# Is the rate of change in position?

In physics, velocity

**is the rate of change**of**position**. Thus, 38 feet per second is the average velocity of the car between times t = 2 and t = 3.A.

### What is the rate of change of the position of an object?

A similar but separate notion is that of velocity, which the

**rate of change**of**position**. Example . If p(t) is the**position of an object**moving on a number line at time t (measured in minutes, say), then the average**rate of change**of p(t) is the average velocity of the**object**, measured in units per minute.#### What is the rate of change of velocity?

**Velocity**: The**rate of change**of displacement of an object (displacement over elapsed time) is**velocity**.**Velocity**is a vector since it has both magnitude (called speed) and direction. Acceleration: The**rate of change of velocity**is acceleration.#### What is the upward force of air against a moving object?

science quiz motionQuestion Answer Rest zero velocity Momentum mass of an object multiplied by its velocity Air Resistance upward force of air against a moving object Vertical velocity in an up or down direction #### What is the change in position of an object per unit of time?

The unit of acceleration is change of position per unit of time per unit of time, such as meters/**second**/**second**. Acceleration can be positive or negative. Velocity is an object's change of position per unit of time. Acceleration is the rate at which velocity changes in a unit of time.

B.

### How do we describe the rate of change of the rate at which an object moves?

An

**object's**motion depends on how it**changes**position. Motion can be described using**speed**, velocity, or acceleration.**Speed**is how fast an**object moves**. Acceleration**describes the rate at which an object's**velocity**changes**.#### What is the rate of change of velocity?

We describe motion in terms of**velocity**and acceleration.**Velocity**: The**rate**of**change**of displacement of an object (displacement over elapsed time) is**velocity**.**Velocity**is a vector since it has both magnitude (called speed) and direction.#### Can be generally defined as a change in position?

Motion,**Position**, Velocity, And Acceleration. An object's**change in position**with respect to time is known as its displacement. The velocity of an object is found by taking the derivative of the**position**function: . Velocity**can**be thought of as the object's speed and direction, or**change in position**over time.#### What property of matter is related to inertia?

According to Newton's first law of motion, an object with a given velocity maintains that velocity unless acted on by an external force. Inertia is the property of matter that**makes**this law**hold**true. The amount of inertia that an object possesses is**proportional**to its mass .

C.

### Is the rate of change of velocity?

We describe motion in terms of

**velocity**and acceleration.**Velocity**: The**rate of change**of displacement of an object (displacement over elapsed time) is**velocity**.**Velocity**is a vector since it has both magnitude (called speed) and direction.#### What is the rate of change of jerk?

**Jounce**(also known as snap) is the fourth derivative of the position vector with respect to time, with the first, second, and third derivatives being velocity, acceleration, and**jerk**, respectively; in other words,**jounce**is the**rate of change**of the**jerk**with respect to time.#### What is the rate of change of speed?

The other component of acceleration, which is perpendicular to velocity, is known as normal acceleration. This component is responsible for**changing**the direction of the velocity. Velocity is the**rate of change**of displacement, while**speed**is the**rate of change**of distance.#### What is the rate at which an object moves?

Velocity describes an**object's**speed and the direction it**moves**. Acceleration describes the**rate**at which an**object's**velocity changes. A graph can show you how either the displacement or the speed of an**object**changes over time. A force is a push or pull on an**object**.

Updated: 22nd September 2018