Newton's Third Law Quiz

The net force acting on the nail from the motion of the hammer drives the nail into the wood.

The hammer experiences a downward force from the arm and an upward force from the nail, while the nail experiences a net force from the motion of the hammer.

According to the third law of motion, the gravitational force from the Earth causes the rock to accelerate towards the Earth, while the Earth also accelerates towards the rock.

<p>The acceleration of each object is inversely proportional to its mass. The rock, being light, accelerates quickly, while the Earth, being heavy, has a negligible acceleration.</p> Signup and view all the answers

<p>The three concepts discussed are the law of inertia, F = ma (force equals mass times acceleration), and action/reaction.</p> Signup and view all the answers

<p>Newton's third law of motion states that for every action there is an equal and opposite reaction.</p> Signup and view all the answers

<p>Action and reaction forces are equal in magnitude and opposite in direction. When two objects interact, they exert forces on each other that are of the same size but in opposite directions.</p> Signup and view all the answers

<p>An example of Newton's third law of motion is when a car hits a brick wall. The car exerts an action force on the wall, and the wall exerts an equal and opposite reaction force on the car, causing it to come to a stop.</p> Signup and view all the answers

<p>It is important to understand that forces always exist in pairs because any force is an interaction between two objects. When assessing the motion of an object, we need to consider the forces acting upon that object and not the forces it applies on other objects.</p> Signup and view all the answers

<p>Newton's third law of motion implies that there can never be a single isolated force, as any force is an interaction between two objects. This means that any force accelerating an object must be paired with another force in the opposite direction.</p> Signup and view all the answers