1. Warm Up 12/10 Review from Friday’s Project Planning Stage You team should have the following complete from your planning on Friday. Use the checklist to be sure. My group has chosen a team name. ______ My group has determined what our machine’s purpose is. _______ My group has determined which 3 simple machines to use. _______ My group has drawn a rough sketch of our compound machine. _______

2. Closing 12/10 Compound Machine Question Name two simple machines that are included in this compound machine:

3. Warm Up 12/11 Practice CRCT Question : What type of simple machine is this?

4. Closing 12/11 Practice CRCT Question What type of simple machine makes this amusement ride work?

5. Warm Up 12/12 Practice CRCT Question: Work is mostly affected by two things…what are they? a.gravity and friction b.force and distance c.force and direction d.friction and force

6. Closing 12/12 Practice CRCT Question: Power is a measure of two things. What are they? A.work and time B.force and distance C.work and speed D.distance and time

7. Warm Up 12/13 Which one of the following machines has the greatest mechanical advantage?

8. Closing 12/13 Practice CRCT Question If the work input is 7 J and the work output is 35 J, what is the mechanical efficiency of the machine? a.5 N b.500% c.5% d.500 N

9. Warm Up 12/14 Practice CRCT Question: Name 2 simple machines that are in this compound machine?

10. Closing 12/14 Practice CRCT Question What are two simple machines that are in this compound machine?