Section Review 10.1

What term refers to any change in velocity?

Acceleration.

What term describes a change in velocity over time?

Deceleration.

What are two components of vector quantity?

Magnitude and direction.

What is the study of matter and energy and the interactions occurring between them?

Physics.

What term describes a vector showing the combined effect of two or more vectors?

Resultant.

Contrast speed and velocity.

Speed is a scalar measuring the distance covered by an object per unit time, but velocity is a vector measuring the displacement of an object per unit time.

Define mechanics.

The branch of physics that addresses the effects of force on matter.

Define distance and displacement.

The distance traveled depends on the object's path. The displacement depends only on the final and initial positions, not on the path taken.