Physics

The melting point of ice decreases when pressure increases because when pressure is increased volume is decreased and volume of water is less than ice.

Earth’s gravity is 6 times moon’s gravity. That means moon attracts an object with less force than earth. Hence a person can jump higher on moon than on earth.

Electrons are tiny compared to protons and neutrons, over 1,800 times smaller than either a proton or a neutron. 1836 times smaller to be exact.

In a Laser all the atoms emit the light waves of same frequency, amplitude and phase. A laser is a device that emits light (electromagnetic radiation) through a process of optical amplification based on the stimulated emission of photons. The term “laser” originated as an acronym for Light Amplification by Stimulated Emission of Radiation.

A brake is a mechanical device that inhibits motion by absorbing energy from a moving system. It is used for slowing or stopping a moving vehicle, wheel, axle, or to prevent its motion, most often accomplished by means of friction.

An alpha particle is identical to a helium atom that has been stripped of its two electrons; thus, an alpha particle contains two protons and two neutrons.