Elastic collisions Study guides, Class notes & Summaries

KPE160 DOUG PREP QUESTIONS AND ANSWERS 100% PASS Centre of Gravity vs Centre of Mass - Answer- centre of mass depends on the distribution of mass (not gravitational field) and it doesn't change even if you move or orient yourself differently. Centre of gravity is a unique point which weight is balanced, it can change based on orientation and also takes into account mass distribution. Is it harder to lift or lower a mass? Which feels harder and why? - Answer- It takes the same amount of f...

AQA Physics paper 2 Exam With Complete Solutions 2024 force - answer- this can change something's speed, direction, or shape - it can be push/repulsive or pull/attractive vector - answera quantity with magnitude (size) AND direction scalar - answera quantity with magnitude (size) but NOT direction examples of vectors - answerforce, weight, velocity, acceleration, displacement examples of scalars - answerdistance, mass, speed, energy, time contact forces - answeroccur when an object is s...

AQA Physics paper 2 Exam With Complete Solutions 2024 force - answer- this can change something's speed, direction, or shape - it can be push/repulsive or pull/attractive vector - answera quantity with magnitude (size) AND direction scalar - answera quantity with magnitude (size) but NOT direction examples of vectors - answerforce, weight, velocity, acceleration, displacement examples of scalars - answerdistance, mass, speed, energy, time contact forces - answeroccur when an object is s...

Respiratory care The diagnostic evaluation, and treatment, of patients with cardiopulmonary disorders. History of respiratory therapy Joseph Priestley - discovered oxygen Joseph Black - discovered carbon dioxide Thomas Beddoes - was the Father of Inhalation Therapy CRT (Certified Respiratory Therapist) -AS program -Pass NBRC Exam (score determines a CRT) RRT (registered respiratory therapist) -AS, BS or MS program -Pass NBRC Exams -Specialty Credentials Ameri...

STP - correct answer 0°C and 1 atm Ideal Gas Law - correct answer PV = nRT At STP, 1 mol of gas will occupy ... - correct answer 22.4 L Characteristics of an Ideal Gas - correct answer 1. Gas molecules have zero volume 2. Gas molecules exert no forces other than repulsive forces due to collisions 3. Gas molecules make completely elastic collisions 4. The avg. kinetic energy of gas molecules is directly proportional to the temperature of the gas Partial pressure of a gas (equation...

Kinematics Equations Force of Gravity Between Two Objects Units of G = N∗m²/kg² Brainpower Read More 0:13 / 0:15 Kinetic Friction Static Friction Uniform Circular Motion - Velocity Velocity vector is constantly changing and is tangential to the circle of motion Centripetal Acceleration The acceleration vector always points toward the center of the circle and constantly changes direction as the object moves. Centripetal Force Torque θ...

What are the standard units of mass, length and time? - ANSWER-Kilograms, metres and seconds What are the SI prefixes for 10^3, 10^6 and 10^9? - ANSWER-kilo, mega, giga What are the SI prefixes for 10^-3, 10^-6 and 10^-9? - ANSWER-milli, micro, nano What is work done? - ANSWER-The energy transferred in moving something What is power? - ANSWER-the rate at which work is done What happens to a gas when it is compressed? - ANSWER-Particles get closer together Gas pressure increases ...

What is Momentum? - ANSWER-Mass x Velocity p = mv State Newton's Second Law of motion (A2 definition) - ANSWER-Resultant Force is proportional to the rate of change of momentum and in the same direction What are the two units of momentum? - ANSWER-kgms^-1 Ns What is Impulse? - ANSWER-Force x time Change in momentum What is the equation for the conservation of linear momentum? - ANSWER-m1u1 +m2u2 = m1v1 +m2v2 Describe the law of conservation of linear momentum - ANSWER-In all c...

Energy is transferred between stores - Thermal, kinetic, gravitational potential, elastic potential, chemical, magnetic, electrostatic, nuclear Energy is transferred... - Mechanically (by a force doing work), electrically (work done by moving charges), by heating or by radiation (like light or sound) When a system changes, energy is transferred - It can be transferred into or away from the system, between objects in the system or between different types of energy stores. Closed systems are...

MCAT AAMC FL 1EXAM QUESTIONS AND ANSWERS What was the principal factor determining the migration of individual components in a sample when performing chromatography? -Answer-the relative amount of hydrogen bonding to the stationary phase Rf value -Answer-Distance travelled by substance / distance travelled by solvent stereospecific reaction -Answer-a special type of stereoselective reaction in which the stereochemistry of the product is dependent on the stereochemistry of the starting mate...