What is an inclined plane?

What is an inclined plane?

• A. A straight vertical surface
• B. A curved track
• C. A rotating cylinder
• D. A slanting surface connecting a lower level to a higher level

Answer: (D)

An inclined plane is a flat surface tilted relative to the horizontal, used to raise or lower a load by moving it along a longer, shallower path rather than straight up. This means you trade extra distance for less force to lift something. The description of a slanting surface connecting a lower level to a higher level fits this idea exactly, since a ramp provides that gradual rise from one height to another. The other options describe surfaces or devices that aren’t ramps: a straight vertical surface is upright, not inclined; a curved track isn’t a flat ramp; a rotating cylinder is a drum, not a slanted plane.

An inclined plane is a flat surface tilted relative to the horizontal, used to raise or lower a load by moving it along a longer, shallower path rather than straight up. This means you trade extra distance for less force to lift something. The description of a slanting surface connecting a lower level to a higher level fits this idea exactly, since a ramp provides that gradual rise from one height to another. The other options describe surfaces or devices that aren’t ramps: a straight vertical surface is upright, not inclined; a curved track isn’t a flat ramp; a rotating cylinder is a drum, not a slanted plane.