Physics
>
GCSE
>
Newton's Laws
>
What is th...
2 years ago
Β·
55 Replies
Β·
4066 views
Misty Cronin
Use our concise notes and diagrams to only revise what you need to know.
By submitting your email, you agree to join our mailing list. You can unsubscribe at any time.
55 Answers
F=ma
The acceleration of an object depends on the force applied and mass of the object
Found this useful? Give kudos!
Newton's second law states that force is the rate of change of momentum.
This mathematically simplifies to F = ma in scenarios where the mass of the object does not change (so for example would not apply to rockets where their mass changes quickly). When using F = ma be aware that F is the resultant force on an object, m = its mass, and a = the acceleration the object experiences.
Found this useful? Give kudos!
resultant force= mass x acceleration
The acceleration of an object is proportional to the resultant force on it and inversely proportional to the objects mass.
Which means:
An objects acceleration is directly proportional to the resultant force acting on it. The object accelerates as a result of the resultant force. If the resultant force is bigger that means it will accelerate more.
An objects acceleration is also dependent on its mass but its inversely proportional which means the larger the mass the smaller the acceleration.
Found this useful? Give kudos!
Enthusiastic physics and maths tutor with 31 years experience
91 reviews
Rate of change of momentum is directly proportional to the resultant force, and in the same direction.
Found this useful? Give kudos!
I'm available for 1:1 private online tuition!
Click here to view my profile and arrange a free introduction.I tutor Edexcel GCSE Maths and AQA Physics GCSE and A-level.
2 reviews
Newton's second law states that the force acting on an object is directly proportional to the acceleration that object feels, mathematically defined as F=ma.
Found this useful? Give kudos!
I'm available for 1:1 private online tuition!
Click here to view my profile and arrange a free introduction.Newton's second law of motion has two distinct definitions for exams.
1) The first is that the resultant force on an object is proportional to the bodies acceleration (F = ma) This holds for constant mass.
2) The more general approach is that the resultant force on a body is equal to the rate of change of momentum. (F =dp/dt) where p is momentum and t is time.
Found this useful? Give kudos!
The defining equation for Newtonβs 2nd Law is F=ma. This essentially states that the resultant force acting on an object (F) in Newtons is equal to its mass (m) in kg multiplied by its acceleration (a) in ms^-2
Found this useful? Give kudos!
Newton's second law states that the force acting on an object is equal to the mass of that object multiplied by its acceleration. Mathematically, it can be expressed as F = m*a, where F represents the force, m is the mass of the object, and a is its acceleration.
Found this useful? Give kudos!
The resultant force acting on a body produces acceleration in the direction of this force. This acceleration is directly proportional to the applied force, and inversely proportional to the mass of body.
Found this useful? Give kudos!
Newtons Second law is f = ma, which is the force = mass x Acceleration , Force (Newtons) = Mass (kg) x Acceleration (Metres/ Second)
Found this useful? Give kudos!
Force is equal to mass multiplied by acceleration:
F = ma
Found this useful? Give kudos!
Exam specialist in GCSE, A Level and IB Mathematics. 10+ years exp
Newton's second law states that Net Force acting on an object is directly proportional to its acceleration. In mathematical terms
F= ma
where F = net force acting on the object
m = mass of the object
a = acceleration
Found this useful? Give kudos!
I'm available for 1:1 private online tuition!
Click here to view my profile and arrange a free introduction.Newton's second law can simply be remembered by the equation F=ma, where F=force, m=mass, and a=acceleration. The acceleration of an object is dependent on two variables the net force acting upon the object and the mass of the object for example; when riding your bike your bicycle would be the mass and your legs pushing the pedals would be the force being applied. When this happens your bicycle starts moving which is acceleration.
Found this useful? Give kudos!
A level Physics and GCSE Science Tutor.
Force is equal to the rate of change of momentum. F = dp/dt, where F = force, p = momentum and t = time. dp/dt is the first order derivative of momentum with respect to time. In cases where mass remains constant throughout the motion, F = dp/dt can be simplified to F = ma, where m = mass and a = acceleration, this is because p = mv, where v = velocity, and a = dv/dt, so making these substitutions:
F = dp/dt
= m dv/dt
= ma
Note that this simplification only applies when mass remains constant.
Found this useful? Give kudos!
I'm available for 1:1 private online tuition!
Click here to view my profile and arrange a free introduction.A force applied to an object equals a change in momentum (mass x velocity)
Found this useful? Give kudos!
Think you can help?
Get started with a free online introductions with an experienced and qualified online tutor on Sherpa.
Find a GCSE Physics Tutor