A 0.5 kg (Honeycrisp) apple is hanging in an orcharde 10 meters above the ground. How much potential energy does the apple have? 0.5 Joules 49 Joules 10 Joules 0 Joules 5 Joules Question 11 (1 point) ) Listen A 0.5 kg water balloon is dropped from a balcony 40 meters from the ground. What is the balloon's velocity just as it hits the ground? (Ignoring air resistance) 28 m/s 392 m/s 784 m/s 8 m/s 20 m/s Question 12 (1 point) Listen If the giant drop has a total potential energy of 100,000 Joules when its at rest on top (40 meters high), what would its potential energy be once it has fallen and is 10 meters off the groundIf a force of 15 N is used to drag a sled along the incline for a distance of 0.5 meters. then how much work is done on the loaded cart? 55 Joules 7.5 Joules 30 Joules 147 Joules 3.5 Joules Question 14 {1 point} all ' l llI '\\ \\1 .0 -------- a: 300 D C .r (1" At point A. the object's Potential Energy (PE) = 4 Joules and Kinetic Energy (KE) = CI Joules. At point B, the object's PE = 2.6 Joules. What is the object's KE at point B? 1.4 Joules 6.6 Joules O Joules f"). 4 Joules Determine the kinetic energy of a (SOD-kg roller coaster car that is moving with a speed of 10 m/s. 6,000 Joules 60,000 Joules 3,000 Joules 30,000 Joules (":3 0 Joules Question 16 {1 point} all Will N. Andable and Ben Pumpiniron are carrying similar boxes up the stairs. Will carries the box up in half the time that Ben does. Which of the following is true? (":3 Ben and Will utilize the same work and power Will utilizes twice as much power as Ben if"). Will does twice as much work as Ben if"). Ben does twice as much work as Will Ben utilizes twice as much power as Will \\___/ .r' II K: you-Q55 ---------- on C If the diagram represents a child swinging on a swing set. at which location would the child experience the greatest kinetic energy? Question 18 {1 point} all An engineer is designing a state of the art rollercoaster, and uses the conservation of energy to calculate the velocity at the bottom the first drop on the rollercoaster. Her calculations for the velocity at the bottom of the drop predict a velocity of 20 mfs. Which of the following statements is true? The velocity will be less than 20 me clue to some of the energy being lost to / friction, sound, and vibrations of the coaster and track. The velocity will be exactly 20 m/s because there are no other factors that can affect the energy transferring potential energy to kinetic energy. The velocity will be greater than 20 mfs due to the increased force and weight as the coaster moves down the incline. Egg "A" is thrown at a brick wall and splatters. Egg "B" is thrown at a hanging bed sheet and comes to a rest in tact (without breaking). Which of the following statements is true. 5:} Egg I'A\" experiences a greater force clue to decreased time of impact Egg "B" experiences a great impulse than Egg "A'L Egg "A" experiences a greater impulse than Egg "'13 Cl Egg "B" experiences a greater force due to an increased time of impact 0 Egg \"A" experiences a greater impulse and force than Egg "B". Question 20 {1 point} 35 I11) Listen : It you double the velocity of an object. what happens to its kinetic energy? {#:1- It remains the same It doubles It is 4 times greater \\___/ It is half as much \\_