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Ch.10 Work & Machine
| Question | Answer |
|---|---|
| When a force changes the motion of an object | Work |
| A machine with few or no moving parts | Simple Machine |
| Two or more simple machiens put together | Compound Machine |
| The ability to do work | Energy |
| A ball player using a bat to hit a ball is an example of ... | Work |
| Why does a rock on the hill have energy? | It can fall down the hill |
| How does a machine make work easier? | It lets you change the direction of a force |
| How are a pulley and a lever the same? | both help pull something up |
| 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. |
| What simple machine are fish like as they swim through the water? | a wedge |
| What happens as your leg kicks a soccer ball? | Leg stops moving as fast |
| Why does your leg stop moving when it kicks a soccer ball? | the force goes into the ball and the ball starts moving |
| 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. |
| Why does a bike coast down a hill? | The bike has energy because it is going down hill. |
| What are the 6 simple machines we talked about? | ramp, pulley, lever, wheel and axle, screw and wedge. |
| http://www.mikids.com/Smachines.htm Go to the website and explore simple machines | be able to identify pictures |
| What is a simple machine with a lever and a fulcrum | Wheelbarrow |
Created by:
CPS3rd
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