Physical Science chapter 12
Quiz by Melissa Knox
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21 questions
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- Q1The law that states that every object maintains constant velocity unless acted on by an unbalanced forces isNewton's second law of motionNewton's third law of motionNewton's first law of motionthe law of conservation of momentum30s
- Q2The law that states for every action force there is an equal and opposite reaction force isNewton's first law of motionthe law of conservation of momentumNewton's third law of motionNewton's second law of motion30s
- Q3The law that states that the unbalanced force acting on an object equals the object's mass times its acceleration isNewton's third law of motionNewton's second law of motionthe law of conservation of momentumNewton's first law of motion30s
- Q4Which of the following equations is correct?w=g/mw=mgw=m/gw=g + m30s
- Q5What is the unbalanced force that slows down a ball rolling across the floor?the force of gravitiythe force of inertiathe force of frictionthe force of momentum30s
- Q6If two objects with different masses and traveling with different velocities collide, what law allows you to predict the motion of the objects after the collision?the law of conservation of momentumNewton's second lawthe law of universal gravationNewton's third law30s
- Q7Which object has the greatest inertia?a bowling balla volleyballa tennis balla beach ball30s
- Q8A seat belts helps you when your car stops suddenly by providing a(n)unbalanced forward forcebalanced forward forcebalanced backward forceunbalanced backward force30s
- Q9What unbalanced force is needed to give a 976 kg vehicle an acceleration of 2.50 m/s2?390 N2440 lbs2440 N390 lbs30s
- Q10If an equal force is applied to two cars of equal mass, Car A and Car B, Car A will have _____ acceleration as (than ) Car B.the oppositegreaterthe sameless30s
- Q11Which of the following objects exerts a gravitational force?a bowling ballall of thesea feathera book30s
- Q12When an object is in free fall, the only force acting on it isterminal velocityfrictioninertiagravity30s
- Q13orbital motion is a combination ofacceleration and gravityforward motion and free fallmass and frictionweight and vertical velocity30s
- Q14Astronauts "float" when inside an orbiting spaceship because they areoutside Earth's gravityweightlessin a vacuumin free fall30s
- Q15The force exerted on the racket by a hit tennis ball is thegravitational forceaccelerationreaction forceaction force30s