Physics-Principles-With-Applications-7th-Edition-Giancoli-Test-Bank questions with correct answers

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Consider a deer that runs from point A to point B. The distance the deer runs can be greater than the magnitude of its displacement, but the magnitude of the displacement can never be greater than the distance it runs. A) True B) False 2) Which of the following quantities has units of a displacement? (There could be more than one correct choice.) A) 32 ft/s2 vertically downward B) 9.8 m/s2 C) 40 km southwest D) 186,000 mi E) -120 m/s 3) Suppose that an object travels from one point in space to another. Make a comparison between the magnitude of the displacement and the distance traveled by this object. A) The displacement is either greater than or equal to the distance traveled. B) The displacement is always equal to the distance traveled. C) The displacement can be either greater than, smaller than, or equal to the distance traveled. D) The displacement is either less than or equal to the distance traveled. 4) Consider a car that travels between points A and B. The car's average speed can be greater than the magnitude of its average velocity, but the magnitude of its average velocity can never be greater than its average speed. A) True B) False 5) Which of the following quantities has units of a velocity? (There could be more than one correct choice.) A) 40 km southwest B) 9.8 m/s downward C) 9.8 m/s2 downward D) 186,000 mi E) -120 m/s 1) 2) 3) 4) 5) 6) When is the average velocity of an object equal to the instantaneous velocity? 6) A) when the velocity is constant B) only when the velocity is increasing at a constant rate C) never D) only when the velocity is decreasing at a constant rate E) always 7) You drive 6.0 km at 50 km/h and then another 6.0 km at 90 km/h. Your average speed over the 12 km drive will be A) greater than 70 km/h. B) less than 70 km/h. C) equal to 70 km/h. D) exactly 38 km/h. E) It cannot be determined from the information given because we must also know directions 7) traveled. 8) If the velocity of an object is zero at some point, then its acceleration must also be zero at that po int. Fu8l)l file at https://MyT A) True B) False 9) Which of the following situations is impossible? 9) A) An object has velocity directed east and acceleration directed east. B) An object has zero velocity but non-zero acceleration. C) An object has velocity directed east and acceleration directed west. D) An object has constant non-zero velocity and changing acceleration. E) An object has constant non-zero acceleration and changing velocity. 10) If the acceleration of an object is zero, then that object cannot be moving. 10) A) True B) False 11) If the velocity of an object is zero, then that object cannot be accelerating. 11) A) True B) False 12) Suppose that a car traveling to the west begins to slow down as it approaches a traffic light. Which of the following statements about its acceleration is correct? A) The acceleration is toward the west. B) The acceleration is toward the east. C) The acceleration is zero. D) Since the car is slowing down, its acceleration must be negative. 13) An auto manufacturer advertises that their car can go "from zero to sixty in eight seconds." This is a description of what characteristic of the car's motion? A) instantaneous speed B) average speed C) instantaneous acceleration D) average acceleration E) displacement 14) An object moving in the +x direction experiences an acceleration of +2.0 m/s2. This means the object A) is increasing its velocity by 2.0 m/s every second. B) travels 2.0 m in every second. C) is traveling at 2.0 m/s. D) is decreasing its velocity by 2.0 m/s every second. .............................................................continued...............................................