# How is position related to motion?

An object is in motion when its position is changing. Speed describes how far an object moves in a given amount of time (for example, miles per hour). A force is a push or pull that can cause an object to move, stop, or change speed or direction.
A.

### What is the position of an object?

You can describe the motion of an object by its position, speed, direction, and acceleration. Page 2. 4 Linear Motion. An object is moving if its position relative to a fixed point is changing. 4.1 Motion Is Relative.
• #### Why is it important for you to know if your reference point is moving?

An object is in motion if it changes position relative to a reference point. Why is it important to know if your reference point is moving? You will find it difficult to determine which direction you're moving in, or if you're moving at all. Describe your motion relative to the car, the road, and the sun.
• #### What is the velocity of an object?

For example, "5 metres per second" is a scalar, whereas "5 metres per second east" is a vector. If there is a change in speed, direction or both, then the object has a changing velocity and is said to be undergoing an acceleration.
• #### How are speed and velocity different?

Speed is the distance traveled by an object where as, velocity is distance traveled by an object per unit time in a particular direction. Speed is a scalar quantity where as velocity is a vector quantity.
B.

### How do we describe motion?

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. As there is no absolute frame of reference, absolute motion cannot be determined. Thus, everything in the universe can be considered to be moving.
• #### What is an example of motion?

Linear motion is the type of motion in which all parts of an object move in the same direction and each part moves an equal distance. Linear motion is measured by speed and direction. Distance travelled by an object per unit of time is called velocity. Example: a moving car. Example: the up and down motion of a yo-yo.
• #### How do you describe the motion?

You can describe the motion of an object by its position, speed, direction, and acceleration. An object is moving if its position relative to a fixed point is changing. Even things that appear to be at rest move.
• #### What are the three laws of motion?

Newton's first law states that every object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force. The third law states that for every action (force) in nature there is an equal and opposite reaction.
C.

### How do you describe the position of an object?

You can describe the motion of an object by its position, speed, direction, and acceleration. An object is moving if its position relative to a fixed point is changing. Even things that appear to be at rest move.
• #### What is meant by a body at rest?

Rest is a state in physics that refers to an object being stationary relative to a particular frame of reference or another object; when the position of a body with respect to its surroundings does not change with time it is said to be "at rest".
• #### Who do you calculate speed?

A: For a body moving at a uniform velocity you can calculate the speed by dividing the distance traveled by the amount of time it took, for example one mile in 1/2 hour would give you 2 miles per hour. If the velocity is non-uniform all you can say is what the average speed is. Same calculation.
• #### How are speed and velocity different?

Speed is the distance traveled by an object where as, velocity is distance traveled by an object per unit time in a particular direction. Speed is a scalar quantity where as velocity is a vector quantity.

Updated: 2nd October 2019