| Question | Answer |
|---|---|
| What is a Spring Scale? | A simple device used to measure Newtons. |
| Define Effort. | The force needed to move a load or overcome resistance (student). |
| Explain Newton. | It is the unit used to measure effort. |
| What is a lever arm? | The stick or beam free to pivot at a point (board that Mrs. Boston stood on). |
| Define Fulcrum. | The point where the lever arm pivots (4 X 4 under the board). |
| What is the load? | The mass lifted or the resistance overcome by the lever (Mrs. Boston). |
| What does a lever do? | It is a simple machine used to make life easier. |
| Define Advantage. | It is the benefit gained by using levers or other simple machines. |
| What does 'N' stand for? | It is an abbreviation for Newton. |
| Describe a First class lever. | It has the fulcrum in the middle and the load and effort on the ends. |
| Describe a Second class lever. | It has the load in the middle and the effort and fulcrum on the ends. |
| Describe a Third class lever. | It has the effort in the middle and the load and fulcrum on the ends. |
| You make the effort easiier by……… | Moving the lad closer to the fulcrum. |
| Levers can be set up in how many ways? | They can be set up in three basic ways – Class 1, Class 2, and Class 3. |
