Ch.10 Work & Machine
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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| When a force changes the motion of an object | Work
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| A machine with few or no moving parts | Simple Machine
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| Two or more simple machiens put together | Compound Machine
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| The ability to do work | Energy
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| A ball player using a bat to hit a ball is an example of ... | Work
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| Why does a rock on the hill have energy? | It can fall down the hill
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| How does a machine make work easier? | It lets you change the direction of a force
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| How are a pulley and a lever the same? | both help pull something up
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| Why is a winding road easier to travel up than a hill straight up? | the winding road won't be so hard to pedal even though it is longer.
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| What simple machine are fish like as they swim through the water? | a wedge
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| What happens as your leg kicks a soccer ball? | Leg stops moving as fast
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| Why does your leg stop moving when it kicks a soccer ball? | the force goes into the ball and the ball starts moving
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| You have a heavy pack and need to climb stairs, would you choose the steep stairs with few steps or the stairs with more steps but less steep? | More stairs would be easier because not as steep.
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| Why does a bike coast down a hill? | The bike has energy because it is going down hill.
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| What are the 6 simple machines we talked about? | ramp, pulley, lever, wheel and axle, screw and wedge.
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| http://www.mikids.com/Smachines.htm Go to the website and explore simple machines | be able to identify pictures
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| What is a simple machine with a lever and a fulcrum | Wheelbarrow
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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.
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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:
CPS3rd
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