Energy, Machines, & Motion 6 th Science Kingston Middle School.

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Presentation transcript:

Energy, Machines, & Motion 6 th Science Kingston Middle School

EMM 1 Explain what you know about Energy and Forces? What are your past experiences with each?

EMM 2 On a separate piece of 3-hole line paper diagram and label how you build a battery. Explain in complete sentences how you know a battery works.

EMM 3 What is the evidence we have that proves energy is stored in a battery? Provide support for your answer with details from the experiment.

EMM 4 How does the charging time affect the stored energy in a rechargeable battery? What energy transformations take place?

EMM 5.1 What is force? Explain with examples gravitational and elastic forces.

EMM 5.2 How is weight similar to mass? How are they different? Provide support and examples for your explanation

EMM 6 What are the three factors that affect the force of friction as tested in our labs? Which factor has the greatest influence on friction and which has the least influence?

EMM 7 Explain how to connect an electric motor to achieve the highest possible force. Discuss the energy transformations through this system.

EMM 8 From a scientific perspective, what does more work, a ferry boat, or a dam? Explain your thinking with detail.

EMM 9 Explain who has more power, David moving 150 N-M of books in 10 Seconds, or Gillian moving 300 N-M of books in 4 Seconds? Why?

EMM 11 Why is an inclined plane considered a machine? Support your answer with an example of an inclined plane and explain why it is a machine.

EMM 12 Explain the difference between a single pulley and fixed/moveable pulley configuration. How does each affect the amount of work needed? What happens to the effort force compared to the effort distance when lifting the load the entire load distance for different pulley configurations?

EMM 13 Provide an example of each of the three types of levers. Explain your thinking with words, diagrams, and labels.

EMM 14 What is the difference between ideal and actual mechanical advantage? How are each calculated?

EMM 15 What is machine efficiency? Considering modern science and technology, could we achieve 100% efficiency in a machine?

EMM 17 Describe the energy transformations involved in using the electric motor to lift the sled with 14 washers from lesson 16.

EMM 18 Compare and contrast motion and speed. What scientific tools are required to measure each?

EMM 19 How does the size and duration of a force effect the motion of an object? Provide an example of your thinking.

EMM 20 Compare and contrast the energy transformations of the fan car, mousetrap car, and roller coaster car.