Which statement best describes gravitation A Repulsion between charges B Attraction between masses C Heat flow in solids D Light
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Chapter 8: Gravitation and Pressure (Set-1)
What does “gravity” mean in science A Light bending effect B Heat energy transfer C Force pulling objects D Sound
Continue readingChapter 7: Force, Motion, and Simple Machines (Set-5)
A cyclist goes 6 km east, then 8 km west on the same road; the displacement magnitude is A 14
Continue readingChapter 7: Force, Motion, and Simple Machines (Set-4)
A person walks 3 km east, then 4 km north; the displacement magnitude is A 7 km total B 1
Continue readingChapter 7: Force, Motion, and Simple Machines (Set-3)
In a straight-line trip, which quantity can be smaller than distance because it measures only start-to-end change A Total path
Continue readingChapter 7: Force, Motion, and Simple Machines (Set-2)
When a runner completes one full round of a circular track and stops at the starting point, the displacement is
Continue readingChapter 7: Force, Motion, and Simple Machines (Set-1)
Which statement correctly describes displacement when a person returns to the starting point after walking around A Total path length
Continue readingChapter 6: Sound and Waves (Set-5)
A sound wave has speed 340 m/s and wavelength 0.68 m; its frequency is A 50 Hz B 340 Hz
Continue readingChapter 6: Sound and Waves (Set-4)
A sound wave has frequency 340 Hz in air; its period is A 0.003 s B 0.03 s C 3
Continue readingChapter 6: Sound and Waves (Set-3)
When a guitar string is plucked, the sound is produced mainly by A String vibration B Light reflection C Heat
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