11th Best Reference Books | View Page / Download |
11. CBSE Class 11th Formula Booklet | View Page / Download |
Being in CBSE class 11th and considering the board examinations you must be needing resources to excel in your examinations. At TestprepKart we take great pride in providing CBSE class 11th all study resources in downloadable form for you to keep you going.
Below is the list of all CBSE class 11th Downloads available on TestprepKart for both Indian and NRI students preparing for CBSE class 11th in UAE, Oman, Qatar, Kuwait & Bahrain.
SAMPLE PRACTICE QUESTIONS OF SIGNIFICANT FIGURES :
Q1. What is Acceleration?
Answer: Acceleration is a vector quantity that represents the rate of change of an object's velocity. It can involve changes in speed, direction, or both.
Q2. How is Acceleration Different from Velocity?
Answer: Velocity is the rate of change of an object's displacement, including its direction. Acceleration, on the other hand, is the rate of change of velocity and can involve changes in speed, direction, or both.
Q3. What is the SI Unit of Acceleration?
Answer: The SI unit of acceleration is meters per second squared (m/s²).
Q4. How is Acceleration Calculated?
Answer: Acceleration (a) is calculated as the change in velocity (Δv) divided by the change in time (Δt). Mathematically, a=ΔtΔv.
Q5. What is Uniform Acceleration?
Answer: Uniform acceleration occurs when an object's velocity changes at a constant rate over equal intervals of time. In this case, the acceleration remains constant.
Class 11th CBSE Physics Chapters |
Chapter1: UNITS AND MEASUREMENTS |
Chapter2: MOTION IN A STRAIGHT LINE |
> Introduction |
> Instantaneous velocity and speed |
> Kinematic equations for uniformly accelerated motion |
Chapter3: MOTION IN A PLANE |
Chapter4: LAWS OF MOTION |
Chapter5: WORK, ENERGY AND POWER |
Chapter6: SYSTEM OF PARTICLES AND ROTATIONAL MOTION |
Chapter7: GRAVITATION |
Chapter8: MECHANICAL PROPERTIES OF SOLIDS |
Chapter9: MECHANICAL PROPERTIES OF FLUIDS |
Chapter10: THERMAL PROPERTIES OF MATTER |
Chapter12: KINETIC THEORY |
Chapter13: OSCILLATIONS |
Chapter14: WAVES |
Class 11th CBSE Chemistry Chapters |
Chapter1: SOME BASIC CONCEPTS OF CHEMISTRY |
Chapter2 : STRUCTURE OF ATOMS |
Chapter3: CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES |
Chapter4: CHEMICAL BONDING AND MOLECULAR STRUCTURE |
Chapter5: THERMODYNAMICS |
Chapter6: EQUILIBRIUM |
Chapter7: REDOX REACTIONS |
Chapter8: ORGANIC CHEMISTRY - SOME BASIC PRINCIPLE AND TECHNIQUES |
Chapter9: Hydrocarbons HYDROCARBONS |
Class 11th CBSE Mathematics chapter |
Chapter1: SETS |
Chapter2: RELATIONS AND FUNCTIONS |
Chapter3: TRIGONOMETRIC FUNCTIONS |
Chapter4: COMPLEX NUMBER AND QUADRATIC EQUATIONS |
Chapter5: LINEAR INEQUALITIES |
Chapter6: PERMUTATIONS AND COMBINATIONS |
Chapter7: BINOMIAL THEOREM |
Chapter8: SEQUENCES AND SERIES |
Chapter9: STRAIGHT LINES |
Chapter10: CONIC SECTIONS |
Chapter11: INTRODUCTION TO THREE-DIMENSIONAL GEOMETRY |
Chapter12: LIMITS AND DERIVATIVES |
Chapter13: STATISTICS |
Chapter14: PROBABILITY |
Class 8 Link soon |
Class 9 Link soon |
Class 10 Link soon |
Class 12 Link soon |