Which statement best summarizes the central idea of “Applications of Newton’s Laws”?
Which examples did you discuss in your response? Check all that apply.
Describe the real-world examples of Newton's third law that were identified in “Applications of Newton's Laws.”
Newton's third law states that for every action, there is an equal and opposite reaction. Real-world examples include a rocket engine, where the downward push of escaping gases creates an upward thrust on the rocket. Another example is the formation of mountains, where tectonic plates collide and push against each other, forcing the Earth's crust upward.
You should always wear your seatbelt just in case the car comes to an abrupt stop. The seatbelt will hold you in place so that your body does not continue moving when the car stops. What property of matter will keep your body in motion when the car comes to a halt? Which of Newton's three laws does this example most closely represent?
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Thalia is drafting a plan to move a large, perfect sphere concrete sculpture that is in front of her office building. Describe the considerations Thalia would need to make if she was drafting a plan to move the sculpture.
Thalia must consider Newton's three laws of motion. First, the sculpture has inertia, so a significant unbalanced force is needed to overcome its tendency to remain at rest (First Law). Second, the amount of force required depends on the sculpture's mass and the desired acceleration, calculated using F=ma (Second Law). Third, whatever force she applies to the sculpture, the sculpture will exert an equal and opposite force back on the mover or moving equipment (Third Law).
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