Multiple Choice
Friction between any two objects is due to
A) attraction between them
B) repulsion between them
C) some adhesive forces between them
D) irregularities on the surfaces
Correct Answer:
Verified
Correct Answer:
Verified
Q15: The hot air balloon rises because it
Q16: Evaporation is the process of changing liquid
Q17: The branch of physics which deals with
Q18: Pascal is the unit for<br>A)pressure<br>B)thrust<br>C)buoyant force<br>D)None of
Q19: The first thermometer was developed by<br>A)Joule<br>B)Fahrenheit<br>C)Galileo<br>D)Watt
Q20: In summer, the clocks<br>A)become slow<br>B)become fast<br>C)gives correct
Q21: It is difficult to walk on ice
Q22: An ice cube is floating in a
Q23: The mercury barometer was invented by<br>A)Celsius<br>B)Fahrenheit<br>C)Torricelli<br>D)Bernoulli
Q24: Heat flows as a result of difference