2013 e.c The 1st semester Gomora`s Grade 8th Physics Final Exam I Say true if the statement is correct and false if the statement is incorrect 1 Volume is the basic physical quantity 2 Liquids have a definite shape 3 1L is equal to 1000000 ml 4 The scientific rotation of 3X10⁶ is 3000000 5 Velocity is the vector physical quantity II Choose the best answer from the given alternative 1 Which one of the following is different from the other? A Mass B Length C Time D Speed 2 The SI unit of force is---------------- A kg m/s² B m/s² C m/s D kg 3 How many days are there in 2 weeks? A 7days B 14 days C 24 days D 2 days 4 Which one of the following is contact force? A Electrical force B Magnetic force C Frictional force D All 5 The dimensional expression of speed is ------------ A [L²] B [L³] C [ML¯³ ] D [LT¯¹] III Match A with B A B -----1 Derived quantity A) [M] -----2 The SI unit of Pressure B) Pa -----3 Dimensional of mass C) Velocity IV Work out problems 1 A car moved 2.4 km due east for 120second. What is its average velocity? 2 Calculate the pressure exerted at appoint while anal tip of area 0.1cm² is hammered in to a wooden block with a force of 20N
