Science Facts Set-6

• A Positron is a positively charged particle whose mass is nearly equal to the mass of an electron.
• Dolphins are marine mammals. There are about forty species of Dolphins.
• Alexander Fleming was the first to extract the antibiotic substance Penicillin from a fungus called Penicillium notatum.
• A Solar Cell is a device that converts light energy from the Sun into electrical energy.
• Cheetah is the fastest animal on land which can run with a maximum speed of 112 kph.

• The three types of equilibrium are stable equilibrium, unstable equilibrium and neutral equilibrium.
• Potential energy is the energy stored in a system (or object) at rest.
• A primary cell is a cell from which electrical energy is derived from irreversible chemical actions.
• A conductor is a material that allows electric charges to pass through it.
• Chlorophyll is a green pigment in the leaves of a plant that is responsible for photosynthesis.