Mission NL12 Newton's Third Law
Hold down the T key for 3 seconds to activate the audio accessibility mode, at which point you can click the K key to pause and resume audio. Useful for the Check Your Understanding and See Answers.
A bird is able to fly due to the marvels of Newton's third law. Identify the two letters corresponding to the action-reaction FORCE pairs which are responsible for the bird's flight.
For every action there is an equal and opposite reaction.
Action-reaction force pairs explain much of the locomotion in this world. In the case of a bird, there is the interaction between the bird's wings and the air. Like any interaction, it is a mutual interaction between two objects that results in equal forces on both objects directed in opposite directions.
To answer this question correctly, look for the pair of action-reaction interactions between bird wings and air. The action and reaction statements should involve these same two objects. And the interactions should be directed in opposite directions.
