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What happens when an object's density is less than the fluid's density?
The object floats.
What happens when an object is submerged in a fluid?
The fluid exerts an upward buoyant force on the object.
What happens when a spring is stretched or compressed?
The spring exerts a force opposing the displacement, proportional to the displacement (Hooke's Law).
What is the effect of friction on a moving object?
Friction opposes the motion, converting mechanical energy into heat and slowing the object down.
What is the effect of increasing the volume of fluid displaced by an object?
The buoyant force on the object increases.
What is Tension?
The force exerted by a rope, string, or cable when it's pulled taut. It acts along the direction of the rope.
What is Friction?
The force that opposes motion between two surfaces in contact. It can be static (preventing motion) or kinetic (opposing sliding motion).
What is Normal Force?
The force exerted by a surface on an object, acting perpendicular to the surface. It prevents objects from falling through surfaces.
What is Spring Force?
The force exerted by a spring when it's stretched or compressed. It acts to restore the spring to its equilibrium length.
What is Buoyant Force?
The upward force exerted by a fluid on an object that's submerged or floating.
What is Archimedes' Principle?
The buoyant force on an object is equal to the weight of the fluid displaced by the object.
Define the coefficient of friction.
The ratio of the force of friction between two bodies and the force pressing them together.
What are the differences between static and kinetic friction?
Static friction: Prevents motion between surfaces in contact. | Kinetic friction: Opposes the motion of surfaces sliding against each other.
What are the differences between conservative and non-conservative forces?
Conservative forces: Do not convert mechanical energy into other forms (e.g., tension, normal force). | Non-conservative forces: Convert mechanical energy into other forms like heat (e.g., friction).
Compare floating vs. sinking in terms of density.
Floating: Object's density is less than the fluid's density. | Sinking: Object's density is greater than the fluid's density.