definition
Force is a push or a pull acting on an object. It can cause an object to:
Start moving
Stop moving
Change direction
Change shape
Change speed
scientific definition
Force is an interaction that, when unopposed, will change the motion of an object.
It is a vector quantity, meaning it has both magnitude (strength) and direction.
Unit of Force:
SI unit: Newton (N)
1 Newton = Force needed to accelerate 1 kg of mass by 1 m/s².
Examples of Force:
Lifting a bag (muscular force)
Magnet attracting a pin (magnetic force)
Wind blowing leaves (air force)
Brakes stopping a bicycle (frictional force)
Types of Forces:
1. Contact Forces
(require physical contact):
Friction
Muscular force
Tension
2. Non-Contact Forces
(act at a distance):
Gravitational force
Magnetic force
Electrostatic force
What are the most important force?
Is gravity a force? If so why?
How does a force change direction? Explain with an example.
Is there force in outer space?
Can force be decreased? If so how?
Do the equation in your note and add the answer here.
What is the force if a 2 kg object accelerates at 3 m/s²?
A car has a mass of 1,000 kg and accelerates at 2 m/s². What is the force?
A 5 kg box is pushed with a force that makes it accelerate at 4 m/s². Find the force?
A 20 kg object is pulled with a force of 100 N. What is its acceleration?
A person pushes a shopping cart with a force of 150 N. The cart accelerates at 3 m/s². What is its mass?
A 0.5 kg rock falls under gravity (acceleration = 9.8 m/s²). What is the gravitational force on the rock?
This is isai posting from aarivs account.