Outline :Outline Chapter 2 - Motion in 1D Displacement Velocity Acceleration 1D motion w/ constant acceleration Freely falling objects Chapter 3 - Vectors & 2D Motion Vectors Displacement, Velocity, and Acceleration in 2D Projectile motion Chapter 4 - The Laws of Motion Forces Newton’s First Law Newton’s Second Law Newton’s Third Law Applications of Newton’s Laws Chapter 5 - Energy Work Work-Energy Theorem Potential & Kinetic Energy Energy Conservation


Outline :Outline Chapter 6 - Momentum Impulse Impulse-Momentum Theorem Conservation of Momentum 1D Collisions Chapter 7 - Rotational Motion Rotational Kinematic Eqns. Centripetal Acceleration Newtonian Gravitation Chapter 8 - Rotational Dynamics Torque Mechanical Equilibrium Newton’s 2nd Law (Rotational) Chapter 9 - Fluids Density & pressure Variation of pressure w/ depth Pascal’s principle Archimedes’s principle Buoyant forces Equation of continuity Bernoulli’s equation


Q1 :Q1 A projectile is fired straight up from a car moving with constant horizontal velocity. Where will the projectile land? right back on the car slightly behind the car slightly ahead of the car far behind the car far ahead of the car Car


Q2 :Q2 A baseball is thrown vertically upward into the air. The acceleration of the ball at its highest point is: 9.8 m/s2 down 9.8 m/s2 up changing suddenly from positive to negative zero cannot be calculated without knowing the initial velocity


Q3 :Q3 The vectors a, b, and c are related through vector addition by c = a + b. Which diagram below illustrates this relationship? 1 2 3 4 None of these a a a a b b b b c c c c 1 2 3 4


Q4 :Q4 The diagram represents the straight line motion of a car. Which of the following statements is true? The car accelerates, stops, and reverses The car accelerates at 6 m/s2 for the first 2 s The car is moving for a total time of 12 s The car decelerates at 12 m/s2 for the last 4 s The car returns to its starting point when t = 9s v (m/s) t (s) 2 5 9 12 6


Q5 :Q5 A projectile is shot vertically upward with a given initial velocity. It reaches a maximum height of 100 m. If, on a second shot, the initial velocity is doubled then the projectile will reach a maximum height of: 70.7 m 141.4 m 200 m 241 m 400 m


Q6 :Q6 A bomber flying in level flight must release its bomb before it is over the target. Neglecting air resistance, which one of the following is NOT true? the bomber will be over the target when the bomb strikes g remains constant for the bomb the horizontal velocity of the plane equals the vertical velocity of the bomb when it hits the target the bomb travels in a curved path the time of flight of the bomb is independent of the horizontal speed of the plane


Q7 :Q7 A 1000 kg elevator is rising and its speed is increasing at 3 m/s2. The tension in the elevator cable is: 6800 N 1000 N 3000 N 9800 N 12,800 N


Q8 :Q8 A heavy wooden block is dragged by a force F along a rough steel plate, as shown below for two cases. The magnitude of the applied force F is the same for both cases. The normal force in (ii), as compared with the normal force in (i) is: the same greater less less for some angles of the incline and greater for others less or greater, depending on the magnitude of the applied force F i F F ii


Q9 :Q9 A fly ball to left field is caught at the same height as it was originally hit. Over its entire flight the work done by gravity and the work done by air resistance, respectively, are: 0; positive 0; negative positive; negative negative; positive negative; negative


Q10 :Q10 Two marbles, one twice as heavy as the other, are dropped to the ground from the roof of a building. Just before hitting the ground, the heavier marble has: As much kinetic energy as the lighter one. Twice as much kinetic energy as the lighter one. Half as much kinetic energy as the lighter one. Four times as much kinetic energy as the lighter one. Impossible to determine


Q11 :Q11 Suppose a ping-pong ball and a bowling ball are rolling toward you. Both have the same momentum, and you exert the same force to stop each. How do the time intervals to stop them compare? It takes less time to stop the ping-pong ball. Both take the same time. It takes more time to stop the ping-pong ball.


Q12 :Q12 Suppose rain falls vertically into an open cart rolling along a straight horizontal track with negligible friction. As a result of the accumulating water, the speed of the cart increases. does not change decreases.


Q13 :Q13 A 75-kg man is riding in a 30-kg cart at 2.0 m/s. He jumps off in such a way as to land on the ground with no horizontal velocity. The resulting change in speed of the cart is: Zero 2.0 m/s 3.0 m/s 4.0 m/s 5.0 m/s


Q14 :Q14 The approximate value of g (in m/s2) at an altitude above Earth’s surface equal to one Earth diameter is: 9.8 4.9 2.5 1.9 1.1


Q15 :Q15 The moon does not crash into the Earth because: The net force on it is zero It is beyond the pull of Earth’s gravity It is being pulled away by the sun and the other planets. Its acceleration toward the Earth is zero None of the above


Q16 :Q16 A ladybug sits at the outer edge of a turn table, and a gentlemanbug sits halfway between her and the axis of rotation. The turntable makes a complete revolution once each second. The gentlemanbug’s tangential speed is half the ladybug’s the same as the ladybug’s twice the ladybug’s impossible to determine


Q17 :Q17 A force with a given magnitude is to be applied to a wheel. The torque can be maximized by: applying the force near the axle, radially outward from the axle applying the force near the rim, radially outward from the axle applying the force near the axle, parallel to a tangent to the wheel applying the force at the rim, tangent to the rim applying the force at the rim, at 45 to the tangent


Q18 :Q18 The rotational inertia of a body tends to cause the body to: produce more torque rotate slower over time maintain its rotational motion change its angular momentum change its rotational kinetic energy


Q19 :Q19 Three identical point masses of mass M are fastened to a massless rod of length L as shown. The rotational inertia about one end of the rod of this array is: ML2/2 ML2 3ML2/2 5ML2/4 3ML2 L/2 L/2 m m m


Q20 :Q20 For a satellite in a highly elliptical orbit, after it passes the point of closest approach to the Earth (perigee) and before it reaches the point of farthest separation (apogee), its potential energy will be decreasing and its kinetic energy will be increasing potential energy will be increasing and its kinetic energy will be constant potential energy will be constant and its kinetic energy will be decreasing potential energy will be increasing and its kinetic energy will be decreasing potential energy and kinetic energy will both be constant


Q21 :Q21 Two identical blocks of ice float in water as shown. Then: Block A displaces a greater volume of water since the pressure acts on a smaller bottom area Block B displaces a greater volume of water since the pressure is less on its bottom The two blocks displace equal volumes of water since they have the same weight Block A displaces a greater volume of water since its submerged end is lower in water Block B displaces a greater volume of water since its submerge end has a greater area. A B


Q22 :Q22 A small steel ball floats in a half-full container of mercury. When water is added: The ball will float on the water The ball will sink slightly less in the mercury The mercury will float on the water The ball will sink to the bottom of the container The ball will lower slightly more into the mercury


Q23 :Q23 One piston in a hydraulic lift has an area that is twice the area of the other. When the pressure at the smaller piston is increased by P, the pressure at the larger piston: Increases by 2P Increases by P/2 Increases by P Increases by 4P Does not change


Q24 :Q24 Water flows through a constriction in a horizontal pipe. Bernoulli’s equation and the equation of continuity predict that the: Speed increases and the pressure decreases Speed increases and the pressure remains constant Speed increases and the pressure increases Speed decreases and the pressure increases Speed decreases and the pressure decreases