A wheelbarrow is a small open cart with one wheel at the front and two handles at the rear that is used for carrying things. Wheelbarrow is an example of a second class lever. In this, the load is between the fulcrum and the effort.

A windlass is a continuously simple machine. One part of a windlass is a drum on which a rope is wound. The other part is a lever which helps to turn the drum. A windlass is used to raise and lower elevators.

A screw is a simple machine which is an inclined plane around a cylinder. These are commonly used to hold things together.

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Subject Experts Solutions for Exercise 1: TEST PAPER

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Subject Experts Science Solutions for Exercise - Subject Experts Solutions for Exercise 1: TEST PAPER

Attempt the free practice questions from Exercise 1: TEST PAPER with hints and solutions to strengthen your understanding. Frank PRIMARY SCIENCE. solutions are prepared by Experienced Embibe Experts.