They are majorly present in the asteroid belt between Mars and Jupiter.Asteroids are thought to be l...

As a comet approaches the Sun, it starts to heat up. The ice transforms directly from a solid to a v...

The human ear can respond to minute pressure variations in the air if they are in the audible frequ...

Period, frequency and amplitude are all quantities constitute to sound. The inverse of period is cal...

The vibrations produced by earthquakes are detected, recorded and measured by instruments call seis...

Lightning strikes -When Trees protrude from the earth's surface, making them frequent victims of di...

Kinetic friction is experienced when a furniture is moved, sliding across the floor. Kinetic frictio...

In the process of electroplating, the object to be plated is connected to the negative terminal of t...

Cations are positive ions. Cations (positively-charged ions) and anions (negatively-charged ions) a...

We live on earth due to gravity though earth is round shaped and it is possible for all of us to bal...

Hydrostatic pressre is the pressure exerted by a fluid at equilibrium, due to gravity. The pressure ...

All elastic, spring and friction are types of forces. Elasticity is the ability of a body to resist...

Rods is the nerve cell that is more sensitive to dim light. The retina is composed of ten layers of...

When the surface is rough, the rays incident at slightly different points on the surface are reflect...

Aryabhata was India's first satellite, named after an Indian astronomer of the same name. It was lu...

Moon revolves around the earth because uniform gravitational field exists between earth and moon, gr...

Nuclear fusion at the core of the sun turns hydrogen into helium and provides enough power to keep o...

Human ear cannot detect sound frequencies less than 20 vibrations per second i.e 20 Hz. So any sound...

The speed of sound depends on the medium in which it is transported. Sound travels fastest through s...

Lightning arresters placed at the apex of the structures because lightning tends to strike the highe...

Static electricity is created when electrons are exchanged through a contact like rubbing. The proce...

Fluid friction occurs in liquids and gases. Friction is the force exerted by the surface of an objec...

Limiting is the friction on a body just before it starts moving because that is the amount of force ...

The nature of chemical bonding between the atom of a compound decides the creation of ionic bonds i...

4 will exert the water with high pressure at any position depends on the height of water column abov...

Acceleration,gravity and deceleration are all due to force. The relationship between force and accel...

The number of images depends on the angle between the two mirrors. The number of images formed in tw...

The optic nerve is mainly composed of retinal ganglion cell (RGC) axons. In the human eye, the optic...

Jupiter is not a terrestrial planet. Jupiter, Saturn, Uranus and Neptune are gas giants, also known ...

There are eight planets in the solar system : Mercury, Venus, Earth, Mars, Jupiter Saturn, Uranus an...

During the process some of the mass is converted into energy. Mass of 4 H atoms: 4.03130 AMU Mass of...

Pitch is a preceptual property of sounds that allows their ordering on a frequency - related scale. ...

Sound waves are travelling vibrations of particles in media such as air, water or metal. So it stand...

An earthquake is a sudden tremor or movement of the earth's crust, which originates naturally at or ...

Spring balance is the device that is used to measure the magnitude of the force acting on an object....

Dry friction is the force that opposes one solid surface sliding across another solid surface. Dry f...

Electrolysis is a process by which electrons are forced through a chemical cell, thus causing a chem...

Positively charged ions migrate to the negative electrode (cathode) during electrolysis. They gain e...

Materials that do not allow electricity to pass easily through them are called insulators. Rubber, g...

Fluid pressure is a measurement of the force per unit area on a object in the fluid or on the surfa...

The air pressure is at its highest at surface of earth. The standard, or near-average, atmospheric p...

According to the laws of reflection, the incident ray, the reflected ray and the point of reflection...

Cone cells, or cones are one of three types of photoreceptor cells in the retina of mammalian eyes (...

If two plane mirrors are placed together on one of their edges so as to form a right angle mirror sy...

Stars generate their own light. A star is a ball of burning gases, mostly hydrogen and helium. A sta...

A celestial body is any natural body outside of the Earth's atmosphere. Easy examples are the Moon,...

The range of human hearing is generally considered to be 20 Hz to 20 kHz, but it is far more sensiti...

Electrons are made up of negatively charged particles.Electrons belong to the first generation of th...

The voices of men, women and children differ from each other due to the following factors:1) The pit...

When an atom has an equal number of electrons and protons, it has an equal number of negative elect...