Veritasium
Season 2 Episode 7 - The Difference Between Mass and Weight
There is a common perception that weight and mass are basically the same things. This video aims to tease out the difference between mass and weight by asking people what makes a car difficult to push. The standard answer is that it is difficult to push because it's heavy. But heaviness is a measure of weight, the gravitational pull of the Earth attracting the car to Earth's center. When the car is pushed on a flat road, the force of gravity does not oppose the motion. Instead, the resistance felt is an indication of the car's mass which determines its inertia. Inertia is the property of matter which means it tends to resist acceleration - the greater the mass, the less the acceleration for a given amount of force.
Episodes in Season 2
Atomic Theory
2 min
Thomson's Plum Pudding Model of the Atom
2 min
Cathode Rays Lead to Thomson's Model of the Atom
3 min
Scientific Notation - Explained!
5 min
I'm Atoms (Scientific Cover of Jason Mraz's I'm Yours)
3 min
Scientific Notation - Example
1 min
The Difference Between Mass and Weight
3 min
Egg Experiment to Demonstrate Inertia
1 min
Gravity (Scientific Version of John Mayer's Gravity)
4 min
How Far Away is the Moon? (The Scale of the Universe)
2 min
What is a Force?
3 min
What Forces Are Acting On You?
2 min
Why Does the Moon Orbit Earth?
1 min
What Is Gravity?
2 min
Best Film on Newton's Third Law. Ever.
4 min
Calculating Gravitational Attraction
3 min
Which Hits The Ground First?
3 min
Misconceptions About Falling Objects
3 min
Is There Gravity In Space?
2 min
Three Incorrect Laws of Motion
2 min
Experiments A Cappella
1 min
Khan Academy and the Effectiveness of Science Videos
8 min
What Are Atoms and Isotopes?
3 min
Supercooled Water - Explained!
3 min
How Damaging is Radiation?
4 min
