Birkofer Ch. 18 Work and Machines A
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| What is Work? | is when a force causes and object to move in the direction of the force.
🗑
|
||||
| What is power? | Power is the rate at which work is done
🗑
|
||||
| Define Machine | A machine is a device that helps make work easier by changing the size or direction of a force.
🗑
|
||||
| lever | a simple machine consisting of a bar that pivots on a fixed point ( fulcrum ).
🗑
|
||||
| inclined plane | a simple machine that is a straight slated surface.
🗑
|
||||
| wedge | is a double sided inclined plane that moves
🗑
|
||||
| pulley | is a simple machine consisting of a grooved wheel that holds a rope or a cable
🗑
|
||||
| compound machine | made of two or more simple machines
🗑
|
||||
| Work input | the work you do on a machine.
🗑
|
||||
| Work output | the work done by the machine
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
birkoferj
Popular Physical Science sets