Science Test Help! 10 points!!?

I have both a Science and a Chinese UNIT test tomorrow. I have to study for the Chinese, but I also need to complete my study guide for Science. I cannot do both, so I ask the people of Yahoo! Answers to help me study, by completing my study guide below.

Note, I am not cheating. This is for STUDYING, not copying for homework. It's pretty much the same as studying from a textbook.
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1)Review the math problem solving questions on the 鈥淲ebsite Links鈥?page for work, power, mechanical advantage, and efficiency.

2)Classes of Levers (See 鈥淲ebsite Links鈥?for Classes of Levers review) Draw a sketch that shows first, second, or third class lever system. Label the locations of the fulcrum, output force,and input force. For each type, give a real-life example. You may include drawings to aid your written descriptions.

3)Ramp Mechanical Advantage Lab Explain the relationship between the height of a ramp and the amount of input force needed to lift an object up the ramp. How does the height affect the mechanical advantage of the ramp? You will be given a graph to view, or data to construct a graph.

4)Ramp Mechanical Advantage Lab Calculate the ideal and real mechanical advantage of a ramp system (data and diagram will be provided). Explain why the two calculations are different.

5)See Saw Lab How does Effort Force affect the Effort Distance needed to balance a see saw lever? You will be given a graph to view, or data to construct a graph.

6)What is efficiency? What are some methods used to improve the efficiency of machines? Include 2 or 3 specific examples for this.

7)Pulley Lab You will be provided with one of the two bar graphs: Effort Force or Effort Distance. Based on the data provided, you will draw a sketch for the second graph, explaining how the values of effort force and effort distance are related to each other for each type of pulley.

8)Which has a greater effect on an object鈥檚 kinetic energy- doubling its mass or doubling its velocity? Explain your answer; you may use an example calculation.

9)Pendulum Lab Using the following terms to describe the motion of a pendulum: kinetic energy, potential energy, friction, law of conservation of energy. You may draw a sketch to aid your written description.

10) List 3 kitchen gadget devices and explain the type/s of simple machine/s used in each one.

Well, I'll do the simplest one... #8 is velocity, since to find KE you have to use 1/2(m)(v^2). The velocity is squared, so if you double it Ke will increase much more than it would if the mass had doubled instead.