Quiz on Force and Pressure Test 5 ( physics) Welcome to your Quiz on Force and Pressure Test 5 ( physics) Name Email 1.The sound of thunder is heard much later than the flash of light is seen. What does this show? (a). The speed of sound is much less than the speed of light. (b) The speed of sound is thrice the speed of light (c) The speed of sound is twice the speed of light. (d) The speed of sound is same as the speed of light. None 2. What is the melting point of ice at the sea-level at normal atmospheric pressure and at 45 degree latitude? (a) 256.14 K (b) 273.16 K (c) 245.18 K (d) 222.14 K None 3.Friction depends on the smoothness of the surfaces. The force of friction always ______ the applied forces. (a) reflects (b) conducts (c) opposes (d) adds up to None 4.If two forces act on an object from opposite directions, then the magnitude of the net force acting on it is the ______ of the magnitudes of the two forces. (a) product (b) sum (c) ratio (d) difference None 5. Which of the following quantities is measured using a torsion balance? (a) Magnetism (b) Charge (c) Pressure (d) Force None 6.The inertia of an object is measured by its ______. (a) volume (b) speed (c) mass (d) area None 7. Which of the following statements is correct? (a) If the constituents of the medium oscillate along the direction of wave propagation, we call the wave a transverse wave. (b) The minimum distance between two points in a wave having the same phase at a particular instant of time is called the wave length. (c) If the constituents of the medium oscillate perpendicular to the direction of wave propagation, we call the wave a longitudinal wave (d) Frequency of a wave is the number of oscillations of each constituent particle in the vibrating medium per minute. . Which of the following statements is correct? SSC CGL 23/08/21(Afternoon) (a) If the constituents of the medium oscillate along the direction of wave propagation, we call the wave a transverse wave. (b) The minimum distance between two points in a wave having the same phase at a particular instant of time is called the wave length. (c) If the constituents of the medium oscillate perpendicular to the direction of wave propagation, we call the wave a longitudinal wave None 8.Which of the following is a characteristic of conservative force? (a) Energy is dissipated as heat energy. (b) Work done by it in a round trip is not zero. (c) Work done by it depends upon the path. (d) Work done by it is completely recoverable. None 9.______ is the external agency applied on a body to change its state of rest or uniform motion. (a) Heat (b) Power (c) Energy (d) Force None 10.With what do you divide thrust in a liquid to obtain the value of pressure? (a) Volume (b) Area (c) Density (d) Mass None 11.Which instrument is used to measure the level of humidity? (a) Fathometer (b) Galvanometer (c) Hygrometer (d) Hydrometer None 12.Which of the following is NOT a scalar quantity ? (a) Volume (b) Temperature (c) Torque (d) Time None 13.A barometer is used to measure which one of the following? (a) Current (b) Atmospheric Pressure (c) Humidity (d) Altitude None 14.Which of the following equations represents Pressure in Physics ? (a) Mass/Acceleration (b) Force / Area (c) Mass × Acceleration (d) Force × Area None 15. Inertia is proportional to: (a) Mass (b) Weight (c) Length (d) Heigh None 16.According to ______ , pressure is equal to the force divided by the area on which it acts. (a) Pascal’s Law (b) Hooke’s Law (c) Stefan Boltzmaan’s Law (d) Newton’s Law None Time's up
