physics projects class ix

Horizontal range is give by This shows that there are two angles of projection for the same horizontal range i.e., J and (90 o - J ) with the horizontal. The projectile will cover the same horizontal range whether it is thrown at an angle (90 0 ..

We know that whenever an object is dropped from a height, it falls towards the Earth. Similarly, when an object is projected vertically upwards, it goes up but after attaining a certain height, it starts falling down. It is the force of gravitation which pulls the object towards the..

Maximum height is denoted by the letter h m a x or H. It is also known as the vertical range. It is the maximum height to which a projectile rises above the horizontal plane of projection..

An electron is projected with a speed of 10 5 ms - 1 at right angles to a magnetic field of 0.019 G. Calculate the radius of the circle described by the electro..

Photocopier moves a document from the handler to the glass plate, where the pattern of the image is projected by lamps, mirrors and lenses onto a photoreceptor belt (or drum). The electrostatic charge on the belt fades in areas receiving light from the projected image. Magnetic..

Falling Objects and Acceleration due to Gravity - We know that whenever an object is dropped from a height, it falls towards the Earth. Similarly, when an object is projected vertically upwards, it goes up but after attaining a certain height, it starts falling down. It is the force of gr..

Escape Velocity - All bodies when projected vertically upwards fall back to earth due to the earth's gravitational pull. The maximum height attained by a body depends upon the initial velocity of the body. This does not mean that no object can escape earth's gravitational pull. We know th..

It contains a set of blades made of wood or metal. The blades are attached to a horizontal shaft to which a toothed wheel (like a gear) is fixed. The toothed wheel is in contact with a gear wheel mounted on a vertical shaft. The other end of the shaft is connected to a heavy, disc-shaped stone call..

Principle of Fax Machine - The essential parts of a fax system are the transmitting devices that translate the graphic material into electrical impulses according to a set pattern, and a synchronized receiving device that retranslates these impulses and prints that. In a typical system, the fax sca..

To launch an artificial satellite in space, multi-stage rockets are used. It raises the satellite to a predetermined height, projects it in the right direction with a velocity which enables it to revolve around the Earth. This velocity is called the escape velocity. Escape velocity is th..