Forces Quiz Questions and Answers PDF - 17

MCQ 81: The push or pull between electric charges is termed as

1. atomic energy
2. magnetic force
3. electric force
4. resistance

MCQ 82: The SI unit of speed is

1. mh^-1
2. ms^-1
3. ms^-2
4. kmh^-1

MCQ 83: The screw gauge is able to measure to a precision of

1. 0.01 cm
2. 0.1 cm
3. 1 cm
4. 0.001 cm

MCQ 84: Object fall to the ground after we throw them up in the air is due to force called

1. weight
2. mass
3. density
4. tension

MCQ 85: The mass of the jar containing air is 320 g, mass of evacuated jar is 305 g, mass of jar with water is 1090 g and density of water is 1 g cm^-3. What mass of air filled the bottle?

1. 258 g
2. 310 g
3. 15 g
4. 1.27 × 10^-3 g cm^-3