Duration: 60 minutes
Notes / Activity
Activity:
Effects of forces challenges
PS2.A: Each force acts on one particular object and has both strength and a direction. An object at rest typically has multiple forces acting on it, but they add to give zero net force on the object. Forces that do not sum to zero can cause changes in the object’s speed or direction of motion. (Boundary: Qualitative and conceptual, but not quantitative addition of forces are used at this level.)
By the end of this lesson, the student should able to:
Prepare the following materials before the lesson:
E.g. Design a tool to move the animals around the farm without falling off.
For example, students show that they are pushing the animals with the tool, teachers will ask “Is this a push or pull?”
How is your model/design effective in moving the animals around the farm?
How is this model better than the other model?
What do you think are some forces acting on the tool when you are moving it?
What are some forces we experience in our daily lives? (Gravitational force, Frictional force)