Force, Motion & Gravity MCQs with Answers

One-liner

Fasteners is not a disadvantage of friction; in fact, fasteners like nuts and bolts rely on friction to hold things together.

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760 torr is equal to 101325 Pascal.

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Honey is a non-Newtonian fluid because its viscosity changes under applied stress or shear rate.

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A mason uses a plumb line to keep a wall vertical.

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The escape velocity from the Earth's surface is 11.2 km/sec (approximately 40,320 km/h).

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The De Broglie wave group (group velocity) associated with a moving body travels with the same velocity with which the body is moving.

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Electromagnetic force and force is the pair of scalar and vector quantity, as electromagnetic force (a specific force with magnitude only in certain contexts) and force (which has both magnitude and direction) form such a pair.

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None of these — all three states of matter (solids, liquids, and gases) are compressible to some degree, though gases are the most compressible.

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Hydraulic power systems can use All of these fluids — water, oil, and synthetic fluids — depending on the application and operating conditions.

One-liner

The attractive force among molecules is stronger in solids because molecules are tightly packed and have the least kinetic energy.