Energy, Machines, & Motion

Energy, Machines, & Motion

6th Science

Kingston Middle School

EMM 1Explain what you know about Energy and

Forces? What are your past experiences with each?

EMM 2On 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 3What is the evidence we have that proves

energy is stored in a battery? Provide support for your answer with details from the experiment.

EMM 4How does the charging time affect the

stored energy in a rechargeable battery? What energy transformations take place?

EMM 5.1What is force? Explain with examples

gravitational and elastic forces.

EMM 5.2How is weight similar to mass? How are

they different? Provide support and examples for your explanation

EMM 6What 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 7Explain how to connect an electric motor to

achieve the highest possible force. Discuss the energy transformations through this system.

EMM 8From a scientific perspective, what does

more work, a ferry boat, or a dam? Explain your thinking with detail.

EMM 9Explain 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 11Why 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 12Explain 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 13Provide an example of each of the three

types of levers. Explain your thinking with words, diagrams, and labels.

EMM 14What is the difference between ideal and

actual mechanical advantage? How are each calculated?

EMM 15What is machine efficiency? Considering

modern science and technology, could we achieve 100% efficiency in a machine?

EMM 17Describe the energy transformations

involved in using the electric motor to lift the sled with 14 washers from lesson 16.

EMM 18Compare and contrast motion and speed.

What scientific tools are required to measure each?

EMM 19How does the size and duration of a force

effect the motion of an object? Provide an example of your thinking.

EMM 20Compare and contrast the energy

transformations of the fan car, mousetrap car, and roller coaster car.