A force is necessary to change the state of rest or uniform motion in a straight line of a body.
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Linear Momentum
The mass of an object multiplied by its velocity
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Newton's Second Law
The rate of change of momentum of an object is directly proportional to the net force acting upon it.
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One Newton
The force that gives a mass of 1kg an acceleration of 1ms-1 each second.
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Newton's Third Law
When body A exerts a force on body B, then body B exerts on body A a force that is equal, opposite in direction and of the same type.
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The Principle of the Conservation of Momentum
In any direction in the absence of external forces, the total momentum of a system remains constant
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Impulse
Equals the change in momentum. F∆t
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Perfectly Elastic Collision
One in which no momentum or kinetic energy is lost
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Inelastic Collision
A collision where momentum is conserved but kinetic energy is not.
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Field
A region where a force acts
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Gravitational Field Strength
The force acting per unit mass at that point.
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Gravitational Force
The gravitational force of attraction between two bodies is directly proportional to the product of their masses and inversely proportional to the square of the distance between them.
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Period of a Planet
The time it takes to complete one orbit around the Sun.
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Displacement
The distance an object has moved from its rest postion.
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Frequency
The number of oscillations per unit time at any point.
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Period
Time taken for one complete pattern of oscillation to taje place at any point.
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Damping
Deliberately reducing the amplitude of an oscillation.
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Resonance
The build-up of a large-amplitude oscillation when the frequencies of vibrating objects match.
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Phase
Whether a substance is a solid, liquid or a gas.
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Internal Energy
The sum of the random distributions of kinetic and potential energies of all the molecules in the body.
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Ideal Gas
A gas that has internal energy only in the form of random kinetic energy.
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Specific Heat Capacity
The quanitity of thermal energy that is required to raise the temperature of a unit of mass of a substance by a unit of temperature rise.
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Specific Latent Heat of Fusion
The quantity of energy per unit mass required to change it at constant temperature from a solid to a liquid.
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Specific Latent Heat of Vapourisation
The quantity of energy per unit mass required to change it at constant temperature from a liquid into a vapour.
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Boyle's Law
The volume of a fixed mass of gas is inversely proportional to the pressure exerted on it, provided that the temperature is kept constant.
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Boltzmann Constant
The gas constant for a single molecule.
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Other cards in this set
Card 2
Front
The mass of an object multiplied by its velocity
Back
Linear Momentum
Card 3
Front
The rate of change of momentum of an object is directly proportional to the net force acting upon it.
Back
Card 4
Front
The force that gives a mass of 1kg an acceleration of 1ms-1 each second.
Back
Card 5
Front
When body A exerts a force on body B, then body B exerts on body A a force that is equal, opposite in direction and of the same type.
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