Which of the following is NOT represented by a vector?

Study for the SDI Introduction to Physical Science Test. Prepare with multiple choice questions, and access hints and explanations to enhance understanding. Get ready for your exam!

Speed is a scalar quantity and is not represented by a vector. Scalars have only magnitude, which means they can be described solely by a numerical value and unit (for example, 60 km/h). In contrast, vectors have both magnitude and direction, which is crucial for quantities such as force, acceleration, and velocity.

Force involves the push or pull on an object and is defined by both how strong the force is (magnitude) and in which direction it acts. Similarly, acceleration indicates how quickly an object’s velocity changes over time, incorporating both the rate of change and direction. Velocity describes the speed of an object in a specific direction. Each of these vector quantities conveys essential information about not just "how much," but also "which way," making them fundamentally different from speed.

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy