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Multiple Choice

The symbol W is used to denote which physical quantity?

W is the symbol for work. Work is the transfer of energy that happens when a force moves an object a certain distance in the direction of the force. The amount of work depends on the size of the force, the distance moved, and how well the force aligns with the motion, described by W = F × d × cos(theta). The unit is the joule, which is the same as a newton-metre. Power is something different: it tells you how quickly work is done, and is represented by P. Weight is the gravitational force on an object, often written as F_g = m g; in many physics contexts, W specifically denotes work rather than weight. So, the symbol W denotes work.

W is the symbol for work. Work is the transfer of energy that happens when a force moves an object a certain distance in the direction of the force. The amount of work depends on the size of the force, the distance moved, and how well the force aligns with the motion, described by W = F × d × cos(theta). The unit is the joule, which is the same as a newton-metre.

Power is something different: it tells you how quickly work is done, and is represented by P. Weight is the gravitational force on an object, often written as F_g = m g; in many physics contexts, W specifically denotes work rather than weight.

So, the symbol W denotes work.