Sunday, 8 December 2013

Glossary of Physics (V)

Van der Wall's force: General term for weak attractive intermolecular forces
Vector Quantity: A quantity, which needs both magnitude and direction to describe it.
Velocity: Distance traveled by a body in a particular direction per unit time or the displacement of the body per unit time. It is a vector quantity.
Vibration: A back and forth motion that repeats itself.
Virtual image: An image formed when the reflected or refracted light rays appear to meet; this image cannot be projected on a screen.
Volt: Unit of potential difference, equivalent to joule/coulomb.
Voltage drop: The electric potential difference across a resistor or other part of a circuit that consumes power.

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