Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
28 Cards in this Set
- Front
- Back
|
Acceleration due to gravity
|
The acceleration produced in a body due to the earth's attraction is called acceleration due to gravity. It is denoted by the letter g. Its SI unit is m/s². On the surface of the earth, its average value is 9.8m/s².
|
|
|
Acceleration
|
The rate of change of velocity of a moving object
|
|
|
Amp[Ampere]
|
Unit of electric current. It is equivalent to coulomb/sec.
|
|
|
Amplitude [of waves]
|
The maximum displacement of particles of the medium from their mean positions during the propagation of a wave
|
|
|
Angle of incidence
|
Angle of an incident (arriving) ray or particle to a surface; measured from a line perpendicular to the surface (the normal)
|
|
|
Angle of reflection
|
Angle of a reflected ray or particle from a surface; measured from a line perpendicular to the surface (the normal)
|
|
|
Avogadro's Number
|
6.02 x 10^23
|
|
|
Centripetal force
|
The force required to pull an object out of its natural straight-line path and into a circular path
|
|
|
Coulomb
|
Unit used to measure quantity of electric charge
|
|
|
Diffraction
|
The bending of light around the edge of an opaque object
|
|
|
Doppler effect
|
An apparent shift in the frequency of sound or light due to relative motion between the source of the sound or light and the observer
|
|
|
First law of motion
|
Every object remains at rest or in a state of uniform straight-line motion unless acted on by an unbalanced force
|
|
|
Frequency (of waves)
|
The number of waves produced per second is called its frequency.[Hz]
|
|
|
Index of refraction
|
The ratio of the speed of light in a vacuum to the speed of light in a material
|
|
|
Inertia
|
The property of matter that causes it to resist any change in its state of rest or of uniform motion.
|
|
|
Joule
|
Metric unit used to measure work and energy; can also be used to measure heat; equivalent to newton-meter
|
|
|
Net force
|
The resulting force after all vector forces have been added; if a net force is zero, all the forces have canceled each other and there is not an unbalanced force
|
|
|
Newton
|
A unit of force defined as kg.m/sec^2
|
|
|
Newton's second law of motion
|
The rate of change of momentum is equal to the force applied OR the force acting on a body is directly proportional to the product of its mass and acceleration produced by the force in the body.
|
|
|
Newton's third law of motion
|
To every action there is an equal and opposite reaction
|
|
|
Ohm
|
Unit of resistance; equivalent to volts/amps
|
|
|
Power
|
The rate of doing work is called power. Power is a scalar quantity. The SI unit of power is Watt ( 1 W = 1 J/sec)
|
|
|
Refraction
|
A change in the direction of travel of light, sound, or other waves crossing a boundary
|
|
|
Scalar Quantity
|
is described completely by its magnitude
|
|
|
Volt
|
Unit of potential difference equivalent to joules/coulomb
|
|
|
Watt
|
Metric unit for power; equivalent to joule/sec
|
|
|
Work
|
Force x Displacement in the direction of the force
|
|
|
Work
|
Work is done when a force acting on a body displaces it. Work is a scalar quantity. The SI unit for work is Joule
|
