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29 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Ohms Law |
Ohm's law states that the current through a conductor between two points is directly proportional to the voltage across the two points. |
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Doppler Effect |
The Doppler effect (or the Doppler shift) is the change in frequency or wavelength of a wave for an observer who is moving relative to the wave source. |
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Law of reflection of light |
The law of reflection states that the incident ray, the reflected ray, and the normal to the surface of the mirror all lie in the same plane. Furthermore, the angle of reflection is equal to the angle of incidence. Both angles are measured with respect to the normal to the mirror. |
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Momentum |
Momentum is the product of an objects mass and velocity |
P=mv |
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Conservation of momentum |
The net momentum of an isolated system remains constant. An isolated system is one that has no external forces acting on it |
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Work |
When a force acts on an object and causes the object to be displaced, we say that work has been done on the object. |
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Work energy theorem |
The net work done on an object is equal to the change in the objects kinetic energy. |
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Kinetic energy |
The energy an object possesses as a result of its motion |
Ek=1/2 mv^2 |
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Potential energy |
The energy an object possesses due to its position with respect to some reference point |
Ep=mgh |
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Mechanical energy |
The sum of the kinetic and the potential energy is called the mechanical energy |
Em=Ek+Ep |
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Power |
Power is defined as the rate at which work is done. |
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Newton's first law |
An object will maintain its state of motion unless compelled to do so by an unbalanced or resultant force |
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Newton's second law |
When a net force acts on an object of mass, the object accelerates in the direction of the net force. The acceleration is directly proportional to the net force and inversely proportional to the mass. |
Fnet=ma |
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Newton's third law |
When object A exerts a force on object B, object B simultaneously exerts an oppositely directed force of equal magnitude on object A. |
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Potential difference |
The difference in electrical potential between two points. |
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Torque |
The ability of a force to cause an object to rotate about a point or an axis. It is also reffered to as the moment of a force |
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Static equilibrium |
A rigid object is Said to be in static equilibrium if it is neither rotating nor translating |
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Hookes law |
Is an approximation that states that the extension of a spring is in direct proportion with the load applied to it. |
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Elasticity |
Elasticity is the property of an object or material which causes it to be restored to its original shape after distortion. |
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Mass density |
Mass density is defined as the mass of an object divided by its volume. |
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Pressure |
Pressure is defined as the force acting perpendicular to a surface, divided by the area of the surface. |
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Convection |
Convection is the process in which heat is carried from one place to another by the bulk movement of a fluid. |
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Conduction |
Conduction is the process whereby heat is transferred directly through a material, with any bulk motion of the material playing no role in the transfer. |
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Radiation |
Radiation is the process in which energy is transferred by means of electromagnetic waves. |
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Frequency |
Is the number of complete cycles that pass a given point in one second |
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Wavelength |
The distance between the centres of two successive condensations or rarefractions. |
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Sound intensity |
Is defined as the sound power that passes perpendicularly through a surface divided by the area of that surface. |
I=P/A |
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Decibels |
Is a measurement unit used when comparing two sound intensities. |
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A B L S |
Wa la la you stupid bastard |
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