Centre of gravity - Study guides, Study notes & Summaries

Turning Effect of Forces 1 Describe the moment of a force as a measure of its turning effect and give everyday examples 2 Define the moment of a force as moment = force × perpendicular distance from the pivot; recall and use this equation 3 Apply the principle of moments to situations with one force each side of the pivot, including balancing of a beam 4 State that, when there is no resultant force and no resultant moment, an object is in equilibrium 5 Apply the principle of moments to ot...

Scalar - Answer quantities with only magnitude such as speed, distance, time and mass. Vector - Answer quantities with a magnitude and direction e.g. acceleration, force momentum and weight. A vector quantity can be represented as an arrow, the size representing the magnitude and the direction, the direction. Non-contact force - Answer the objects are physically separate e.g. magnetism/gravity/electrostatic. 3 non-contact forces - Answer magnetism gravity electrostati...

Chord - Answer-Straight line joining leading edge to the trailing edge Camber line - Answer-Line which runs midway between upper and lower surfaces of the airfoil joint the trailing and leading edge. Camber - Answer-The measure of the curvature of the airfoil. Expressed as a percentage Angle of attack - Answer-The angle between the chord of the wing and the relative airflow Centre of pressure - Answer-Lift and drag act through the centre of pressure of the wing. The centre of pressure mov...

__ argued that the Earth cannot be flat b/c a traveller moving south sees stars that were previously hidden below the previous horizon - ️️Aristotle __ argued that the earth must be spherical, b/c the shadow that the earth casts on the moon during a lunar eclipse is always part of a circle, no matter the moon's position - ️️Aristotle __ determined that gravity is responsible for keeping the Moon in it's orbit around the earth - ️️Newton __ discovered that the orbits of planets a...

Centre of Gravity vs Centre of Mass - 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? - It takes the same amount of force. When you're applying a force greater than the weight its...

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...

ATPL - AIRLAW 1/4 (MPL AIRLAW) - Questions and Answers What minimum ground visibility is required to enable a SVFR flight to take off from an aerodrome in a CTR? a. 1000m b. 1500m c. 2000m d. 3000m If so equipped, when should an aircraft display the anti-collision light? a. Only at night in flight, but not on the ground if being towed b. Whilst taxiing but not whilst being towed c. Only at night with engines running d. At all times on the ground when the engines are running What radius from a ...

Complete blood count (CBC) RBC Haemoglobin Haematocrit WBC Platelets Decreased Levels (CBC) Anaemia Bone Marrow Suppression Chronic infection Haemorrhage renal disease Vitamin b6. B12, or folic acid deficiency Increased Levels (CBC) Major Burns cardiovascular disease Chronic Lung Disease Congenital heart defect Polycythaemia vera Basic Metabolic Panel (BMP) Blood Urea Nitrogen (BUN) Creatine Potassium Sodium Calcium Chloride Glucose comprehensive metabolic panel (CMP) ...

IOP3703 Exam Memo Part 1 – The competent human being: The latest research shows the importance of developing employees on all levels of the organisation on a continual basis. Human Capacity Development – the focus is on developing behaviour, skills, attitudes and competencies that will enhance the overall quality of a person’s work life. Growth Psychology’s aim is to find and define a healthy personality. They argue that it is necessary for human beings to strive for that a...

AQA Physics paper 2 exam with complete solutions 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 suppor...