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Showing posts with the label Physics

### What is a median in math?

What is a median in math? The median is the middle number in a sorted, ascending or descending, list of numbers and can be more descriptive of that data set than the average. Median is the middle number in a sorted list of numbers. To determine the median value in a sequence of numbers, the numbers must first be sorted, or arranged, in value order from lowest to highest or highest to lowest. If there is an odd amount of numbers, the median value is the number that is in the middle, with the same amount of numbers below and above. If there is an even amount of numbers in the list, the middle pair must be determined, added together, and divided by two to find the median value. The median is sometimes used as opposed to the mean when there are outliers in the sequence that might skew the average of the values.  You may like What is manifesting? What is electric Charge? What is Binary? What is physics? What is pH scale? What is quantum mechanics?

### Modern Physics and Electronics

Physics Chapter - 13: Modern Physics and Electronics ðŸ‘‰   All Chapter Contents   ðŸ‘ˆ   13.1 Radioactivity 13.2 Development of Electronics 13.3 Analog and Digital Electronics 13.4 Semiconductor 13.5 Information and Communications Technology 13.6 Internet and E-mail 13.7 Effective Use of ICT Question Bank 13.1  Radioactivity 13.2 Development of Electronics 13.3 Analog and Digital Electronics 13.4 Semiconductor 13.5 Information and Communications Technology 13.6 Internet and E-mail 13.7 Effective Use of ICT Secondary Physics Chapter - 1 :  Physical Quantities and Their Measurements Chapter - 2 :  Motion Chapter - 3 :  Force Chapter - 4 :  Work, Power, and Energy Chapter - 5 :  State of Matter and Pressure Chapter - 6 :  Effect of Heat on Matter Chapter - 7 :  Waves and Sound Chapter - 8 :  Reflection of Light Chapter - 9 :  Refraction of Light Chapter - 10 :  Static Electricity Chapter - 11 :  Current Electricity Chapter - 12 :  Magnetic Effects of Current Chapter - 13 :  Modern Physics an

### Magnetic Effects of Current

Physics Chapter - 12: Magnetic Effects of Current ðŸ‘‰   All Chapter Contents   ðŸ‘ˆ   12.1 Magnet 12.2 Magnetic Effects of Current 12.3 Electromagnetic Induction Question Bank 12.1  Magnet 12.2 Magnetic Effects of Current 12.3 Electromagnetic Induction Secondary Physics Chapter - 1 :  Physical Quantities and Their Measurements Chapter - 2 :  Motion Chapter - 3 :  Force Chapter - 4 :  Work, Power, and Energy Chapter - 5 :  State of Matter and Pressure Chapter - 6 :  Effect of Heat on Matter Chapter - 7 :  Waves and Sound Chapter - 8 :  Reflection of Light Chapter - 9 :  Refraction of Light Chapter - 10 :  Static Electricity Chapter - 11 :  Current Electricity Chapter - 12 :  Magnetic Effects of Current Chapter - 13 :  Modern Physics and Electronics Chapter - 14 :  Physics to Save Life

### Current Electricity

Physics Chapter - 11: Current Electricity ðŸ‘‰   All Chapter Contents   ðŸ‘ˆ   11.1 Electric Current 11.2 Relationship between Potential Difference and Electricity 11.3 Electric Power 11.4 Electric Supply 11.5 Safe Use of Electricity 11.6 Design of Circuit in Residence Question Bank 11.1  Electric Current 11.2 Relationship between Potential Difference and Electricity 11.3 Electric Power 11.4 Electric Supply 11.5 Safe Use of Electricity 11.6 Design of Circuit in Residence Secondary Physics Chapter - 1 :  Physical Quantities and Their Measurements Chapter - 2 :  Motion Chapter - 3 :  Force Chapter - 4 :  Work, Power, and Energy Chapter - 5 :  State of Matter and Pressure Chapter - 6 :  Effect of Heat on Matter Chapter - 7 :  Waves and Sound Chapter - 8 :  Reflection of Light Chapter - 9 :  Refraction of Light Chapter - 10 :  Static Electricity Chapter - 11 :  Current Electricity Chapter - 12 :  Magnetic Effects of Current Chapter - 13 :  Modern Physics and Electronics Chapter - 14 :  Physics

### Static Electricity

Physics Chapter - 10: Static Electricity ðŸ‘‰   All Chapter Contents   ðŸ‘ˆ   1.1 Physics Question Bank 1.1 Physics What is physics? Secondary Physics Chapter - 1 :  Physical Quantities and Their Measurements Chapter - 2 :  Motion Chapter - 3 :  Force Chapter - 4 :  Work, Power, and Energy Chapter - 5 :  State of Matter and Pressure Chapter - 6 :  Effect of Heat on Matter Chapter - 7 :  Waves and Sound Chapter - 8 :  Reflection of Light Chapter - 9 :  Refraction of Light Chapter - 10 :  Static Electricity Chapter - 11 :  Current Electricity Chapter - 12 :  Magnetic Effects of Current Chapter - 13 :  Modern Physics and Electronics Chapter - 14 :  Physics to Save Life

### Reflection of Light

Physics Chapter - 8: Reflection of Light ðŸ‘‰   All Chapter Contents   ðŸ‘ˆ   1.1 Physics Question Bank 1.1 Physics What is physics? Secondary Physics Chapter - 1 :  Physical Quantities and Their Measurements Chapter - 2 :  Motion Chapter - 3 :  Force Chapter - 4 :  Work, Power, and Energy Chapter - 5 :  State of Matter and Pressure Chapter - 6 :  Effect of Heat on Matter Chapter - 7 :  Waves and Sound Chapter - 8 :  Reflection of Light Chapter - 9 :  Refraction of Light Chapter - 10 :  Static Electricity Chapter - 11 :  Current Electricity Chapter - 12 :  Magnetic Effects of Current Chapter - 13 :  Modern Physics and Electronics Chapter - 14 :  Physics to Save Life

### Waves and Sound

Physics Chapter - 7: Waves and Sound ðŸ‘‰   All Chapter Contents   ðŸ‘ˆ   1.1 Physics Question Bank 1.1 Physics What is physics? Secondary Physics Chapter - 1 :  Physical Quantities and Their Measurements Chapter - 2 :  Motion Chapter - 3 :  Force Chapter - 4 :  Work, Power, and Energy Chapter - 5 :  State of Matter and Pressure Chapter - 6 :  Effect of Heat on Matter Chapter - 7 :  Waves and Sound Chapter - 8 :  Reflection of Light Chapter - 9 :  Refraction of Light Chapter - 10 :  Static Electricity Chapter - 11 :  Current Electricity Chapter - 12 :  Magnetic Effects of Current Chapter - 13 :  Modern Physics and Electronics Chapter - 14 :  Physics to Save Life

### Effect of Heat on Matter

Physics Chapter - 6: Effect of Heat on Matter ðŸ‘‰   All Chapter Contents   ðŸ‘ˆ   6.1  Heat and Temperature 6.2  Thermometric Properties of matter 6.3  Thermal Expansion of Matter 6.4  Effect of Temperature on Change of State 6.5  Specific Heat 6.6  Fundamental Principles of Calorimetry 6.7  Effect of Pressure on Melting Point and Boiling Point Question Bank 6.1 Heat and Temperature What is physics? 6.2 Thermometric Properties of matter 6.3 Thermal Expansion of Matter 6.4 Effect of Temperature on change of State 6.5 Specific Heat 6.6 Fundamental Principles of Calorimetry 6.7 Effect of Pressure on Melting Point and Boiling Point Secondary Physics Chapter - 1 :  Physical Quantities and Their Measurements Chapter - 2 :  Motion Chapter - 3 :  Force Chapter - 4 :  Work, Power, and Energy Chapter - 5 :  State of Matter and Pressure Chapter - 6 :  Effect of Heat on Matter Chapter - 7 :  Waves and Sound Chapter - 8 :  Reflection of Light Chapter - 9 :  Refraction of Light Chapter - 10 :  Static E

### State of Matter and Pressure

Physics Chapter - 5: State of Matter and Pressure ðŸ‘‰   All Chapter Contents   ðŸ‘ˆ   5.1 Pressure 5.2 Density 5.3 Pressure in liquids 5.4 Air Pressure 5.5 Elasticity 5.6 Three States of Matter: Solid, Liquid, and Gas Question Bank 5.1 Pressure What is pressure? What is the unit of pressure? What is the dimension of pressure? What do you understand by 1 pascal? What is area? Mathematical Problems: Will be added... 5.2 Density What is density? What is volume? Uses of density in our daily life. What do you understand by the density of water is 1000 kgm -3 ? What do you understand by the density of gold is 19300 kgm -3 ? How can we determine whether the eggs are good or rotten by submerging in water - explain. Mathematical Problems: Will be added... 5.3 Pressure in liquids 5.4 Air Pressure 5.5 Elasticity 5.6 Three States of Matter: Solid, Liquid, and Gas Secondary Physics Chapter - 1 :  Physical Quantities and Their Measurements Chapter - 2 :  Motion Chapter - 3 :  Force Chapter - 4 :  Work,

### Work, Energy, and Power

Physics Chapter - 4: Work, Energy, and Power ðŸ‘‰   All Chapter Contents   ðŸ‘ˆ   4.1 Work 4.2 Energy 4.3 Different forms of Energy 4.4 Sources of Energy 4.5 Conservation and Transformation of Energy 4.6 Relation between mass and Energy 4.7 Power 4.8 Efficiency 4.9 Role of Energy in Development Activities   Question Bank 4.1 Work What is work? What is the unit of work? What is the dimension of work? What do you understand by 40 J work? What is one Joule? What is positive work? What is negative work? 4.2 Energy What is energy? What is the unit of energy? What is the dimension of energy? 4.3 Different forms of Energy Write the names of the different forms of energy. What is kinetic energy? What is potential energy? What does the potential energy depend on? What do you mean by 300 J of the potential energy of an object? What do you mean by 300 J of the kinetic energy of an object? 4.4 Sources of Energy What do you mean by chemical energy? Describe the different types of chemical energy. D

### Force

Physics Chapter - 3: Force ðŸ‘‰   All Chapter Contents   ðŸ‘ˆ   3.1 Inertia of Concept of Force - Newton's First Law 3.2 Nature of Fundamental Forces 3.3 Balanced and Unbalanced Forces 3.4 Momentum 3.5 Collision 3.6 Effect of Force on Motion: Newton's Second Law 3.7 Gravitational Force 3.8 Newton's Third Law 3.9 Frictional Force Question Bank 3.1  Inertia of Concept of Force - Newton's First Law State Newton's first law. Explain why we never observe that a body in motion keeps its perpetual motion forever? What does inertia mean? What is inertia of rest? What is inertia of motion? Mass is the measurement of inertia? Explain. What is force? What is contact force? What is a non-contact force? Explain that the concept of inertia is found from Newton's first law. Which way does passenger lean when the moving bus suddenly breaks and why? 3.2 Nature of Fundamental Forces What is fundamental force? How many fundamental forces in nature and what are they? What do you me

### Motion

Physics Chapter - 2: Motion ðŸ‘‰   All Chapter Contents   ðŸ‘ˆ   2.1 Rest and Motion 2.2 Different Types of Motion 2.3 Scalar and Vector quantities 2.4 Distance and Displacement 2.5 Speed and Velocity 2.6 Acceleration and Deceleration or Retardation 2.7 Equation of Motion 2.8 Laws of Falling Bodies Question Bank 2.1 Rest and Motion What is rest? What is motion? What is a position? What is a reference point? What do you understand by reference frame? All the rests and motion of the universe are relative, no motion is absolute, no absolute rest - explain. 2.2 Different Types of Motion What is linear motion? What is circular motion? What is translational motion? What is periodic motion? What is oscillatory motion? What is simple harmonic motion? Explain all oscillatory motions are periodic motions but all periodic motions are not oscillatory motions. 2.3 Scalar and Vector Quantities What is quantity? What is the normal body temperature? What is a scalar quantity? What is a vector

### Physical Quantities and Their Measurements

Physics Chapter - 1: Physical Quantities and Their Measurements ðŸ‘‰ All Chapter Contents ðŸ‘ˆ   1.1 Physics 1.2 Scope of physics 1.3 Development of physics 1.4 Objectives of Physics 1.5 Physical Quantities and Their Measurements 1.6 Measuring Instruments 1.7 Error and Accuracy Question Bank 1.1 Physics What is physics? Describe the scope of physics. What is the main goal of physics? What are the branches of physics? Who is famous for solar eclipse predictions? 1.2 Scope of Physics Describe the scope of physics. What is classical physics? What is modern physics? 1.3 Development of Physics Who is famous for solar eclipse predictions? What does the word atom mean? Who says the matter has an inseparable unit? What is the contribution of Archimedes to physics? What did Hygen contribute to physics? Who wrote the encyclopedia about the history of nature? Who is the proponent of the experimental scientific method? Who made the model of the aircraft? Why is Dr. Gilbert so memorable? Who disc

### Refraction of Light

Physics Chapter - 9: Refraction of Light ðŸ‘‰   All Chapter Contents   ðŸ‘ˆ   9.1 Refraction of light 9.2 Total International Reflection 9.3 Uses of Refraction 9.4 Types of Lenses 9.5 Function of the Eye Question Bank 1.1 Physics Secondary Physics Chapter - 1 :  Physical Quantities and Their Measurements Chapter - 2 :  Motion Chapter - 3 :  Force Chapter - 4 :  Work, Power, and Energy Chapter - 5 :  State of Matter and Pressure Chapter - 6 :  Effect of Heat on Matter Chapter - 7 :  Waves and Sound Chapter - 8 :  Reflection of Light Chapter - 9 :  Refraction of Light Chapter - 10 :  Static Electricity Chapter - 11 :  Current Electricity Chapter - 12 :  Magnetic Effects of Current Chapter - 13 :  Modern Physics and Electronics Chapter - 14 :  Physics to Save Life

### How to reduce friction?

How to reduce friction? Friction can be reduced in this way: By smoothing the surface. Using greasy materials. Using ball-bearing. You may like Do I need car insurance? What is car insurance? How could I get cheaper car insurance? What is auto insurance? Why Adulterant food is the barrier to sound health? What are the producers? What are food preservatives? What is food chain? What is tertiary consumer?

### What is fundamental force? Gravitational force, Electromagnetic force, Weak nuclear forces and Strong nuclear force

What is fundamental force? Those forces which are fundamental or independent meaning those forces which do not derive from other forces rather other forces are one type or another expression of them are fundamental forces. The four fundamental forces are: Gravitational force Electromagnetic force Weak nuclear forces and Strong nuclear force. Gravitational force The attraction force working between any two objects of the universe is the gravitational force. This attraction happens because of the mass. Among four fundamental forces, gravitational force is comparatively weaker. Electromagnetic force Two charged particles, because of their charge applies force on another which is called electromagnetic force. Weak nuclear force That short-ranged and weak force that works among the particles inside of a nuclear is weak nuclear force. Because of this force, instability occurs in the nucleus and Beta decay happens. Most  Strong nuclear force The strong force that works between two nucleons is

### What is inertia of motion?

What is inertia of motion? The characteristics that a body in motion wants to keep its motion in uniform velocity, is called inertia of motion . You may like Do I need car insurance? What is car insurance? How could I get cheaper car insurance? What is auto insurance? Why Adulterant food is the barrier to sound health? What are the producers? What are food preservatives? What is food chain? What is tertiary consumer?

### What is inertia of rest?

What is inertia of rest? The characteristics that a stationary body wants to be stationary is called inertia of rest .

### What do you mean by the law of conservation of momentum?

What do you mean by the law of conservation of momentum? If no force other than action and reaction forces act on two or more objects, no change takes place in their sum momentums in the opposite direction. For example, the momentum of two cars are the same before and after a collision. If F 1  and F 2  stand for action and reaction forces, the law of conservation of momentum states that F 1  = F 2 . m 1 u 1 +m 2 u 2 =m 1 v 1 +m 2 v 2 Here, m 1  = mass of the first object m 2  = mass of the second object u 1  = initial velocity of the first object u 2  = initial velocity of the second object v 1  = final velocity of the first object v 2  = final velocity of the second object You may like Do I need car insurance? What is car insurance? How could I get cheaper car insurance? What is auto insurance? Why Adulterant food is the barrier to sound health? What are the producers? What are food preservatives? What is food chain? What is tertiary consumer?

### You are standing on a weight measuring machine in a lift. If the cable of the lift tears, what is the weight that shows up on the machine?

My weight will be zero. If the cable of lift tears, I, lift, and weight meter will fall down in the same acceleration. In this case, the applied force by me at the weight meter will be zero. That's why if the cable of lift tears, then my weight will be zero, i.e the weight meter will show zero reading. You may like Do I need car insurance? What is car insurance? How could I get cheaper car insurance? What is auto insurance? Why Adulterant food is the barrier to sound health? What are the producers? What are food preservatives? What is food chain? What is tertiary consumer?

### When you try to get down from a moving train why do you fall in the forward direction?

When you try to get down from a moving train why do you fall in the forward direction? Why need to try to get down from a moving train we get the phone in the forward direction because of the inertia of motion. The full body of us remains in dynamic condition inside the moving train. But when we try to get down from the moving train, below the parts of our body become static. Fore inertia of moving parts of the upper body is dynamic. That's why when we try to get down from a moving train, we fall in the forward direction. You may like Do I need car insurance? What is car insurance? How could I get cheaper car insurance? What is auto insurance? Why Adulterant food is the barrier to sound health? What are the producers? What are food preservatives? What is food chain? What is tertiary consumer?