1) What is the SI unit of electric current? a) Volt b) Ampere c) Ohm d) Watt 2) The speed of light in a vacuum is approximately: a) 300,000 km/s b) 150,000 m/s c) 3,000 m/s d) 30,000 km/s 3) Which of the following is a scalar quantity? a) Velocity b) Force c) Mass d) Acceleration 4) The gravitational force between two masses is directly proportional to the: a) Square of the distance between them b) Cube of the distance between them c) Inverse of the distance between them d) Fourth power of the distance between them 5) What is the unit of power in the International System of Units ? a) Joule b) Watt c) Newton d) Coulomb 6) The unit of electric charge is: a) Volt b) Ampere-hour c) Coulomb d) Ohm 7) Which of the following equations represents Ohm's Law? a) V=IR b) P=IV c) F=ma d) E=mc2 8) What is the SI unit of pressure? a) Pascal b) Newton c) Joule d) Watt 9) The branch of physics that deals with the motion of objects without considering the cause of the motion is called: a) Dynamics b) Kinematics c) Thermodynamics d) Statics 10) If the mass of an object is doubled, what happens to its gravitational force with another object? a) it remains the same b) It is halved c) It is doubled d) It becomes four times larger

C - 9 Physics: Unit -1 Physical Quantities and Measurement Composed by Sir Zahid

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