Work And Machines

Test Description: Integrated science

Instructions: Answer all questions to get your test result.

1) A slanted surface used to raise an object is a(n) ____.

2) A device that does work with only one movement and changes the size or direction of a force is a(n)В ____.

3) A bar that is free to pivot about a fixed point is a ____.

4) The rate at which work is done is called ____.

5) The amount by which a machine multiplies an effort force is called the ____.

6) An inclined plane with one or two sloping sides forms a machine called a ____.

7) A machine that changes only the direction of a force has a mechanical advantage ofВ ____.

8) Two simple machines that are part of a bicycle are a(n)____.

9) An arrangement of pulleys designed to reduce the effort force is called a ____.

10) When two or more simple machines work together, they are called a(n)____.


*select an answer for all questions

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