Tiêu đề مكمل.pdf ✅

1)The reading of the micrometer shown in mm is: a)2.15 b)2.25 c)2.50 d)2.75 2)the reading of the following vernier in mm is: a)27.0 b)27.9 c)22.9 d)32.9 3)the reading of the following micrometer: a)11.69mm b)11.19mm c)10.69mm d)10.19mm 4)The potential energy a vibrational spring-mass system when the spring at maximum displacement: a) minimum b) maximum c) zero d) constant 5)In Newton’s 2nd law, consider the net force constant, then the acceleration of the system: a) will increase as total mass increases. b) will remain constant as a total mass decrease. c) will decrease as a total mass increase. d) will remain constant as total mass increases 6) a student wants to calculate the volume of cylinders. He used a vernier caliper to measure the diameter which is d= (6.0±0.05) mm, and the height which is h=20.0mm then the volume of this cylinder in mm3 is: a)565.5mm3±9.43 b)1884.9mm3±18.5 c) 565.5mm3±18.5 d) 2260mm3±9.43
7)in the projectile motion experiment, if the initial velocity of the projectile is 160cm/s, what is the value of the height h? (g=9.8m/s2 ) a)18cm b)11cm c)15cm d)25cm **D هي نفسها x 8) a mass of 120g suspended from a vertical spring assume the energy of a system conserved, find spring ) 2 constant (k) where the elongation is 7.5 cm (g=10m/s 2 b)2000 kg/s 2 a)32kg/s 2 d)24.5 kg/s 2 c)3000 kg/s 9)A student graph the relationship between height and range (y&d) in projectile motion experiment as shown, what is the value of the initial velocity of the projectile? g=9.8 a)1.5cm/s b)148.5cm/s c)177.4cm/s d)140cm/s اللي على محور y هي y مش h واللي على محور x هيx مش D 10)a student wants to calculate the density of a material with cylindrical objects and their radius the graph in this data shown, then he graphs his data as shown, let the height of all cylinders is h=1.62mm,what is the density of material? a)0.74g/mm3 b)1.2 g/mm3 c)3.65 g/mm3 d)2.3 g/mm3
11) In Ohm's Law, the Rheostat is to a. Protect the ammeter. b. Protect the voltmeter. c. To change the voltage in the battery. d. We do not use the Rheostat in this Exp. 12) The resistance for certain resistor does not depend on the resistor: a. Mass c. Radius b. Length d. Cross - section area 13)in conservation of energy experiment, a student obtained the following graph between x and t2 if M=1600g and g=9.8m/s2 what is the value of the mass m a)1100g b)735g c)150g d)1500g 14) the kinetic energy of vibrational spring-mass system when the spring at maximum displacement is: a) minimum b)equals potential energy c)maximum d)zero 15)in newton’s second law exp, the graph show the relationship between acceleration and(m1-m2), what is the total mass of a system?(g=10) a)160.18g b)1500g c)1000g d)1250g 16)in the conservation of energy exp, a student obtains the relation between the distance x and the square of time t2 as x=65t2 where x in cm,t in s, if M=1200g and m=300g then the value of the gravitational acceleration in(cm/s2 ) is: a)725 b)975 c)650 d)890