Forces in action

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Question 11

Medium

An engineer is evaluating the performance of a wind turbine, as shown in the diagram below. They measure three key parameters: the incoming air density ( $ρ\rho$ ), the torque ( $τ\tau$ ) exerted on the turbine blades, and the electrical power ( $P$ ) generated by the system.

Wind turbine parameters

Which row in the table correctly classifies each of these physical quantities as a scalar or a vector?

Row	Air density ( $ρ\rho$ )	Torque ( $τ\tau$ )	Electrical power ( $P$ )
A	Scalar	Scalar	Vector
B	Vector	Vector	Scalar
C	Vector	Scalar	Vector
D	Scalar	Vector	Scalar

Row A: Air density is a scalar, torque is a scalar, electrical power is a vector.

Row B: Air density is a vector, torque is a vector, electrical power is a scalar.

Row C: Air density is a vector, torque is a scalar, electrical power is a vector.

Row D: Air density is a scalar, torque is a vector, electrical power is a scalar.

Forces in action

Question 11

Forces in action Questions

Forces in action

Question 11

Forces in action Questions