C3 Work, Force, Distance Videos

Video A. Inclined Planes make work easier. 

1. How many Newtons of force is it to lift the barrel onto the truck?
2. ______ is the ability to do work.
3. Work = _____ x _______
4. It would take ___Joules of work to lift the barrel onto the truck.
5. The ________ from the ground to the truck is 1 meter.
6. A machine helps us use our energy more efficiently. (True/False)
7. Give three examples of an inclined plane.

Video B. 

1. What do you do to make things move?

2. There are three things that can be done with a force, list them.

3. Describe friction in your own words using a picture with arrows and words.

4. True/False: It takes energy to do work.

Video C.

1. A force can move a __________ object or stop a ______ object.

2. Describe how using a force can change the shape of an object.  Draw a picture.

3. Work can be calculated using the formula: ____ = _____x________. 

4. True/False: Food gives us the chemical energy we need to do work. 

Video D.

1. Friction is a _____ that is created when ___ ________ move or try to move ______each other.

2. Compare/Contrast: What is the difference between the two surfaces, "more friction" and "less friction"?

3. Explain how friction helps us when riding a bike.

4. True/False: A wet floor is slippery because the liquid makes the barrier between the ground and your shoes increase friction.  

5. Project: Conduct the investigation at the end of the video.  What difference do you notice?  Why does this happen?

Video E.

1. What would a world without friction look like?  (5-7 sentence summary and draw your own funny picture of a world without friction!)

                                                                           Video F.
                                                                        The Lever