Competency #1
Explain motion using force diagrams and Newton's three laws of motion
Learning Objectives a, b, g and j.
- a. Describe characteristics of the following forces: gravity, air resistance,support, friction, applied
- b. Describe how the forces on the surface on the surface of the moon are different from those on the surface of the earth
- g. Assess the significance (relative size) of each force for a given scenario
- j. Apply Newton's three laws of motion to various scenarios
Question
Write down your answer to the following question:
When an astronaut drops a hammer and feather on the moon, both objects land on the surface of the moon at exactly the same time.
Which statement correctly describes the objects in the scenario above:
- A. The hammer and the feather must have the same weight
- B. The hammer and the feather must undergo the same acceleration.
- C. The hammer and the feather must have the same net force acting on them
- D. More than one of these must be true.
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