Potential Energy

CBSE IX Physics Work and Energy

An object is raised to a height of 5 m at sea level and then the same object is raised to the same height on a mountain peak, 1000m above sea level.Will there be a difference in potential energy in the above two cases?

Is there achange in potential energy with respect to one level and with respect to another level?

CBSE IX Physics Work and Energy

An object of mass 50kg is raised to a hight of 10m above the ground. Find the potential

energy of the object at the higest point. If the object is allowed to fall freely, what is its kinetic energy when it is half way down? give reason to justify your answer.(g=10m/s)

CBSE XII Science Physics Electrostatic Potential and Capacitance

Two point charges A and B of values 5*10C and 3*10C are kept 6cm apart in air .calculate the work done when charge B is moved by 1cm towards charge A .  [ with simple explanation and diagram ] 

CBSE IX Physics Work and Energy

where will the skier has a maximum potential energy

ans. on top of the hill but why?

JEE Plances JEE (Main) Physics Work, Energy and Power

. A light spring of force constant 'K' is held

between two blocks of masses 'm' and '2m'

The two blocks and the spring system rests

on a smooth horizontal floor. Now the blocks

are moved towards each other compressing

the spring by 'x' and suddenly released. The

relative velocity between the blocks when the

spring attains its natural length will be

NEET1 ALL Class Physics Gravitation

An electron moves in a circular orbit at a distance, from a proton with kinetic energy E. To escape to infinity, the energy which must be supplied to the electron  will be ?

CBSE XI Science Physics Work, Energy and Power

It is confusing me a bit... My answer is coming really veery different.. help..

Asked by nitishkrnehu09 23rd November 2017 10:16 AM

Answered by Expert

Find the ratio of potential energy if an object is raised to thrice of its height and its tripled.

CBSE X Science

Find energyfind energy.

JEE Plances JEE (Main) Physics

Q) the potential energy of partical varies with x according to relation U(x)=x square- 4x. the point x=2 is point of: explain with examples A) stable equillibrium B) unstable equillibrium C) neutral equillibrium D) nome of these

CBSE IX Physics

What happens to the potential energy of a slinky when it is stretched and compressed?  

ICSE VIII Physics Energy

explain how the law of conservation of energy holds true for three different position of the bob.

ICSE VIII Physics Energy

define  1) gravitatioal potential energy 2) law of conservation of energy

ICSE VIII Physics

differentitate  1)kinetic energy and potential energy  2)energy and power  

CBSE XII Science Physics

Calculate  the  electrostatic  potential  energy for  a  system  of  three  point  charges placed  at  corners of  an  equilateral  triangle  of  side 'a'

NEET1 NEET1 Physics

Figure shows the variation of energy E with the orbital radius r of a satellite in a circular motion. Mark the correct statement: (a) 'A' shows the kinetic energy, 'B' shows the total energy and 'C' the potential energy of the satellite. (b) 'A' and 'B' are the kinetic energy and potential energy respectively and 'C' the total energy of the satellite. (c) 'A' and 'B' are the potential energy and the kinetic energy respectively and 'C' the total energy of the satellite. (d) 'C' and 'A' are the kinetic and potential energies respectively and 'B' the total energy of the satellite.  

NEET1 NEET1 Physics

Find potential energy

CBSE XII Science Physics

A electric dipole placed at an angle 60 with an uniform electric field of magnitude 3N/C . It experience torque of 8 Nm and the length of the dipole is 3 cm , calculate the magnitude of the either charge of thr dipole and potential energy of the dipole.

ICSE X Physics

 A ball is dropped from rest from a height of 12 height loses its 25% of its kinetic energy on striking the ground what is the height to which it bounces

ICSE X Physics

A motor car weighing 2000 kg is moving with a velocity of 20 m per second if the car engine is switched off and the car Rolls up a slope what is the Vertical height to which it can climb

ICSE X Physics

Calculate the time for which a motor pump of 10 hp and efficiency 80%is switched on so as to pump 20 cm^3 of water through a vertical height of 20 m

ICSE X Physics

A stone of 1 kg Falls freely from a height of 5m calculate its potential energy final velocity max kinetic energy and Total energy at any instant

CBSE XI Science Physics

8th?

CBSE XI Science Physics

5th?

ICSE X Physics

A 4 Pulley system is used to lift a mass of 10 kg If a 40 Newton force is applied by the man to lift this Mass through 1 M a.calculate the velocity ratio of system b. the  energy transferred by the man to the pulley system in raising the load through 1 m c. The potential energy transferred to the load d.efficiency of pulley system

ICSE X Physics

A catapult throws a stone of mass 100 gram with a velocity of 30 m per second find the potential energy of its elastic band if 25% of energy is wasted

ICSE VIII Physics Energy

A stone of mass 500g is raised from a height of 2 to 4 m .find the change in its potential energy ?

CBSE XII Science Physics

A short bar magnet of magnetic moment 0.32 JT-1 is placed in a uniform external magnetic field of 0.15 T. Id the bar is free to rotate in the plane of the field, which orientation would correspond to stable and unstable equilibrium. Find potential energy in each case.

CBSE XII Science Physics

Derive an expression for the potential energy of a dipole of dipole moment p placed in an electric field E. Find the orientation of the dipole when it is in (1) stable equilibrium (2) unstable equilibrium.

CBSE XI Science Physics

the gravitational field due to a mass distribution is E = K/ x cube in the x- direction [ k is costant ] . taking the gravitional potential to be zero at infinity , ts value at a distance x is   

Maharashtra IX Physics

An electric pump has 2kW power. How much water it can lift every minute to height of 10m?

NEET1 NEET1 Physics

A particle executes SHM with an amplitude 4 cm. At what displacement from the mean position its energy is half kinetic and half potential

CBSE XI Science Physics

Find the potential energy of a system of four particles placed at the vertices of a square of side l. Also obtain the potential at the centre of the square.

CBSE X Physics

What is the difference between electric potential and potential difference?

CBSE IX Physics

An object is falling freely from a height x. After it has fallen a height x/2,it will possess

CBSE IX Physics Work and Energy

what is potential energy  

JEE Main Physics Electrostatics

Sir pls solve the following.

CBSE IX Physics Energy : The Driving Force

 State what energy do the following objects possess: (i) A man climbing Mount Everest  ii) A stretched spring on the ground (iii) A man standing on the top of a building (iv) A formula one race car on a track  

CBSE XII Science Physics

Two equal point charges A and N each of +1000esu are placed 200cm apart in air. A particle carrying a charge of -1000esu is projected along perpendicular bisector of AB from the point C midway between A &B , with a kinetic energy of 10^4erg. How far will the particle move before it turns back? 

ICSE X Physics

A ball of mass 10g falls from a height of 5 m. It rebounds from the ground to a height of 4 m.Find: initial P.E. of the ball K.E. of ball just before it strikes the ground K.E. of the ball after striking the ground LOSS  IN K.E. ON STRINKING THE GROUND.

CBSE XII Science Physics

kindly answer thanks

CBSE IX Physics Work and Energy

How is potential energy affected when work done by a body and when work done on a body

CBSE XII Science Physics Electrostatic Potential and Capacitance

Two metal spheres each of mass 1 gmail and radius 0.5 cm are placed on a smooth horizontal insulated plate such that their centres are 15 cm apart. One is charged to a potential of 500 volt and the other to 100 volt. What is the velocity of each sphere when they drift away to a distance of 30 cm between their centres?

CBSE XII Science Physics Electrostatic Potential and Capacitance

a charge of 30nc produces electric field at point 0.8m and 1.2m away from the charge along a straight line in the same side find the potential at these  points and also find the work do e to move a charge of 2nc between these points

CBSE XII Science Physics

Pls answer 

ICSE X Physics Work, Energy and Power

What is meant by conservation of mechanical energy 

CBSE VI Science Fun with Magnets

How can we prove Magnetism is a form of energy 

NEET NEET Physics Work, Energy and Power

Morning breakfast gives 5000 cal to a 60 kg person. The efficiency of person is 30%. The height upto which the person can climb up by using energy obtained from breakfast is-(1) 5m, (2) 10.5m, (3) 15m, (4) 16.5m

NEET NEET Physics Electrostatics

Q 5 Option 1 ans

NEET NEET Physics Work, Energy and Power

How to solve this question?

CBSE XII Science Physics Electrostatic Potential and Capacitance

Question:A test charge is moved from lower potential point to higher potential point. The potential energy of point charge will....remain same/increase/decrease/zero?

ICSE X Physics

Write an expression for the potential energy of a body of mass m  placed at a height h above the earth surface . State the assumptions  made, if any?

CBSE XII Science Physics

PL give answer 

CBSE XII Science Physics

Hi tick the answer

ICSE X Physics Work, Energy and Power

A hydroelectric power station takes its water from a lake whose water level is at a hight of 50m above the turbine, Assuming an overall efficiency of 40 %, calculate the mass of water which must follow through the turbine each second to produce power output of 1MW.   Pls solve this question clearly step by step so that i can understand  

ICSE X Physics Work, Energy and Power

What is kinetic and potential energy?  

ICSE XII Science Physics

??

ICSE X Physics

At maximum  height which energy becomes zero?

JEE Main Physics

a solid sphere of uniform density and radius of 4m is located having centre at origin of co ordinate system. two small spheres, each of radius 1m and centres at A(2m,0,0) and B(-2m,0,0) are taken out from solid sphere. mass of remaining body is (186/23) kg. find potential at centre of sphere.?

CBSE XII Science Physics Electrostatic Potential and Capacitance

What is the difference between potential energy,  potential  difference and voltage?  

NEET NEET Physics

Find relation between potential energy and kinetic energy at height x.【graph}】 ☑️Refer to attachment ⭕️ Help me in this.....Thanks☺️

CBSE XI Science Physics

Two cylinders of equal cross sectional area A contain water up to heights h1 and h2. The vessels in them are interconnected so that levels in them are equal. Calculate the work done by the gravity during the process. The density of water is p

ICSE VII Physics Energy

Give an example in which a body possesses both kinetic energy and potential energy.

ICSE VIII Physics Energy

The sequence of energy changes in hydroelectric power station is

ICSE X Physics

SKETCH A PAIR OF GRAPHS TO SHOW THE VARIATION OF KINETIC AND POTENTIAL ENERGIES RELATIVE TO HEIGHT X ABOVE THE GROUND FOR AN OBJECT DROPPEDFROM REST FROM A HEIGHT h ABOVE THE GROUND. AT WHAT HEIGHT ABOVE THE GROUND WOULD THE TWO ENERGIES BE EQUAL TO EACH OTHER?

CBSE IX Physics Work and Energy

Give one example of a body that has potential energy, in each of the following :-                                          i) due to its position                                                                                                                                     ii) due to its state                                         

ICSE VIII Physics Energy

A child lifts a book of mass 1kg from the table to a cupboard at a height 2m from the floor .find the potential energy with respect to floor

ICSE X Physics

Sketch a pair of graphs to show the variation in kinetic and potential energies relative to height above x above the ground for an object dropped from rest from a height h above the ground.At what height above the ground would the two energies be equal to each other?

NEET NEET Physics

Please answer this

CBSE IX Physics Work and Energy

ANOBJECT OF MASS 40KG IS RAISED AT A HEIGHT OF 5M ABOVE THE GROUND . WHATIS ITS POTENTIAL ENERGY ? IF THE OBJECT IS ALLOWED TO FALL FIND ITS KINETIC ENERGY WHEN IT IS HALF WAY DOWN?

CBSE IX Physics Work and Energy

a body of mass 5 kg is thrown vertically upward with a velocity of 20 metre per second find 1- initial kinetic energy 2-kinetic energy and potential energy after 1 second( given g  =10 /s^2)

JEE Main Physics

The potential energy if system is increase if work is done

ICSE VIII Physics Energy

A boy of mass 50 kg climbs stairs by spending 1200 joule of energy .how high does boy climb

JEE Main Physics

Internal force can change potential energy of system .if yes then pls explain 

JEE Main Physics

Why not option four is correct?pls explain in details

ICSE X Physics Work, Energy and Power

A hudroelectric power station takes its water from a lake whose water level is at height of 50m above the turbine. Assuming an overall eficiency of 40% calculate mass of water which must flow through turbine each second to produce power output of 1 MW. (take g=10m/s). 

CBSE IX Physics Work and Energy

What is potential energy,kinetical energy,power?

CBSE XII Science Physics

please answer with explaination

ICSE X Physics

What is difference between potential and potential difference?

JEE Main Physics

which of following is true?

CBSE IX Physics Work and Energy

Please solve. 

ICSE X Physics Work, Energy and Power

A metal sphere of mass 200g falls from a height of 5 m. Calculate velocity with which it will strike the ground.g=10m/s-2

ICSE X Physics Work, Energy and Power

A compressed spring has a tennis ball of mass 0.5 kg attached to it. The spring is then released which sends the ball moving on a horizontal surface, with a sped of 2m/s-1. What is the elastic energy of the compressed spring?

ICSE X Physics Work, Energy and Power

q 4 sdecond part

ICSE X Physics Work, Energy and Power

exercise 2 q. 4

ICSE X Physics Work, Energy and Power

exercise 2b q 24

ICSE X Physics Work, Energy and Power

ex. 2c q 5

CBSE XI Science Physics Work, Energy and Power

plz elaborate by figure and step by step question no 4

ICSE VII Physics Energy

What is gravitational energy

ICSE VII Physics Energy

What is kinetic and potential energy 

CBSE XII Science Physics Electrostatic Potential and Capacitance

An alpha particle is accelerated through a potential difference of 2000v what will be the increase in energy in electron volt 

ICSE VII Physics Energy

What are kinetic and potential energy

ICSE X Physics Work, Energy and Power

kinetic energy and potential energy in vertical motion

ICSE VII Physics Energy

What is potential energy?     

NEET NEET Physics

Four charges q each are placed at the four corners of a sqasqu of side 'a'. Find the potential energy of one of the charges.

ICSE X Physics

THE ENERGY CARRIED BY TWO ELECTRONS WHEN PASSING UNDER A POTENTIAL DIFFERENCE OF 0.5V IS... 

CBSE XI Science Physics

any genius person...????

ICSE VI Physics Work and Energy

I not understand pontial energy

CBSE XI Science Physics Work, Energy and Power

why is force attractive when the separation between body and force increases and potential increases and vice versa? why is force repulsive when separation between body and force increases and potential decreases? if PE/force is negative why attraction and if PE/force is positive why there is repulsion? pls explain and prove the above points with suitable examples.

NEET NEET Chemistry Chemical Kinetics

⭕ Explain in detail, Thanks!

CBSE IX Physics Work and Energy

 A toy cart of mass 2kg is pressed against a spring. On being released the cart translates with a velocity of 4 m/s.Find the elastic P.E stored in the compressed spring.(step by step answer)

ICSE VII Physics Energy

calculate the gravitationlal potential energy of a body of mass 400g when it is lifted to a height of 4m above the ground 

JEE Main Physics Work, Energy and Power

Two block A and B each of mass m are connected by a massless spring of natural length L and spring constant k. The blocks are initially resting on a smooth horizontal floor with the spring at its natural length as shown in fig. A third identical block C, also of mass m, moving on the floor with a speed v along the line joining A and B, and collides elastically with A. Then

CBSE XII Science Physics Electrostatic Potential and Capacitance

  A particle with charge q and mass m is released just outside the centre of a uniformly charged square plate of side a and potential V.find the speed in which the particle files off away from the plate

CBSE IX Science Gravitation

the satellite of mass 1000 kg is supposed to orbit the earth at height of 2000 km about the Earth surface. the kinetic energy and potential energy respectively are

CBSE IX Physics Work and Energy

difference between kinetic energy and potential energy

CBSE IX Physics Work and Energy

An object of mass 1kg is falling from the height h=10m.calculate a) the total energy of an object at h=10m b) potential energy of the object when it is at h=4m c) kinetic energy of the object when it is at h=4m d) what will be the speed of the object when it hits the ground