Question

which of the following is a scalar quantity? (1 point)
○ acceleration
○ speed
○ displacement
○ velocity

Explanation:

• Acceleration: It has both magnitude and direction (e.g., \(a = 2\ m/s^{2}\) towards the north), so it is a vector quantity.
• Speed: It only has magnitude (e.g., \(v = 5\ m/s\)), so it is a scalar quantity.
• Displacement: It has both magnitude and direction (e.g., \(d= 10\ m\) east), so it is a vector quantity.
• Velocity: It has both magnitude and direction (e.g., \(v = 3\ m/s\) south - east), so it is a vector quantity.

Answer:

speed