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;
31 Cards in this Set
- Front
- Back
Newton's first law (Equilibrium)
|
An object remains at rest or continues moving with constant velocity unless a result force acts.
|
|
Newton's second law (F=ma)
|
Force acting on an object is proportional to the rate of change of it's momentum and acts in the same direction of this change.
|
|
Newton's third law (Reaction force)
|
If body A exerts a force on body B, then body B exerts an equal and opposite force on body A.
|
|
Momentum
|
Product of an objects mass and it's velocity. p=mv
|
|
Impluse
|
The change of momentum. Product of average force and the time for which it acts.
|
|
Conservation of momentum
|
Total momentum before a collision is equal to the total momentum after the collision provided no external force acts. (Always conserved).
|
|
Elastic collisions
|
KE and momentum conserved.
|
|
Inelastic collision
|
KE not conserved - energy loss. Total energy before and after remains the same, but some is lost from the system. Momentum is conserved.
|
|
Radian
|
Angle subtended by an arc length equal to the radius of the circle.
|
|
Gravitation field strength
|
Force per unit mass at a point in the gravitational field.
|
|
Geostationary
|
A satellite with an equatorial orbital period equal to the rotational period of the planet.
|
|
SHM
|
An oscillation in which the acceleration of an object is proportional it it's displacement from the equilibrium position and directed towards that position.
|
|
Displacement
|
Distance and direction of an object from it's equilibrium position.
|
|
Amplitude
|
Maximum displacement from it's equilibrium position.
|
|
Period
|
Time take for an object to perform one complete oscillation.
|
|
Frequency
|
Oscillations per second.
|
|
Angular frequency
|
Period expressed in radians.
|
|
Phase difference
|
The fraction of an oscillation between two oscillators expressed in radians.
|
|
Pressure
|
Force per unit area
|
|
Internal energy
|
Total sum of randomly distributed kinetic and potential energies associated with the particles of a system.
|
|
SHC
|
Energy required to raise the temperature of a 1kg mass by 1K.
|
|
SLH
|
Energy required to change the state of 1kg of substance at it's melting or boiling point.
|
|
Boyle's law
|
Pressure exerted by a fixed mass of gas at a constant temperature is inversely proportional to it's volume.
|
|
Newton's law of gravitation
|
Any two point masses attract each other with a force directly proportional to the product of their masses and inversely proportional to the square of their separation.
|
|
Temperature
|
Property which determine direction of heat flow.
|
|
Heat
|
Form of energy which flows.
|
|
Brownian motion
|
The random and jerky motion of particles.
|
|
Angular displacement
|
Angle through which an object moves in a circle.
|
|
Damped motion
|
Describes an oscillatory motion where amplitude decrease with time due to energy loss.
|
|
Centripetal force
|
Net force acting on an object moving in a circular motion towards the center.
|
|
Centripetal acceleration
|
Acceleration of an object moving in a circular motion direction towards the center.
|