<p>Name______Objective 5 – Motion, Forces, and Energy D Gravity pulls the rocket exhaust down while 1. What is the net force exerted on a 90.0 kg friction pushes up against the atmosphere. race-car driver while the race car is accelerating from 0 to 44.7 m/s in 4.50 s? 6. Which lever arrangement requires the least F 9.8 N effort force to raise a 500 N resistance? G 20 N H 201 N F H J 894 N</p><p>2. A 1-kilogram ball has a kinetic energy of 50 joules. The velocity of the ball is – G J F 5 m/s G 10 m/s H 25 m/s J 50 m/s 7. Which illustration best demonstrates compression waves? 3. Which bike rider has the greatest momentum? A C A A 40 kg person riding at 45 km/h B A 50 kg person riding at 35 km/h C A 60 kg person riding at 25 km/h D A 70 kg person riding at 15 km/h B D </p><p>4. A mechanic used a hydraulic lift to raise a 12,054 N car 1.89 m above the floor of a garage. It 8. A guitar player is seated next to a piano. The took 4.75 s to raise the car. What was the power piano player strikes an E key on the piano. The output of the lift? guitarist reports that this causes the E string on his guitar to vibrate. What is the name of this A 489 W phenomenon? B 1815 W C 4796 W A Polarization D 30,294 W B Resonance C Reflection D Diffraction 5. Which of these is the best description of the action-reaction pair when the space shuttle lifts off from the launchpad?</p><p>A The ground pushes the rocket up while exhaust gases push down on the ground. 9. Which of the following is an example of solar B Exhaust gases push down on air while the air energy being converted into chemical energy? pushes up on the rocket. C The rocket pushes exhaust gases down while F Plants producing sugar during the day the exhaust gases push the rocket up. G Water evaporating and condensing in the water cycle Name______H The sun unevenly heating Earth’s surface J Lava erupting from volcanoes for many days 11. Heat convection occurs in gases and liquids. Heat convection does not occur in solids because solids are unable to</p><p>A absorb heat by vibrating B transfer heat by fluid motion C emit radiation by reflecting light D exchange heat by direct contact</p><p>12. A man who was sleeping wakes up because he hears the smoke alarm go off in his house. Before 10. What is the approximate difference in opening the bedroom door, the man feels the door gravitational potential energy of the two shaded to see whether it is warm. He is assuming that boxes? heat would be transferred through the door by –</p><p>F 19 J A conduction G 39 J B convection H 59 J C radiation J 79 J D compression</p><p>10th Grade Only G J </p><p>11th Grade Only</p><p>13. In West Texas and Southern California, high winds drive turbines that generate electricity. One advantage that wind energy has over energy 13. How much current is flowing through this generated from solar cells is that wind energy circuit? A can be generated at night A 0.32 A B is plentiful everywhere B 3.1 A C produces cleaner energy C 4.0 A D is free of environmental hazards D 12.5 A</p><p>14. Which circuit is built so that if one light bulb goes out, the other three light bulbs will continue to glow? 14. Battery-powered cars produce less air pollution than gasoline-powered cars. However, one F H environmental concern of using battery-powered cars is that batteries</p><p>F are heavier than gasoline engines Name______G waste more energy than gasoline engines J produce direct current rather than alternating H contain toxic substances that are difficult to current dispose of</p>