Match the column A with column B and column C. A B C 1. Lever a. Sloping i) Slide 2. Wheel b. Inclined plane ii) V-shaped 3. Inclined plane c. Load iii) Rolling pin 4. Wedge d. Axle iv) Effort

A lever is a simple machine which is preferably used for load holding purposes. Here it has a fixed point called the fulcrum. The arrangement of load, effort and fulcrum determines the type of lever. The wheel and axle is a simple machine consisting of a large wheel secured to a smaller wheel or rod called an axle. When either the wheel or axle turns, t he other part also turns. The linear motion of the axle is obtained by rotating the wheel to reduce friction. An inclined plane is a simple machine which is used to lower or raise heavy objects with the help of a sloped surface. It helps to lift things up. As the slope is steeper, more effort is required to push the load. A machine helps us to do work with less effort. A wedge is a simple machine composed of one or two inclined planes placed together in the shape of a V. A double wedge can be thought of as two inclined planes joined together with their sloping surfaces outward. A B C 1. Lever c. Load iv) Effort 2. Wheel d. Axle iii) Rolling pin 3. Inclined plane a. Sloping i) Slide 4. Wedge b. Inclined plane ii) V-shaped

A	B	C
1. Lever	a. Sloping	i) Slide
2. Wheel	b. Inclined plane	ii) V-shaped
3. Inclined plane	c. Load	iii) Rolling pin
4. Wedge	d. Axle	iv) Effort

Which of the following levers would be the best choice to lift a heavy box?

Important Questions on Functions

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