Which Type of Image is Formed by a Plane Mirror?When you look into a plane mirror, you will see an image of yourself which has the following characteristics: Your image is upright.Your image is the same size as you are.Your image is at the same distance …

What is Heat Capacity?Heat Capacity On a sunny morning, a worker at a swimming pool uses his hand to feel the water in the swimming pool and in a pail. The water in the pail is warm but the water in the swimming pool is still cold. (a) Both the water in…

What is the Relationship Between Temperature and Volume of a Gas A woman left an empty water bottle in the car on a hot day. When she opened the door of her car at night, she felt the air in the car was cold and found the bottle compressed, as shown in …

What is the formula for work?Definition: In our daily life “work” implies an activity resulting in muscular or mental exertion. However, in physics the term ‘work’ is used in a specific sense involves the displacement of a particle or body under the acti…

Understanding Buoyancy Using Archimedes’s PrincipleArchimedes’ principle states that for a body wholly or partially immersed in a fluid, the upward buoyant force acting on the body is equal to the weight of the fluid it displaces. Figure shows an object …

What is Elastic Potential Energy? Work is done when a force is used to extend or compress an elastic material. The work done is stored in the material as elastic potential energy.The extended or compressed material can do work on an object attached to i…

Understanding Pressure in LiquidsFigure shows an old container being hoisted from the sea. The water in the container flows out in all directions. This is because pressure in a liquid acts in all directions. The man in Figure is not going to the outer s…

Understanding ElasticityFigure shows some objects around us that are elastic. Elasticity is a property of matter that enables an object to return to its original size and shape when the forces that are acting on it are removed. Figure shows the elastic…

Difference Between Speed And VelocityThe ‘distance’ travelled by a body in unit time interval is called its speed. When the position of a body changes in particular direction, then speed is denoted by ‘velocity’. i.e. the rate of change of displacement …

What is PowerFigure shows two electric motors, A and B respectively. Each motor lifts an identical load from the floor. Motor A can lift the load more quickly than motor B. Hence, motor A can do the same amount of work in a shorter time. Motor A is said…