Question

1. Write and describe the all type of simple machines
2. What do you mean by first-aid ?class 5​

Answer 1

1. They are the simplest mechanisms known that can use leverage (or mechanical advantage) to increase force. The simple machines are the inclined plane, lever, wedge, wheel and axle, pulley, and screw. Six simple machines for transforming energy into work.

2. First Aid The immediate help given to an injured person. Fracture A break or crack in a bone. Rabies A disease caused in humans due to bites of infected animals. Fire Extinguisher A device used to put off fires.

Answer 2

Answer:

Explanation:

1. They are the simplest mechanisms known that can use leverage (or mechanical advantage) to increase force. The simple machines are the inclined plane, lever, wedge, wheel and axle, pulley, and screw. Six simple machines for transforming energy into work                                        
2. help given to a sick or injured person until full medical treatment is available