All Flashcards
What is a vector quantity?
A quantity with both magnitude and direction.
Define contact force.
Force that arises from physical contact between objects, resulting from interatomic electric forces.
What is a free-body diagram?
A visual representation showing all forces acting on an object or system.
Define normal force.
The force exerted by a surface perpendicular to the contact area.
What is tension force?
The force transmitted through a rope, string, or cable when it is pulled tight by forces acting from opposite ends.
What is friction force?
The force that opposes motion between surfaces in contact.
What is the difference between static and kinetic friction?
Static friction: Opposes the start of motion. Kinetic friction: Opposes motion between surfaces already in relative motion.
Differentiate between weight and normal force.
Weight: Force due to gravity acting on an object. Normal Force: Force exerted by a surface perpendicular to the contact area, counteracting the component of the weight perpendicular to the surface.
What is a vector quantity?
A quantity with both magnitude and direction.
Define contact force.
A force resulting from the interaction of objects touching each other.
What is a free-body diagram?
A visual representation of all forces acting on a single object or system.
Define gravitational force (weight).
The force exerted on an object due to gravity.
What is normal force?
The force exerted by a surface on an object resting on it, perpendicular to the surface.
Define tension.
The force exerted by a rope or string when it is pulled tight.