Name: Types of Simple Machines
Uploaded: 2019-07-19
Duration: 2 min 37 s
Description: Here is an interesting video on six types of simple machines which makes our work easier in our regular activity. Jump into this to know more on these machines.

Question

Solve the crossword puzzle using the hints given below:

Across:
2. A lever we use to eat food with
7. A wheel that turns freely on an axis
8. In a class 2 lever, this is at the centre
9. It is an example of a class 2 lever with a wheel

Down:
1. In class 3 lever, it is in between the fulcrum and load
2. It is a special type of inclined plane
3. It is a wedge
4. A complex machine
5. It is an example of a class 3 lever
6. It is a class 1 lever

Accepted Answer

Across:
2. A lever is a simple machine made of a rigid beam and a fulcrum. A lever we used to eat food is a spoon.
7. The machine used to change the direction of force is a single-fixed pulley. A wheel that turns freely on an axis is called a pulley.
8. In a class 2 lever, load is at the centre. That is, it is situated between the effort and the fulcrum.
9. Wheelbarrow is an example of a class 2 lever with a wheel. A wheel is placed at the front, along which the wheelbarrow can be moved freely, thus it forms the fulcrum.

Down:
1. In the class 3 lever, the effort is in between the fulcrum and load.
2. Screw is a special type of inclined plane wound around a rod. It looks like a nail with grooves cut in it.
3. A wedge is a simple machine that almost looks like a ramp or an inclined plane. It is actually made up of two inclined planes joined together. Nail is a wedge.
4. Complex machines are made by the combination of two or more simple machines. Bicycle is a complex machine.
5. Knief is an example of a class 3 lever.
6. In the class 1 lever, the fulcrum lies between the load and effort. Pliers are a class 1 lever.

Hence,

Important Questions on Simple Machines

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