Example Items. Physics

Transcription

1 Example Items Physics Physics Example Items are a representative set of items for the P. Teachers may use this set of items along with the test blueprint as guides to prepare students for the P. On the last page, the correct answer, content SE and SE justification are listed for each item. The specific part of an SE that an Example Item measures is NOT necessarily the only part of the SE that is assessed on the P. None of these Example Items will appear on the P. Teachers may provide feedback regarding Example Items. (1) ownload the Example Feedback Form and it. The form is located on the homepage of ssessment.dallasisd.org. OR () To submit directly, click Example Feedback after you login to the ssessment website. First Semester ode #: 3111

2 STRTM State of Texas ssessments of cademic Readiness d v = Δ avg Δt Δd = vδt + 1 aδt ( )( ) ( ) i a c v = t r ( ) ( ) )) (( )( ( ) ( ) ( ( )( ) ) ( )

3 STRTM State of Texas ssessments of cademic Readiness 1 (mass)(velocity) KE = 1 mv ( ) 1 ( )( ) PE = 1 kx elastic ( )( )

4 STRTM State of Texas ssessments of cademic Readiness c = speed of light = m s 8 9 k N oulomb s constant m c 4 m = mass of Earth = kg E 6 r = radius of Earth = m E

5 STRTM State of Texas ssessments of cademic Readiness H Hydrogen 3 4 Li e Lithium eryllium 11 1 Na Mg Sodium Magnesium 19 0 K a Sc Ti V tomic number Symbol tomic mass r Mn 14 Si Silicon Potassium alcium Scandium Titanium Vanadium hromium Manganese Iron obalt Rb Sr Y Zr Nb Mo Tc Ru (98) Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium s a Lu Hf Ta W Re Os esium arium Lutetium Hafnium Tantalum Tungsten Rhenium Osmium Iridium Fr Ra Lr Rf b Sg h Hs Mt (3) (6) (6) (67) (68) (71) (7) (70) (76) Lawrencium Francium Radium Rutherfordium ubnium Seaborgium ohrium Hassium Meitnerium Fe o Rh Ir Name Ni Pd Pt 9 u g u 1 30 Zn d Hg 13 3 Ga Tl 14 4 Ge Pb 15 5 s 16 6 In Sn Sb Te I i Se Po 17 7 r t 18 8 He Helium N O F Ne oron arbon Nitrogen Oxygen Fluorine Neon l Si P S l r luminum Silicon Phosphorus Sulfur hlorine rgon Nickel opper Zinc Gallium Germanium rsenic Selenium romine Krypton Palladium Silver admium Indium Tin ntimony Tellurium Iodine Xenon (09) (10) () Platinum Gold Mercury Thallium Lead ismuth Polonium statine Radon 110 s 111 Rg (81) (80) armstadtium Roentgenium Mass numbers in parentheses are those of the most stable or most common isotope. Kr Xe Rn Lanthanide Series ctinide Series 57 La Lanthanum 89 c (7) ctinium 58 e erium 90 Th Thorium 59 Pr Praseodymium 91 Pa Protactinium 60 Nd Neodymium 9 U Uranium 61 Pm (145) Promethium 93 Np (37) Neptunium 6 Sm Samarium 94 Pu (44) Plutonium 63 Eu Europium 95 m (43) mericium 64 Gd Gadolinium 96 m (47) urium 65 Tb Terbium 97 k (47) erkelium 66 y ysprosium 98 f (51) alifornium 67 Ho Holmium 99 Es (5) Einsteinium 68 Er Erbium 100 Fm (57) Fermium 69 Tm Thulium 101 Md (58) Mendelevium 70 Yb Ytterbium 10 No (59) Nobelium Updated Spring 011

6 allas IS - Example Items EXMPLE ITEMS Physics, Sem 1 1 The figure represents a ball that starts from rest at point, rolls down to ground level (point ), and then up to point G. Which statement best describes the energy transformation of the ball as it goes from point to point G? Kinetic energy is converted into potential energy. Potential energy is converted into kinetic energy. oth the kinetic energy and potential energy remain constant. There is not enough information in the diagram. car moves at a constant speed in a clockwise direction around a circular path of radius r, as shown in the diagram. North West car East r South What is the direction of the acceleration when the car is in the position shown in the diagram? East West North South

7 allas IS - Example Items EXMPLE ITEMS Physics, Sem 1 3 The table shows the mass, velocity and height of four different objects. Object Mass (kg) Velocity (m/s) Height (m) Which object has the most mechanical energy? Object Object Object Object 4 block with a mass of 5.0 kg is pushed on a frictionless surface by applying a horizontal force of 80.0 N. The block starts from rest, and its final velocity is 1.6 m/s. pplied Force = 80.0 N m = 5.0 kg How much work is done on the block? 3 J 397 J 800 J 99 J 5 John sees Hua running towards him at 11 m/s. While running, Hua throws a ball to John at 5 m/s. What is the speed of the ball as observed by John? 5 m/s 6 m/s 16 m/s 55 m/s

8 allas IS - Example Items EXMPLE ITEMS Physics, Sem 1 6 Two objects with masses m and m are separated by a distance, d, and exert a force, F, on each other. What new force will exist between these objects if d is doubled as shown in the diagram? F/ F/4 F 4F 7 If the mass of a balloon is 300 kg and the lift force provided by the atmosphere is 3300 N, what is the net force on the balloon? Upward, 360 N ownward, 300 N Toward the north, 300 N Toward the east, 360 N 8 mass of 5 kg slides across a frictionless table with an initial velocity of 10 m/s. The wind starts to blow in the direction the mass is moving causing it to accelerate at a constant rate. fter seconds, the mass is moving at a velocity of 15 m/s. What is the acceleration of the mass? 1.5 m/s 7.5 m/s 5.0 m/s.5 m/s

9 allas IS - Example Items EXMPLE ITEMS Physics, Sem 1 9 n object moves in a straight line at a constant velocity of 1 m/s as shown in the velocitytime graph. What position-time graph is represented by the motion indicated in the velocity-time graph?

10 allas IS - Example Items EXMPLE ITEMS Physics, Sem 1 10 force of 4.0 N was used to push an object weighing 9.5 N along a flat frictionless horizontal surface. What is the magnitude of the acceleration achieved by the object? 0.8 m/s 1. m/s 5.5 m/s 8.0 m/s 11 rollercoaster cart is launched into a loop by a compressed spring that stores 10,000 Joules of energy. Source: stickpng.com If the starting position is considered zero height (h=0) and there is no friction or air resistance, which pair of numbers describes possible values for the kinetic energy, KE, and the gravitational potential energy, PE, at point P? KE = 0 Joules PE = 11,000 Joules KE= 9,000 Joules PE= 3,000 Joules KE = 3,000 Joules PE = 7,000 Joules KE = 7,000 Joules PE = 1,000 Joules

11 EXMPLE ITEMS Physics Key, Sem 1 Item# Key SE Process Skills SE Justification 1 P.6 H Investigate examples of kinetic and potential energy and their transformations. P.4 H escribe accelerated motion in two dimensions including circular examples. 3 P.6 H, J alculate the mechanical energy of a physical system. 4 P.6 G, H, J alculate quantities using the work-energy theorem. 5 P.4 G, J escribe motion relative to different frames of reference. 6 P.5 H escribe how the magnitude of the gravitational force between two objects depends on the distance between their centers. 7 P.4 G, J alculate the effect of forces on objects. 8 P.4 G, J nalyze motion in one dimension using equations with the concepts of displacement, instantaneous velocity, and acceleration. 9 P.4 G, H, J Interpret graphs describing different types of motion. 10 P.4 G, J alculate the effect of forces on objects, including the relationship between force and acceleration. 11 P.6 G, J pply the law of conservation of energy.