In everyday physical interactions, distinct forces and kinematic principles govern how objects start, change, or cease their motion. Which pairs correctly match each physical observation on the left with its primary governing principle on the right?
- A metal toolbox sliding across a steel deck gradually slows down and stops.Frictional force acting parallel to surfaces in contact to oppose relative motion
- A standing passenger lurches forward when a transport bus suddenly applies its brakes.Inertia resisting a change in the body's existing state of motion
- A dropped wrench accelerates straight down toward the workshop floor.Gravitational attraction pulling objects toward Earth's center
- A fully loaded cargo cart requires more braking force to stop than an empty cart traveling at the same speed.Momentum increasing directly with greater mass at a given velocity
Cevap
The correct pairings match the sliding toolbox with frictional force, the lurching passenger with inertia, the falling wrench with gravitational attraction, and the harder-to-stop loaded cart with momentum.
Each observation directly matches the defining characteristic of its governing principle: surface resistance causing slowing is friction, resistance to change in motion is inertia, downward acceleration is gravity, and mass-dependent difficulty in stopping a moving object is momentum.
Adım Adım Çözüm
Anahtar Kavram
Fundamental mechanical principles including friction, inertia, gravity, and momentum governing the motion and interaction of objects.
Tahmini Süre:45s