Forces Glossary | Young Education

按索引浏览词汇表

特殊 | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | 全部

I

Ideal pulley

A pulley assumed to have negligible mass and friction.

Ideal rope

A theoretical rope with no mass and no stretching.

Ideal string

A string assumed to have negligible mass and no stretching.

impulse

mathematically defined as the product of force and the time over which it acts. Mathematically, it can be expressed as J = FΔt, where F is the force applied to an object, and Δt is the change in time. This equation allows us to quantify the effect of a force on an object's momentum.

Inclined plane

a flat surface set at an angle to the horizontal.

inelastic

momentum is conserved, but kinetic energy is not conserved in this collision

Inelastic collision

A collision in which momentum is conserved but kinetic energy is not conserved as kinetic energy.

Inertia

The tendency of an object to resist changes in its state of motion.

Internal force

A force between objects within the system.

Isolated system

A system experiencing no significant net external impulse during the interaction.