PART - 2 CH - 12 Kinetic Theory — Physics STD 11 Science — Question

A charged particle is projected at a very high speed perpendicular to a uniform magnetic field. The particle will:

In which situation will the value of displacement of the body equal to the distance covered?

The sign of work done by a force on a body is important to understand. State carefully if the following quantities are positive or negative: Work done by friction on a body sliding down an inclined plane.

A particle executes simple harmonic motion. Let P be a point near the mean position and Q be a point near an extreme. The speed of the particle at P is larger than the speed at Q. Still the particle crosses P and Q equal number of times in a given time interval. Does it make you unhappy?

Does the nature of forces differ in solids and liquids? If yes, what is the difference there?

Springs of steel and copper of equal size are stretched till equal increases in length. On which more work would have to be done?

Is energy produced when a transformer steps up the voltage?

Why do fire fighters have a jet attached to the head of their water pipes?

Name two physical quantities whose dimensions are same.

Energy possessed by a body by virtue of its position or configuration is known as ­________.