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Little shop of physics
Home
About us
Units and measurement
1.1 Introduction
1.2 System of unit
1.2.1 Fundamental Quantities and Units
1.2.2 Derived Quantities and Units
1.2.3 Conventions for the use of SI Units
1.3 Measurement of length
1.3.1 Measurements of Large Distance
1.3.2 Measurement of Distance to Stars
1.3.3 Measurement of the Size of a Planet or a Star
1.3.4 Measurement of Very Small Distances
1.4 Measurement of mass
1.5 Measurement of time
1.6 Dimensions and dimensional analysis
1.7 Accuracy, precision & uncertainty in measurement
1.8 Errors in measurement
1.9 Significant error
Activity
Can you tell?
Quiz
Motion in a plane
2.1 Introduction
2.2 Rectilinear motion
2.3 Motion in two dimensions- motion in a plane
2.3.1 Average and Instantaneous Velocities:
2.3.2 Average and Instantaneous Acceleration
2.3.3 Motion for an Object travellinging a Plane with Uniform acc.
2.3.4 Relative Velocity
2.3.5 Projectile Motion
2.4 Uniform circular motion
Always Remember
Do you know
Quiz
Sound
3.1 Introduction
3.2 Common Properties of all Waves
3.3 Transverse Waves and Longitudinal Waves
3.4 The Speed of Travelling Waves
3.5 Principle of Superposition of Waves
3.6 Echo, reverberation and acoustics
3.7 Qualities of sound
3.8 Doppler Effect
Always remember
Do you know?
Activity
Quiz
Magnetism
4.1 Introduction
4.2 Magnetic Lines of Force and Magnetic Field
4.3 The Bar magnet
4.4 Gauss' Law of Magnetism
4.5 Earth’s Magnetism
Do you know ?
Try this
Quiz
EM waves & communication system
5.1 Introduction
5.2 EM wave
5.2.1 Sources of EM waves
5.2.2 Characteristics of EM waves
5.3 Electromagnetic Spectrum
5.3.1 Radio waves
5.3.2 Microwaves
5.3.3 Infrared waves
5.3.4 Visible light
5.3.5 Ultraviolet rays
5.3.6 X-rays
5.3.7 Gamma Rays
5.4 Propagation of EM Waves
5.4.1 Ground (surface) wave
5.4.2 Space wave
5.4.3 Sky wave propagation
5.5 Introduction to Communication System
5.5.1 Elements of a communication system
5.5.2 Commonly used terms in electronic communication system
5.6 Modulation
Do you know?
Quiz
References
Contact us
Little shop of physics
Home
About us
Units and measurement
1.1 Introduction
1.2 System of unit
1.2.1 Fundamental Quantities and Units
1.2.2 Derived Quantities and Units
1.2.3 Conventions for the use of SI Units
1.3 Measurement of length
1.3.1 Measurements of Large Distance
1.3.2 Measurement of Distance to Stars
1.3.3 Measurement of the Size of a Planet or a Star
1.3.4 Measurement of Very Small Distances
1.4 Measurement of mass
1.5 Measurement of time
1.6 Dimensions and dimensional analysis
1.7 Accuracy, precision & uncertainty in measurement
1.8 Errors in measurement
1.9 Significant error
Activity
Can you tell?
Quiz
Motion in a plane
2.1 Introduction
2.2 Rectilinear motion
2.3 Motion in two dimensions- motion in a plane
2.3.1 Average and Instantaneous Velocities:
2.3.2 Average and Instantaneous Acceleration
2.3.3 Motion for an Object travellinging a Plane with Uniform acc.
2.3.4 Relative Velocity
2.3.5 Projectile Motion
2.4 Uniform circular motion
Always Remember
Do you know
Quiz
Sound
3.1 Introduction
3.2 Common Properties of all Waves
3.3 Transverse Waves and Longitudinal Waves
3.4 The Speed of Travelling Waves
3.5 Principle of Superposition of Waves
3.6 Echo, reverberation and acoustics
3.7 Qualities of sound
3.8 Doppler Effect
Always remember
Do you know?
Activity
Quiz
Magnetism
4.1 Introduction
4.2 Magnetic Lines of Force and Magnetic Field
4.3 The Bar magnet
4.4 Gauss' Law of Magnetism
4.5 Earth’s Magnetism
Do you know ?
Try this
Quiz
EM waves & communication system
5.1 Introduction
5.2 EM wave
5.2.1 Sources of EM waves
5.2.2 Characteristics of EM waves
5.3 Electromagnetic Spectrum
5.3.1 Radio waves
5.3.2 Microwaves
5.3.3 Infrared waves
5.3.4 Visible light
5.3.5 Ultraviolet rays
5.3.6 X-rays
5.3.7 Gamma Rays
5.4 Propagation of EM Waves
5.4.1 Ground (surface) wave
5.4.2 Space wave
5.4.3 Sky wave propagation
5.5 Introduction to Communication System
5.5.1 Elements of a communication system
5.5.2 Commonly used terms in electronic communication system
5.6 Modulation
Do you know?
Quiz
References
Contact us
More
Home
About us
Units and measurement
1.1 Introduction
1.2 System of unit
1.2.1 Fundamental Quantities and Units
1.2.2 Derived Quantities and Units
1.2.3 Conventions for the use of SI Units
1.3 Measurement of length
1.3.1 Measurements of Large Distance
1.3.2 Measurement of Distance to Stars
1.3.3 Measurement of the Size of a Planet or a Star
1.3.4 Measurement of Very Small Distances
1.4 Measurement of mass
1.5 Measurement of time
1.6 Dimensions and dimensional analysis
1.7 Accuracy, precision & uncertainty in measurement
1.8 Errors in measurement
1.9 Significant error
Activity
Can you tell?
Quiz
Motion in a plane
2.1 Introduction
2.2 Rectilinear motion
2.3 Motion in two dimensions- motion in a plane
2.3.1 Average and Instantaneous Velocities:
2.3.2 Average and Instantaneous Acceleration
2.3.3 Motion for an Object travellinging a Plane with Uniform acc.
2.3.4 Relative Velocity
2.3.5 Projectile Motion
2.4 Uniform circular motion
Always Remember
Do you know
Quiz
Sound
3.1 Introduction
3.2 Common Properties of all Waves
3.3 Transverse Waves and Longitudinal Waves
3.4 The Speed of Travelling Waves
3.5 Principle of Superposition of Waves
3.6 Echo, reverberation and acoustics
3.7 Qualities of sound
3.8 Doppler Effect
Always remember
Do you know?
Activity
Quiz
Magnetism
4.1 Introduction
4.2 Magnetic Lines of Force and Magnetic Field
4.3 The Bar magnet
4.4 Gauss' Law of Magnetism
4.5 Earth’s Magnetism
Do you know ?
Try this
Quiz
EM waves & communication system
5.1 Introduction
5.2 EM wave
5.2.1 Sources of EM waves
5.2.2 Characteristics of EM waves
5.3 Electromagnetic Spectrum
5.3.1 Radio waves
5.3.2 Microwaves
5.3.3 Infrared waves
5.3.4 Visible light
5.3.5 Ultraviolet rays
5.3.6 X-rays
5.3.7 Gamma Rays
5.4 Propagation of EM Waves
5.4.1 Ground (surface) wave
5.4.2 Space wave
5.4.3 Sky wave propagation
5.5 Introduction to Communication System
5.5.1 Elements of a communication system
5.5.2 Commonly used terms in electronic communication system
5.6 Modulation
Do you know?
Quiz
References
Contact us
Always Remember
For uniform rectilinear motion,
i.e., for an object moving with constant velocity along a straight line
1. The average and instantaneous velocities are equal.
2. The average and instantaneous speeds are the same and are equal to the magnitude of the velocity.
For nonuniform rectilinear motion
1. The average and instantaneous velocities are different.
2. The average and instantaneous speeds are different.
3. The average speed will be different from the magnitude of average velocity
For uniform acceleration, for a rectilinear motion:
1. Velocity-time graph is linear.
2. The area under the velocity-time graph between two instants of time t1 and t2 gives the displacement of the object during that time interval.
3. The slope of the velocity-time graph is the acceleration of the object.
For nonuniform acceleration in a rectilinear motion:
1. Velocity-time graph is nonlinear.
2. The area under the velocity-time graph between two instants of time t1 and t2 gives the displacement of the object during that time interval.
3. The instantaneous acceleration of the object at a given time is equal to the slope of the tangent to the curve at that point.
While using the concept of area under the curve, the origin of the velocity axis (for v-t graph) must be zero.
Motion in two dimensions can be resolved into two independent motions in mutually perpendicular directions.
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