# Which means 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.A.

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

In physics, motion is a

**change in position of an object**over time. Motion is described in terms of displacement, distance, velocity, acceleration, time, and speed.#### What is it called when an object changes position over time?

Motion is when an**object changes position over time**. The**object**in motion is usually in front of a reference point-an**object**that appears to stay in one place. The rate at which an**object**moves is**called**speed. Speed depends on both**time**and distance. The velocity of an**object**is how fast it is going in one direction.#### What is the name of a tool used to measure force?

A**force**meter is**used to measure forces**.**Forces**can be**measured**using a**force**meter.**Force**meters contain a spring connected to a metal hook. The spring stretches when a**force**is applied to the hook.#### What happens when two forces act in the same direction on the same object?

False:**Forces**may work together OR they may be OPPOSITE**forces**. If opposite**forces**are balanced, they cancel each other out and do NOT cause a change in the object's motion. When**two forces act in the SAME direction**on an object, the net**force**is equal to the _____ of the**two forces**.

B.

### What is the term for the overall change in position?

the

**change in position**of one object in relation to the**position**of some fixed object/ Distance. a measure of the**total**length along a path between two points. Displacement. a measure of both length and the direction of an object's path from its starting point straight to its ending point.#### What is it called when an object changes position?

In physics, motion is a**change**in**position**of an**object**over time. Motion is described in terms of displacement, distance, velocity, acceleration, time, and speed. An**object's**motion cannot**change**unless it is acted upon by a force, as described.#### What is the distance traveled by an object in a unit of time?

The distance an object travels per unit of time. The speed of an object at one instant in time. A push or a pull exerted on an object. A unit of measure that equals the force required to accelerate 1 kilogram of mass at**1 meter**per second per second.#### What is the speed and direction of a object?

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.**Velocity describes an object's speed**and the**direction**it moves.

C.

### What is defined as a change in position?

A

**change in position**is evidence that motion happened. Describing Motion. It is easy to describe motion if it takes place in a straight line. An object's**position**can be described by showing how its distance from the reference point**changes**with time.#### What are the three ways you can accelerate?

An**object accelerates**when its velocity changes as a result of increasing speed, decreasing speed, or a change in direction. Like velocity, acceleration has a direction. Acceleration**can**be represented by an arrow. The figures on the next page show different**ways an object can accelerate**.#### What is the definition of position in physics?

In**physics**,**position**is usually a number on an axis. A number where direction doesn't matter is called a scalar.**Position**is a vector, because direction matters. But distance is a scalar. Distance is how far you've traveled.#### What do you call a change in 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.**We**sometimes refer to negative acceleration as deceleration.

Updated: 14th October 2018