IB Physics HL Definitions Study Guide Exam And Actual Answers.
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Course
IB Physics
Institution
IB Physics
Displacement - Answer Position of an object relative to its starting position.
Velocity - Answer Rate of change of displacement.
Speed - Answer Rate of change of distance.
Acceleration - Answer Rate of change of velocity.
Newton's First Law - Answer An object continues in...
IB Physics HL Definitions Study Guide
Exam And Actual Answers.
Displacement - Answer Position of an object relative to its starting position.
Velocity - Answer Rate of change of displacement.
Speed - Answer Rate of change of distance.
Acceleration - Answer Rate of change of velocity.
Newton's First Law - Answer An object continues in uniform motion in a straight line/ at rest unless a
resultant force acts.
Newton's Second Law - Answer The acceleration of an object is proportional to and in the same
direction as its resultant force.
Newton's Third Law - Answer When 2 objects react, the exert equal and opposite forces on each other.
Linear Momentum - Answer The product of mass and velocity.
Impulse - Answer Change in momentum.
Law of conservation of momentum - Answer Momentum of object in system stays the same in a closed
system.
Work - Answer Force X distance moved in direction of force.
Kinetic Energy - Answer The energy an object has due to it's motion
, Change in GPE - Answer The energy an object has due to its position above the Earth.
Elastic Collision - Answer KE is conserved and objects bounce off with the same speed it did before in
opposite directions.
Inelastic Collision - Answer Maximum loss of KE, objects stick together & momentum is still conserved.
Explosion - Answer Objects move away from each other, internal energy becomes KE.
Efficiency - Answer Ratio of work out: energy put in.
Mole - Answer Amount of substance that has the same number of molecules as the number of of
molecules as the number of atoms in 12g of C-12.
Molar Mass - Answer Mass of 1 mole of the substance.
Avogadro's Constant - Answer Number of molecules in 1 mole = 6.022 × 10²³
Specific Heat Capacity - Answer The energy needed to increase the temperature of of 1 kilo of an
object by 1K.
Thermal Capacity - Answer The energy needed to increase the temperature of an object by 1K.
Specific Latent Heat - Answer Amount of heat needed to change the state of 1 kilo of a substance
WITHOUT a change in temperature.
Pressure - Answer Force per unit area.
Displacement (SHM) - Answer Distance away a particle is from its equilibrium position.
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