P8 Forces in Balance 0.0 / 5 ? PhysicsForcesGCSEAQA Created by: Beth.2002Created on: 19-03-18 21:19 What is the difference between a scalar and a vector? A scalar is a quantity with magnitude only; a vector is a quantity with both magnitude and direction. 1 of 7 An arrow is drawn with a scale of 2 cm to represent 5 N. What length arrow should be drawn to represent 17.5 N force? 7 cm. 2 of 7 What is the SI unit of force? Newton, N 3 of 7 In what direction does the force of weight always act? Vertically downwards. 4 of 7 What is the magnitude and direction of the result force when a 7 N force and a £ N force act in the same direction on an object? 10 N in the same direction as the two forces 5 of 7 What is the magnitude and direction of the resultant force when a 7 N force and a 3 N force act in opposite directions on an object? 4 N in the same direction as the 7 N force 6 of 7 A door opens when you apply a force of 20 N at right angles to it, 0.6 m from the hinge. What is the moment of the force about the hinge? 12 N m 7 of 7
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