Turning Effect of Force 1. Define the moment of a force? Is the product of the force (F) and the perpendicular distance (d)Is the product of the force (F) and the parallel distance (d)Is the product of the force (F) and the perpendicular distance (d) between the point of support and the line of action of the forceNone of the mentioned Question 1 of 13 2. Forces that are equal and are acting in opposite directions to one another are said to be? Anti-parallel forces Resultant forces Couple forces Anti misslesQuestion 2 of 13 3. Which one of the following is not an example of anti-parallel forces? Forces applied on the steering wheel of a car when going round a bend Forces applied when opening an oil-tank valve Forces applied on a wheel spanner tightening or untightening a nut Bouncing off sound waves to determine the depth of seabed. Question 3 of 13 4. The moment of anti-parallel forces is the product of one of the forces and the perpendicular between distances between them. True False Maybe None Question 4 of 13 5. How can you obtain the maximum turning effect at a point? When the distance from the point of support is perpendicular to the line of action When the distance of force is perpendicular to the line of action When the distance of force is parallel to the line of action When you grease/lubricate the point where there is the turning effect (fulcrum)Question 5 of 13 6. Mention the SI UNIT OF the MOMENT OF a FORCE? Kgm Nm Bars Newton Question 6 of 13 7. Mention the 2 things upon which the moment of force about a point depends:- Magnitude of the force Direction of the force Distance of the force from the point of support all of the above Question 7 of 13 8. Which of the following is not among the applications of anti-parallel forces? Turning a car's steering wheel Opening and closing a water tap Taking a corner-bend with a bicycle handle bars Operating an electric door-bellQuestion 8 of 13 9. State the principle of moments Sum of the clockwise moments about a point must be equal to the sum of anticlockwise momentsSum of the anticlockwise moments about a point is more than clockwise momentsFor a system in equilibrium the sum of the clockwise moments about a point must be equal to the sum of anticlockwise moments.Is also known as the Law of the Lever Question 9 of 13 10. What is the name of the point of support? Pivot Fulcrum Wedge axle Question 10 of 13 11. The algebraic sum of the moments of parallel forces is? ONE TWO ZERO RESULTANT Question 11 of 13 12. Cars are made to turn round corners by exerting two equal and opposite forces False True Maybe None Question 12 of 13 13. The turning effect of a force is called a moment of the force. True or False? True False Maybe None Question 13 of 13 Loading...
