Newtons Laws
Cards (9)
- Newton's First Law:
- An object will remain at rest or at a constant velocity unless an unbalanced force acts upon it
- Newton's Second Law: Force = mass Γ acceleration (F = ma), where force is in Newtons, mass is in kg, and acceleration in ms-2
- Weight:
- Measured using a force meter or weighing scales
- The greater the gravitational field strength, the greater the weight
- Circular Motion:
- Object moving in a circle with constant speed
- The speed is constant, but the direction is always changing, leading to acceleration
- Centripetal force is required for motion in a circle, directed towards the center
- Inertial Mass:
- Measure of how difficult it is to change the velocity of an object
- Calculated by π’π§ππ«ππ’ππ₯ π¦ππ¬π¬ = ππ¨π«ππ/πππππ₯ππ«πππ’π¨π§
- Newton's Third Law
- Every action has an equal and opposite reaction
- Acceleration is called centripetal force and is directed towards the center of the circle
- Inertial Mass is a measure of how difficult it is to change the velocity of an object, measured by Inertial Mass = Force / Acceleration
- Newtonβs Third Law states that every action force has an equal and opposite reaction force