Newton's Second Law of Motion (F=ma) | GCSE Physics | Doodle Science

Doodle Science teaches you high school physics in a less boring way in almost no time!

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An object will accelerate in the direction of the resultant force. The bigger the force, the greater the acceleration. By doubling the size of the force, it doubles the acceleration. Also, a force acting on a large mass will accelerate it less than the same force acting on a smaller mass. Doubling the mass of an object halves it's acceleration. The relationship between these variables can be shown by the equation, F=ma. Where F is the resultant force in Newtons. M is the mass in Kg and A is the acceleration of the object in meters per second squared. For example, If a car has a mass of 700kg and the driver pushes the car with an acceleration of 0.05m/s^2 then the force applied was 35N. You can also use the formula to work out the acceleration and the mass. And to leave you with a cool fact, a newton is approximately the weight of an apple.

[NurAzierah]

I like how well your videos are explained and presented. A great way to transform something boring into an interesting topic. I like how concise your contents are, encouraging me to search for more, taking an initiative of my own to go deeper. Good job! Keep it up! :)

[plukpro]

Wow, so much hate from other commenters. I think it's a pretty decent video, well done.

[frankdimeglio]

The page "Physics of the COSMOS (Book Series)" has given the following writing the thumbs up on its page.

FULLY UNDERSTANDING E=MC2 AND F=MA:

E=mc2 is DIRECTLY AND FUNDAMENTALLY DERIVED FROM F=ma. "Mass"/ENERGY IS GRAVITY. ELECTROMAGNETISM/ENERGY IS GRAVITY. This is PROVEN by BOTH F=ma AND E=mc2. Gravity/acceleration involves BALANCED inertia/INERTIAL RESISTANCE, AS ELECTROMAGNETISM/ENERGY IS GRAVITY. GRAVITATIONAL FORCE/ENERGY IS proportional to (or BALANCED with/as) inertia/INERTIAL RESISTANCE, AS ELECTROMAGNETISM/ENERGY IS GRAVITY. ALL of SPACE is NECESSARILY ELECTROMAGNETIC/GRAVITATIONAL (IN BALANCE), AS ELECTROMAGNETISM/ENERGY IS GRAVITY. Energy has/involves GRAVITY, AND ENERGY has/involves inertia/INERTIAL RESISTANCE. It ALL makes perfect sense. Gravity IS ELECTROMAGNETISM/ENERGY. ELECTROMAGNETISM/ENERGY IS GRAVITY. Time dilation ALSO proves that GRAVITY IS ELECTROMAGNETISM/ENERGY. THINK about it.

ELECTROMAGNETISM/ENERGY IS CLEARLY GRAVITY.

ALL of SPACE is NECESSARILY ELECTROMAGNETIC/GRAVITATIONAL (IN BALANCE), AS ELECTROMAGNETISM/ENERGY IS GRAVITY. "Mass"/ENERGY involves BALANCED inertia/INERTIAL RESISTANCE consistent WITH/AS what is BALANCED ELECTROMAGNETIC/GRAVITATIONAL FORCE/ENERGY, AS ELECTROMAGNETISM/ENERGY IS GRAVITY. "Mass"/ENERGY IS GRAVITY. E=mc2 is DIRECTLY AND FUNDAMENTALLY DERIVED FROM F=ma. ELECTROMAGNETISM/ENERGY IS GRAVITY. Energy has/involves GRAVITY, AND ENERGY has/involves inertia/INERTIAL RESISTANCE. GRAVITATIONAL force/ENERGY IS proportional to (or BALANCED with/as) inertia/INERTIAL RESISTANCE, AS ELECTROMAGNETISM/energy is gravity. Gravity/acceleration involves BALANCED inertia/INERTIAL RESISTANCE, AS ELECTROMAGNETISM/ENERGY IS GRAVITY. Indeed, A PHOTON may be placed at the center of THE SUN (as A POINT, of course); as the reduction of SPACE is offset by (or BALANCED with) the SPEED OF LIGHT; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. PERFECT. It is proven. F=ma AND E=mc2 PROVE that ELECTROMAGNETISM/ENERGY IS GRAVITY. Great.

Very importantly, outer "space" involves full inertia; AND it is FULLY INVISIBLE AND black.

By Frank DiMeglio

[MyNguyen-phsi]

Awesome videos! So glad i discovered your channel, considering that I'm taking Physics iGCSE and you cover A LOT of topics on it. These are great revision materials, thanks!

[blubirdgirly]

So your telling me that if I throw 35 apples at a car it will

[frankdimeglio]

ON THE ABSOLUTE PHYSICAL EQUIVALENCY AND BALANCING OF E=MC2 AND F=MA:

It is a very great truth in physics that the ability of thought to DESCRIBE OR reconfigure sensory experience is ULTIMATELY dependent upon the extent to which THOUGHT IS SIMILAR TO sensory experience, AS E=mc2 IS F=ma; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. (THOUGHTS ARE INVISIBLE.) INDEED, E=mc2 IS DIRECTLY and fundamentally derived from F=ma; AS time dilation proves that electromagnetism/ENERGY IS GRAVITY. Therefore, ultimately and truly, time is possible/potential AND actual IN BALANCE; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. In fact, INSTANTANEITY is FUNDAMENTAL to the FULL and proper understanding of physics/physical experience; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. THE stars AND PLANETS are POINTS in the night sky. A PHOTON may be placed at the center of what is THE SUN (as A POINT, of course), AS the reduction of SPACE is offset by (or BALANCED with) the speed of light; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. E=mc2 IS F=ma. GREAT !!! BALANCE AND completeness go hand in hand. It all CLEARLY makes perfect sense. (Very importantly, outer "space" involves full inertia; AND it is fully invisible AND black.) The INTEGRATED EXTENSIVENESS of THOUGHT (AND description) is improved in the truly superior mind. Gravity IS ELECTROMAGNETISM/ENERGY.

By Frank DiMeglio

[ruskodudesko]

thanks for the visualization it really helped a lot!

[frankdimeglio]

Frank DiMeglio is the world authority on gravitation.

[McFella]

My teacher forced me to be here when I could be working on my YouTube channel, we'll see who's laughing when I get enough subscribers for ad-revenue so I could make money.

[ihavenoideawhatmynameis]

Do you make videos for Biology and Chemistry too? The videos are quite helpful for quick revision. Thanks :)

[haleydavis]

Wow that really helped me !!! Great video!!!!😄

[duckright]

Force does not depend on acceleration. Acceleration depends on force. You don't push a car with a certain acceleration. You push it with a certain amount of force. Get it?

[siyaninimsaranissencever]

this is great srsly..thank you so much

[fredknight]

cool video but this only applies on objects with fixed masses, make a video about how the law applies to rockets and other variable mass systems 

[timdillivan]

What if a mass of 2 lbs. is moving at a constant speed with no acceleration?
According to the equation f=ma: f=2x0 and force therefore equals 0.
But we all know it takes a certain amount of force to keep an object moving even if it's not accelerating.
I obviously am wrong here and am not thinking properly.

[frankdimeglio]

THE ULTIMATE UNDERSTANDING OF SPACE AS ELECTROMAGNETIC/GRAVITATIONAL (IN BALANCE):

A PHOTON may be placed at the center of THE SUN (as A POINT, of course), as the reduction of SPACE is offset by (or BALANCED with) the SPEED OF LIGHT; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. The ability of THOUGHT to DESCRIBE OR RECONFIGURE sensory experience is ULTIMATELY dependent upon the extent to which THOUGHT IS SIMILAR TO sensory experience. THOUGHTS ARE INVISIBLE. E=mc2 is DIRECTLY AND FUNDAMENTALLY DERIVED FROM F=ma. F=ma AND E=mc2 PROVE that ELECTROMAGNETISM/ENERGY IS GRAVITY, AS ALL of SPACE is NECESSARILY ELECTROMAGNETIC/GRAVITATIONAL (IN BALANCE). This NECESSARILY represents, INVOLVES, AND describes what is possible/potential AND ACTUAL IN BALANCE. Indeed, energy has/involves GRAVITY; AND ENERGY has/involves inertia/INERTIAL RESISTANCE. "Mass"/ENERGY involves BALANCED inertia/INERTIAL RESISTANCE consistent WITH/AS what is BALANCED ELECTROMAGNETIC/GRAVITATIONAL FORCE/ENERGY, AS ELECTROMAGNETISM/ENERGY IS GRAVITY. ACCORDINGLY, gravity/acceleration involves BALANCED inertia/INERTIAL RESISTANCE; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. SO, GRAVITATIONAL FORCE/ENERGY IS proportional to (or BALANCED with/as) inertia/INERTIAL RESISTANCE; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. THEREFORE, "mass"/ENERGY IS GRAVITY. ELECTROMAGNETISM/ENERGY IS GRAVITY. ALL of SPACE is NECESSARILY ELECTROMAGNETIC/GRAVITATIONAL (IN BALANCE), AS ELECTROMAGNETISM/ENERGY IS GRAVITY. BALANCE AND completeness go hand in hand. It ALL makes perfect sense. GREAT

Gravity/acceleration involves BALANCED inertia/INERTIAL RESISTANCE, AS ELECTROMAGNETISM/ENERGY IS GRAVITY. ACCORDINGLY, a given PLANET (INCLUDING WHAT IS THE EARTH) sweeps out equal areas in equal times; AND this is THEN consistent WITH/AS F=ma, E=mc2, AND WHAT IS PERPETUAL MOTION; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. Gravity/acceleration involves BALANCED inertia/INERTIAL RESISTANCE, AS ELECTROMAGNETISM/ENERGY IS GRAVITY. ACCORDINGLY, the rotation of the Moon MATCHES it's revolution. It is PROVEN.

It ALL makes perfect sense. Therefore, objects fall at the SAME RATE (neglecting air resistance, of course); AS ELECTROMAGNETISM/ENERGY IS GRAVITY.

Very importantly outer "space" involves full inertia; AND it is FULLY INVISIBLE AND black.

Get a good LOOK at what is THE EYE. NOW, the stars AND PLANETS are POINTS in the night sky. GREAT. GRAVITATIONAL FORCE/ENERGY IS proportional to (or BALANCED with/as) inertia/INERTIAL RESISTANCE, AS ELECTROMAGNETISM/ENERGY IS GRAVITY. This ALSO explains the supergiant stars, the cosmological redshift, AND the black hole(s). "Mass"/ENERGY IS GRAVITY. ELECTROMAGNETISM/ENERGY IS GRAVITY. ALL of SPACE is NECESSARILY ELECTROMAGNETIC/GRAVITATIONAL (IN BALANCE), AS ELECTROMAGNETISM/ENERGY IS GRAVITY. It ALL makes perfect sense. MAGNIFICENT !!! F=ma AND E=mc2 PROVE that ELECTROMAGNETISM/ENERGY IS GRAVITY. GREAT. Points are POINTS. Gravity IS ELECTROMAGNETISM/ENERGY. ELECTROMAGNETISM/ENERGY IS GRAVITY. BALANCE AND completeness go hand in hand. THINK about it ALL. Beautiful.

By Frank DiMeglio

[frankdimeglio]

This is NOT presenting the full and proper understanding of F=ma.

[webkinzepix]

No help at all! I'm just trying to make a simple poster on Newton's Second Law and this was the least helpful video by far!

[georgeashmore]

anyone else seeing a rip off of minute physics?