C4 Vectors 5.0 / 5 based on 3 ratings ? MathematicsVectorsA2/A-levelEdexcel Created by: TassillowCreated on: 28-05-16 18:48 What is a vector in the opposite direction a? -a 1 of 16 What is a vector parallel to a? ta where t is a non-zero constant 2 of 16 What is the unit vector in the x direction? i 3 of 16 What is the unit vector in the y direction? j 4 of 16 What is the unit vector in the z direction? k 5 of 16 What is the other word for magnitude? Modulus 6 of 16 What is the modulus of xi+yj+zk? sqrt(x^2+y^2+z^2) 7 of 16 What is the form xi+yj+zk? is written in? Cartesian 8 of 16 What two forms can vectors be written in? Cartesian component vector & Column matrix vector 9 of 16 What is a vector? A quantity with both magnitude and direction 10 of 16 When is a vector perpendicular? When a.b=0 11 of 16 When is a vector parallel? When a.b=|a|*|b| 12 of 16 How do you calclate a.b? a1b1+a2b2+a3b3 13 of 16 What is the equation for a vector parallel to b and passing through point A? r=a+tb 14 of 16 What is the equation for a vector passing through points C and D? r=c+t(d-c) 15 of 16 What is the equation for the angle between two vectors? cosx=|(a.b)/(|a|*|b|)| 16 of 16

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