Physics D

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Deceleration
Change of velocity per second when an object slows down.
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Diffraction
The spreading of waves when they pass through a gap or around the edges of an obstacle that has a similar size as the wavelength of the waves.
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Diode
Electrical device that allows current to flow in one direction only.
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Dioptre
The unit of lens power, D.
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Direct current
Electric current in a circuit that is in one direction only.
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Directly proportional
A graph will show this if the line of best fit is a straight line through the origin.
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Diverging lens
A lens that makes light rays parallel to the axis diverge (i.e. spread out)as if from a single point; also referred to as a concave lens.
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Doppler effect
The change of wavelength (and frequency) of the waves from a moving source due to the motion of the source towards or away from the observer.
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Drag force
A force opposing the motion of an object due to fluid (e.g. air) flowing past the object as it moves.
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Other cards in this set

Card 2

Front

Diffraction

Back

The spreading of waves when they pass through a gap or around the edges of an obstacle that has a similar size as the wavelength of the waves.

Card 3

Front

Diode

Back

Preview of the front of card 3

Card 4

Front

Dioptre

Back

Preview of the front of card 4

Card 5

Front

Direct current

Back

Preview of the front of card 5
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