A substance will float on surface of water if its density is less than
A. liquid
B. gas
C. both a and b
D. aqueous
Related Questions on Chapter 10: Forces Effects - Science Mcqs for Grade 7
The force of friction can be reduced by the help of
A. ball bearing
B. lubricants
C. cushion surfaces
D. all of them
A force which occurs when two surfaces come in contact and slows down motion while acting in
A. opposite direction
B. same direction
C. same and opposite direction
D. both a and b