Skip to main content

Speed, Distance and Time | How are they related?

Speed, distance and time are very essential concepts when one starts to learn about physics. Talking about one of them naturally brings up the other two as well, since they are linked with each other. Let's find out how, and learn about them! 


SPEED
Speed is a measure of how fast something is moving. It is how quickly an object is changing it's position, and so, it is a scalar quantity. 

• The speed of an object is said to be more when it is travelling faster and covers more distance in a certain time.

• The speed of the object is said to be less when it is travelling slower and covers lesser distance in the same time.

SI unit of speed:
• m/s (metres  per second)
• Commonly used : Km/h (Kilometres per hour)
• m/h (miles per hour)

How to calculate speed:
speed = distance/ time


DISTANCE
The distance between two objects is a measure how far away the objects are from each other. It is the physical length between two objects.

• The distance between two objects is said to be more if the objects are far from each other.

• The distance between two objects is said to be less if the objects are close to each other.

SI unit of distance:
• m (metres)
• km (kilometres)

How to calculate distance:
distance = speed × time


TIME
Time is the ongoing sequence of events in the past, present and future. Time can be known by looking at a clock. It is never ending, and it keeps going.

• The time taken by an object to travel a certain distance is more if it travels at a lower speed.

• The time taken by an object to travel a certain distance is less if it travels at a higher speed.

SI unit of time:
• minutes
• hours
• seconds

How to calculate time:
time = distance/ speed


And there you go! Now you understand the relationship between Speed, distance and time!

I hope you enjoyed reading today's blog post!
Thank you!









Labels:

Comments

Post a Comment

Popular posts from this blog

Refraction of Light

You must have heard of reflection of light. It's when a ray of light bounces back from a surface.  When a light ray hits a mirror, it bounces back with the same angle as the angle with which it hit the mirror. The angle of incidence is always equal to the angle of reflection But what if instead of a mirror, there is a transparent surface? In such cases, the light ray goes through the surface, and undergoes refraction.  What is refraction? Refraction is the bending of light when it goes from one medium to another. This happens because the speed of light changes across two different media. When a ray of light is perpendicular to the normal, it travels to the other medium without bending. The ray of light only bends when it goes obliquely from one medium to another. This bending of light depends on the medium through which light is travelling. Optical Density • Rarer medium:  The medium through which the speed of light is more is an optically rarer medium. • Denser medium: The medium...
1 comment
Read more

Electricity

We use electricity everywhere.  When it gets dark, you turn the lights on, which run on electricity. You make your food in your microwave oven, which runs on electricity. You watch your favourite shows on your television, which runs on electricity as well. In fact, the very device you are using right now to read this blog requires electricity to function. Electricity is one of the most important inventions, and is very essential in today's world. BUT WHAT IS ELECTRICITY? Electricity is the set of physical phenomena related to the motion of matter that has a property of electric charge.  For example, when electrons flow in a circuit, they produce electricity/electric current. TYPES OF ELECTRICITY There are two types of electricity: • Static electricity :  It occurs when there is an imbalance between negative and positive charges in an object. This can be done by rubbing materials together which leads to the transfer of negative charge(electrons).  For example, wh...
Post a Comment
Read more

The Speed of Light | Why Does it Matter?

HOW FAST DOES LIGHT TRAVEL? If you could travel at the speed of light, you could go around the Earth 7.5 times in one second. This is because the speed of light is as fast as 300,000 kilometres per second or 300,000,000 metres per second . The speed of light in a vacuum is 186,282 miles per second or 299,792 kilometers per second , and in theory nothing can travel faster than light.  This is the cosmic speed limit, and the constant that stands for the speed of light in vacuum is known as 'c' or 'celeritas'. BUT CAN ANYTHING ELSE TRAVEL AT THE SPEED OF LIGHT? Quarks, leptons, neutrinos, and even dark matter all have masses as a property inherent to them. Objects made out of these particles, such as protons, atoms, and even human beings all have masses as well. As a result, they can approach, but never reach the speed of light in a vacuum. No matter how much energy you put into them, the speed of light, even in a vacuum, will forever be unattainable, and nothing...
Post a Comment
Read more