Apologia Exploring Creation with General Science Module 4
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Applied science | The motivation behind it is aimed at trying to find something useful
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| Technology | Is a new process or machine that makes life better or makes a job easier
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| Simple Machine | A device that either multiplies or redirects a force
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| Force | A push or pull exerted on an object to change that object's velocity
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| Fulcrum | A fixed point
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| Lever | Simple machine that magnifies either force or motion
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| Effort | The force being applied to the lever
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| Resistance | The weight the machine is manipulating
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| Mechanical Advantage | The amount by which force or motion is magnified in a simple machine
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| Mechanical advantage for the lever | Distance from the fulcrum to effort divided by the distance from fulcrum to resistance
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| First class lever | The fulcrum is positioned between the effort and resistance
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| Second class lever | The fulcrum is positioned at one end of the bar and the resistance is between the fulcrum and the effort
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| Third class lever | The fulcrum is at one end of the bar and the effort is between the fulcrum and the resistance
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| Diameter | The length of a straight line that travels from one side of a circle to another and passes through the center of a circle
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| Mechanical advantage for the wheel and axle | Diameter of the wheel divided by the diameter of the axle
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| Pulley | A grooved wheel that rotates freely on a frame
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| Block and tackle | Multiple pulley system. Mechanical advantage for pulleys in a block and tackle = numbers of pulleys used
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| Inclined Plane | Allows you to slide the load up rather than lifting it straight.
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| Mechanical advantage of the inclined plane | Length of the slope divided by height
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| Wedge | Generally used to separate things
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| Mechanical advantage for the wedge | Length of the slope divided by height
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| Pitch | The vertical distance between the threads of the screw
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| Mechanical advantage of the screw | circumfrence divided by pitch
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| Circumference | The distance around a circle, equal to 3.1416 times the circle's diameter
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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.
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Created by:
barbara.macri
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