High School Physics


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Program Design | Design Phase of SDLC & its activities

Program design consists of the steps a programmer should do before they start coding the program in a specific language. These steps when properly documented will make the completed program easier for other programmers to maintain in the future.
There are three broad areas of activity undertaken in the Program Design phase:
•Understanding the Program
•Using Design Tools to Create a Model
•Develop Test Data

Relation between kinetic energy and momentum | Derivation of p=√(2mk) or momentum-KE equation

In this post, we will find the relation between kinetic energy and momentum. We will also derive the momentum-kinetic energy equation or p=√(2mk) equation. This momentum-KE equation presents the relation between momentum(p) and kinetic energy(K). momentum-kinetic energy equation | p=√(2mk) The relation between momentum(p) and kinetic energy(K) of an object of mass m can be […]

Potential Energy

What Is Potential Energy?Potential energy is a form of stored energy – it is the energy possessed by a body at rest due to its position or size or shape. By doing work, forces act to increase and decrease the kinetic energy of objects within a system. If the kinetic energy that’s removed can be […]

Work Energy Power – Worksheet problem solution (Q5)

A 10 kg ball is thrown upwards with a speed of 5 m/s. (a) Find its potential energy when it reaches the highest point. (b) Calculate the maximum height it reaches. Solution:Initial KE = (1/2) (10) (5)2 = 125 Joule(a) PE at the highest point = KE at the lowest point at initial moment = […]

Work Energy Power – Worksheet problem solution (Q1)

A block of mass 1 kg slides down on an inclined plane of inclination 60 degrees. Find the work done by the block’s weight as it slides through 100 cm. Solution:mass = 1kg. Weight = 1x 9.8 N = 9.8 N So the force to be considered is the weight = F=9.8 N in the downward direction. […]

Solution of Physics Numericals for class 9 (set 1 Q16)

Problem Statement A bullet of mass 50 g moving with an initial velocity of 100 m/s, strikes a wooden block and comes to rest after penetrating a distance 2 cm in it. Calculate: (i) Initial momentum of the bullet (ii)final momentum of the bullet (iii) retardation caused by the wooden block, and (iv) resistive force […]

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