Trashcan Review Ch 12 2 teams Each Questions Labeled A worth 25 pts

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Presentation transcript:

Trashcan Review Ch 12 2 teams Each Questions Labeled A worth 25 pts Each Question Labeled B worth 50 pts -extra shot from mark 1 25 extra points -extra shot from mark 2 75 extra points

A Questions B Questions 2 16 4 18 6 20 8 22 10 24 12 26 14 28 30 B Questions 1 17 3 19 5 21 7 23 9 25 11 27 13 29 15

What do you call the transfer of energy through motion?

The kind of energy that comes from the motion of objects is:

A What is power?

What does potential energy depend on? B What does potential energy depend on?

Kind of energy in the form of motion that depends on mass and velocity

What does chemical energy depend on? B What does chemical energy depend on?

What is the effort force?

B If you have a IMA (ideal mechanical advantage) of 1 what does this mean?

What is the resistance force?

B If you have a IMA (ideal mechanical advantage) of <1 what does this mean?

A Why do we use machines?

B If you have a IMA (ideal mechanical advantage) of >1 what does this mean?

A What is a lever?

What can change in a 1st class lever? 2nd? 3rd? B What can change in a 1st class lever? 2nd? 3rd?

A What is a pulley?

The IMA of a pulley always equals the number of ___________

A What is a wheel and axle?

B What is the IMA of a movable pulley? Block and tackle pulley? Fixed pulley?

What is a inclined plane?

B Does the ability to do work increase or decrease as it is converted from one form to another?

A What is a wedge?

Does kinetic energy depend more on mass or velocity? B Does kinetic energy depend more on mass or velocity?

A What is a zipper?

B Where will a boulder have more potential energy? At the top of a cliff or at the bottom of a cliff?

A What is a screw?

B True or False: in an ideal machine the work you put in always equals the work you get out

What is a compound machine?

B Give an example of each of the following: Lever- Pulley- Wheel and axle- Screw- Wedge- Zipper- Inclined plane-

A True or False: you can never get more work out of something than you put in.

B Give an example of a compound machine and tell how it is a compound machine.

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