Science Flashcards
any form of disturbance that carries energy from one place to another.
Wave
Waves that require a medium for transmission
Mechanical waves
Waves that do not require any medium for transmission
Electromagnetic waves
The direction of the particles is perpendicular to the direction of the motion of the wave’s propagation
Transverse
The direction of the particles is parallel to the direction of the motion of the wave’s propagation
Longitudinal
The particles travel in circular motion.
Surface
the part of the wave where molecules are compressed or where there are shorter wavelengths.
Compression
the part of the wave where molecules are spread out or stretched.
rarefaction
Where does sound travel faster
Warmer air
Increase of temperature=__________
increase the speed of sound
The longer the wavelength the ____________ the energy
lesser/lower
the shorter the wavelength the __________ the energy.
Higher/greater
As you move from red to violet in the visible spectrum the __________ _________
Energy increases
an electromagnetic wave that can travel even without a medium.
light
This is the property of a wave that refers to the bouncing back of waves.
Reflection
This is the bending of light when it passes through different media.
Refraction
This is the bending of a wave - when it passes through a gap or around edges.
Diffraction
This is the property of a light wave that allows an unpolarized light to vibrate or to focus in one direction or on a single plane
Polarization
measures both kinetic and potential energy contained by molecules in an object.
Heat
measures average kinetic energy of molecules in substance.
Temperature
Relationship between molecular movement and temperature
molecular motion
the difference in charge between two points.
Voltage
the rate at which charge is flowing
Current
a material’s tendency to resist the flow of charge (current).
Resistance
The fundamental relationship between voltage, current and resistance in an electrical or electronic circuit
Ohm’s law
defined as the capacity to do electric work
electrical energy
defined as the ‘rate of work done per unit charge’ or ‘rate of energy transfer per unit time’.
Electrical Power
refers to the rate at which electrical energy is used or produced in a circuit
Electrical Power
the total amount of energy consumed or produced over a period of time.
Electrical energy
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