Understanding the Definition of Relative: Simplified Explanation for Beginners

In summary, relative means with respect to or in relation to something else. It is used to describe the relationship between two objects or individuals and how they are moving or positioned in relation to each other. At lower speeds, this concept is simple to understand, but at high speeds, it becomes more complex due to time dilation and length contraction.
  • #1
jamesfirst
26
0
What does relative mean..!

I still don't understand the meaning of relative.

I cannot breach onto the concept of Einstein's Principles of Relativity without knowing the meaning of it!

I searched the internet but all of the definitions listed makes no sense to me..

Can somebody define what relative means in a simple statement..


Kind regards, James
 
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  • #2


At speeds far less than light speed, suppose Jack and Jill are both sitting in the front seat of a car moving at 30 m/s relative to the ground. But their speed relative to each other is zero. You can replace the term 'relative' with the phrase 'with respect to' . Or say Dick is running east toward Jane at 5 m/s with respect to (relative to) the ground, and Jane is running west toward Dick at 6 m/s with respect to the ground, then relative to each other, Jane is running west toward Dick at 11 m/s relative to Dick, and Dick is running east toward Jane at 11 m/s relative to Jane. This simple addition of velocities breaks down at speeds that are a significant fraction of lightspeed, due to time dilation and length contraction at those high speeds.
 
  • #3


PhanthomJay said:
At speeds far less than light speed, suppose Jack and Jill are both sitting in the front seat of a car moving at 30 m/s relative to the ground. But their speed relative to each other is zero. You can replace the term 'relative' with the phrase 'with respect to' . Or say Dick is running east toward Jane at 5 m/s with respect to (relative to) the ground, and Jane is running west toward Dick at 6 m/s with respect to the ground, then relative to each other, Jane is running west toward Dick at 11 m/s relative to Dick, and Dick is running east toward Jane at 11 m/s relative to Jane. This simple addition of velocities breaks down at speeds that are a significant fraction of lightspeed, due to time dilation and length contraction at those high speeds.

Ah in the respect to.


Nice. I understand now.
 

FAQ: Understanding the Definition of Relative: Simplified Explanation for Beginners

What is the definition of relative?

The definition of relative is something that is considered in relation to something else. It is a term used to describe the connection or comparison between two or more things.

How is the concept of relative used in science?

The concept of relative is used in science to describe the relationships between different variables or factors in an experiment or observation. It helps scientists understand the influence that one thing has on another.

Can you give an example of relative in science?

One example of relative in science is the concept of relative humidity. It is a measure of the amount of water vapor in the air compared to the maximum amount of water vapor that the air can hold at a given temperature. It helps meteorologists understand how the amount of water vapor in the air affects weather patterns.

How is the concept of relative different from absolute?

The concept of relative is based on comparison and is dependent on the context or perspective. Absolute, on the other hand, describes something that is not influenced by any external factors and is considered as a fixed value.

Why is it important to understand the definition of relative in science?

Understanding the definition of relative is important in science because it helps us make accurate observations and draw meaningful conclusions. It allows us to consider the impact of different variables and understand their relationships, which is crucial in conducting experiments and making scientific discoveries.

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