Newton's 2nd Law Practice
Newton's 2nd Law Have you ever watched what happens to a pile of leaves on a windy day? A light breeze might gently scatter the leaves across the lawn, but a huge gust of wind would send the leaves whirling through the air. If the wind got stronger, the leaves would soar through the air even faster-and your bike might even tip over too!Remember, Newton's First Law tells us that an object will stay at rest or in motion unless a force changes it. In his second law, he explains how unbalanced forces cause objects to accelerate, or move faster.Newton's Second Law says that an object's acceleration depends on two things: force and mass. As the force exerted on an object increases, the acceleration will increase. That's why when the gently breeze turns into a strong gust, the leaves move faster and farther. As the force of the wind increases, the acceleration of the moving leaves increases too.The relationship between acceleration and mass if just the opposite. The more mass something has, the less it will accelerate. Leaves are light and have very little mass, so they will accelerate quickly. You bicycle, on the other hand, has much more mass than the leaves. The same gust of wind that blew the leaves into your neighbor's yard might have scooted your parked bike only a few inches.Answer the questions below using what you learned from the reading. _ forces cause an object to accelerate, or move faster. balanced unbalanced equal Acceleration depends on two things: force and _? mass acceleration motion inertia As force increases, the _ increases too. motion mass acceleration net force The _ mass something has, the _ it will accelerate. more, less more, more If you kick a bowling ball (ouch!) and a tennis ball with the same amount of force, according to Newton's Second Law of Motion, what will happen? The bowling ball will travel farther than the bowling ball The bowling ball will travel faster, but cover a shorter distance The tennis ball will travel farther than the bowling ball The balls will travel the same distance Use your notes or vocab to match the term to the correct defintion. force a push or pull; a change in an object's motion mass how much matter makes up an object acceleration an increase in an object's velocity Newton's 2nd Law states that "The greater the _ of an object, the more _ it will take to _ the object." mass, force, accelerate force, mass, accelerate acceleration, mass, force force, acceleration, mass What is the equation for Newton's 2nd Law? m= F*a a = F*m F = m*a In order to get more acceleration, you need to apply higher _. force mass weight motion Label the image below acceleration, force, mass force mass acceleration Force equals mass times acceleration.F = maForces can be balanced or unbalancedForce is directly proportional to mass and acceleration.Acceleration is INVERSELY related to the mass of the objectNewtons (N) = mass (kg) x acceleration (m