#### Transcript Midterm Review PPT

Jeopardy! Choose Category & Amount Motion Forces Newton’s Laws Work & Power Energy Waves 200 200 200 200 200 200 400 400 400 400 400 400 600 600 600 600 600 600 800 800 800 800 800 800 1000 1000 1000 1000 1000 1000 Final Jeopardy A 2500. kg rollercoaster train is at the top of a 62.0 meter hill. It goes down the hill. Ignoring any energy loss, what will be the speed of the rollercoaster train at the bottom of the hill? Back Answer Answers Motion Forces Newton’s Laws Work & Power Energy Waves 5.10 m/s It will triple Newton’s 2nd Law Force applied over a distance 3150 Joules 13,600 Hz 1.6 m/s2 150 Newtons Newton’s 1st Law The rate of doing work 357 Joules 9.78 meters Slowing down Acceleration Inertia 70 Joules Elastic Potential Energy 5.0 meters 3.67 hr or (3 hr 40 min) 0.25 kg Newton’s 3rd Law Zero – no distance moved It increases 354 Hz Acceleration 33.3 N Newton’s 3rd Law 5 Watts (or J/s) Gravitational Potential Energy 4.0 meters Motion 200 A distance runner covers 5000. m in a time of 980. seconds. What was his average speed? Back Answer Motion 400 A runner can go from 6.0 m/s to 14 m/s in 5.0 seconds. What is the runner’s acceleration? Back Answer Motion 600 What does it mean when a negative acceleration is reported? Back Answer Motion 800 How long does it take an object to travel 220 kilometers at 60.0 km/hr? Back Answer Motion 1000 In a distance vs. time graph, what does a curved line always indicate? Back Answer Forces 200 If you were pushing a cart and suddenly tripled the amount of force that you are using, what will happen to the acceleration of the cart will? Back Answer Forces 400 What is the weight of a 15 kg dumbbell on Earth? Back Answer Forces 600 A constant net force acting on an object causes the object to move with constant _____________. Back Answer Forces 800 A pitcher accelerates a ball at 80.0 m/s2 by exerting a force of 20.0 N. What is the mass of the ball? Back Answer Forces 1000 A 6.8 kg bowling ball is rolled with an acceleration of 4.9 m/s2. What was the force applied? Back Answer Newton’s Laws 200 The acceleration of an object is directly proportional to the force applied to it. This is part of which law? Back Answer Newton’s Laws 400 An object at rest stays at rest unless acted upon by an outside force. This is part of which law? Back Answer Newton’s Laws 600 A measure of an object’s resistance to changes in motion is known as this. Back Answer Newton’s Laws 800 When running, the ground pushes back on the runner with the same force that the runner applies to the ground. This is an example of which law? Back Answer Newton’s Laws 1000 “Forces always occur in pairs” and “for every action there is an equal and opposite reaction” are statements related to which law? Back Answer Work & Power 200 In order for work to occur, these two things must happen. Back Answer Work & Power 400 Power is… Back Answer Work & Power 600 If you push with 50.0 N of force and lift a box 1.4 meters, how much work do you do? Back Answer Work & Power 800 How much work is done to hold a 50 N box 1.4 meters off the ground? Back Answer Work & Power 1000 How much power is required to lift a 50N chair 0.3 m in 3 seconds? Back Answer Energy 200 What is the approximate GPE of a 42 kg box that is 7.5 m above the ground? Back Answer Energy 400 What is the approximate KE of a 1.35 kg discus thrown with a speed of 23.0 m/s? Back Answer Energy 600 The energy associated with the bending or deformation of material is ________. Back Answer Energy 800 What specifically happens to the kinetic energy of an object as it falls to the ground? Back Answer Energy 1000 A roller coaster car is at the top of the first hill just about to drop. What type of energy is most closely associated with this situation? Back Answer Waves 200 Sound travels at a speed of 340 m/s. What frequency would correspond to a sound wave with a wavelength of 0.025 m? Back Answer Waves 400 In steel, a sound wave travels at a speed of 5000. m/s. What would be the wavelength of a sound produced that came from a 512 Hz tuning fork that was touched to the steel? Back Answer Waves 600 A wave that moves perpendicular to the disturbance that creates it is this type of wave. Back Answer Waves 800 The amount of energy that a wave carries is closely related to this part of a wave. Back Answer Waves 1000 What general category of waves need a medium in which to travel? Back Answer Motion 200 Answer 5.10 m/s Back to Board Motion 400 Answer 1.6 m/s2 Back to Board Motion 600 Answer Slowing down (in the positive direction) or speeding up (in the negative direction) Back to Board Motion 800 Answer 3.7 hr Back to Board Motion 1000 Answer Acceleration Back to Board Forces 200 Answer It will triple Back to Board Forces 400 Answer 150 Newtons Back to Board Forces 600 Answer Acceleration Back to Board Forces 800 Answer 0.250 kg Back to Board Forces 1000 Answer 33 N Back to Board Newton’s Laws 200 Answer Newton’s 2nd Law Back to Board Newton’s Laws 400 Answer Newton’s 1st Law Back to Board Newton’s Laws 600 Answer Inertia Back to Board Newton’s Laws 800 Answer Newton’s 3rd Law Back to Board Newton’s Laws 1000 Answer Newton’s 3rd Law Back to Board Work & Power 200 Answer Force applied over a distance Back to Board Work & Power 400 Answer The rate of doing work Back to Board Work & Power 600 Answer 70. Joules Back to Board Work & Power 800 Answer Zero – no distance moved Back to Board Work & Power 1000 Answer 5 Watts Back to Board Energy 200 Answer 3200 Joules Back to Board Energy 400 Answer 357 Joules Back to Board Energy 600 Answer Elastic Potential Energy Back to Board Energy 800 Answer It increases Back to Board Energy 1000 Answer Gravitational Potential Energy Back to Board Waves 200 Answer 14,000 Hz Back to Board Waves 400 Answer 9.78 meters Back to Board Waves 600 Answer transverse Back to Board Waves 800 Answer amplitude Back to Board Waves 1000 Answer mechanical Back to Board Final Jeopardy Answer 35.2 m/s Back to Board