Turning Effects of Forces Conclusion Quiz Questions and Answers PDF - 81

MCQ 401: Centre of gravity and stability of an object whose stability can be increased by

1. high center of gravity and narrow base
2. high center of gravity and broad base
3. low center of gravity and narrow base
4. low center of gravity and broad base

MCQ 402: Increase in pressure

1. lowers the melting point of ice
2. raises the melting point of ice
3. lowers the boiling point of water
4. has no effect on the melting point of ice or boiling point of water

MCQ 403: 1 °C is equal to

1. Temperature in kelvin + 273
2. Temperature in Fahrenheit + 273
3. Temperature in kelvin - 273
4. Temperature in Fahrenheit - 273

MCQ 404: If a person in the mall moves a trolley with a force of 60 N and the trolley moves the distance of 20 m, the work done will be

1. 30 J
2. 40 J
3. 1200 J
4. 80 J

MCQ 405: Resistance of a metal wire at ice point is 800 Ω and 810 Ω at steam point, and resistance of wire is 803 Ω room temperature would be

1. 10 °C
2. 20 °C
3. 30 °C
4. 40 °C