Forces 3.0 / 5 based on 1 rating ? PhysicsForcesGCSEAQA Created by: Livie02Created on: 19-11-17 09:34 What is a Scalar Quantity? It has magnitude 1 of 31 What is a Vector Quantity? Has magnitude and direction 2 of 31 What is a contact force? The objects are actually touching 3 of 31 What are non-contact forces? The objects aren't touching 4 of 31 What is the equation for weight? mass x gravitational field strength 5 of 31 What is an resultant force? When more than one force acts on an object 6 of 31 What is the equation for work Done? force x distance 7 of 31 What is elastically deformed? If the object returns to its original shape after the forces are removed 8 of 31 What is inelastically deformed? if the object doesn't return to to its original shape 9 of 31 What is the equation for spring constant? force/ extension 10 of 31 What is a fluid? Can be either a liquid or gas 11 of 31 What is the equation for pressure? force normal to a surface/area of that surface 12 of 31 What is the atmosphere? relatively thin layer of air around the earth 13 of 31 what is the equation for the pressure in a column? height of the column x density of the liquid x gravitational field strengh 14 of 31 What is upthrust? The upward force exerted by a fluid on a submerged object 15 of 31 What is distance? it is a scalar quantity and shows how far an object moves 16 of 31 What is displacement? It is a vector quantity which has a magnitude that describes how far the object has travelled from its origin, measure in a straight line 17 of 31 What is speed? Measures how fast an object is travelling 18 of 31 What is the equation for distance travelled? speed x time 19 of 31 What is velocity? A vector quantity which is the speed of an object in a given direction 20 of 31 What is Newtons First Law? An object will remain in the same state of motion unless acted on by an external force 21 of 31 What is intertia? The tendency for objects to continue in the same state of motion 22 of 31 What is an distance time graph? Represents the motion of an object travelling in a straight line 23 of 31 What is Acceleration? Measures how quickly it speeds up, slows down or changes direction 24 of 31 What is the equation for acceleration? change in velocity/time taken 25 of 31 What is Newtons Second Law? the acceleration of an object is proportional o the resultant force acting on the object and inversely proportional to the mass of the object 26 of 31 What is terminal velocity? The point in which the object falls at a steady speed 27 of 31 What is Newtons Third Law? For every action there is an equal and opposite reaction 28 of 31 What is the equation for momentum? mass x velocity 29 of 31 What is the thinking distance? The distance travelled during the drivers reaction time 30 of 31 What is the braking distance? The distance travelled under the braking force 31 of 31
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