Forces 1 Flashcards
What are the different types of forces?
Weight (gravitational force), Friction, Drag, Air resistance, Tension (elastic force), Electrostatic force, Magnetic force, Thrust (driving force), Contact force
How do you identify forces acting on an object?
By observing the object’s interaction with other objects and its environment (e.g., gravity, friction, tension). Forces can be represented using a free-body diagram.
What is a free-body diagram?
A free-body diagram is a sketch that shows all the forces acting on an object, represented by arrows pointing in the direction of each force.
What is Newton’s first law of motion?
An object remains at rest or continues to move in a straight line at constant speed unless acted on by a resultant force.
How can a force change the velocity of an object?
A force can change an object’s velocity by altering its speed or direction of motion.
How do you determine the resultant of forces acting along the same straight line?
Add forces acting in the same direction and subtract forces acting in opposite directions to find the resultant force.
What is the equation for resultant force?
Resultant force = Mass × Acceleration or F = ma
What is Newton’s third law of motion?
When object A exerts a force on object B, object B exerts an equal and opposite force on object A.
What does Newton’s third law describe?
It describes pairs of forces of the same type acting on different objects, which are equal in magnitude and opposite in direction.
