Biology, 10.12.2020 16:40 Kencharlot
What causes a moving object to change its speed and/or direction of motion? What causes resting objects to begin moving? Both are due to (4) , which can be pushed or pulls on the objects. They can be hard to identify and understand. For example, a hand pushes on a box with force. This is called the (5) , because the force on the box causes the box to move. However, the box also applies a force on the hand. This is the (6) , and it is equal in size but opposite in direction. Together these two forces are called a (7) . These forces are essential to understanding (8) , which states, "for every action, there is an equal and opposite reaction." fill in the blanks
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