Question : Which of the following is not a vector quantity?
Option 1: Speed
Option 2: Velocity
Option 3: Torque
Option 4: Displacement
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Correct Answer: Speed
Solution : The correct answer is Speed.
While speed and velocity are measures of how fast an object is moving, they differ in that velocity is a vector quantity as it includes information about the object's direction and speed. Speed is a scalar quantity as it only represents the magnitude of the object's motion without considering the direction.
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Question : Which of the following is a scalar quantity?
Option 1: Velocity
Option 2: Force
Option 3: Angular momentum
Option 4: Electrostatic potential
Question : Which of the following has the same unit?
Option 1: Work and power
Option 2: Torque and moment of inertia
Option 3: Work and torque
Option 4: Torque and angular momentum
Question : An anemometer measures which of the following?
Option 1: Speed of light
Option 2: Speed of wind
Option 3: Speed of water current
Option 4: Speed of satellites
Question : A light year is a measure of
Option 1: speed
Option 2: velocity
Option 3: distance
Option 4: time
Question : An object with constant speed:
Option 1: is not accelerated
Option 2: might be accelerated
Option 3: is always accelerated
Option 4: also has a constant velocity
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