Simple Machines

Front

What are the two main components of a pulley?

Back

A pulley consists of a wheel and a rope.

Front

What type of simple machine is an inclined plane?

Back

An inclined plane is a flat surface that is tilted at an angle to help lift objects.

Front

How is work defined in physics?

Back

Work is defined as a force that moves an object over a distance.

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Front

What is a lever and how is it used?

Back

A lever is a simple machine that consists of a rigid bar that pivots around a fixed point (fulcrum) to lift or move loads.

Tags

NGSS.MS-PS2-1

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Front

Can you give an example of a simple machine found in everyday life?

Back

Examples of simple machines include levers, pulleys, inclined planes, screws, wedges, and wheels.

Front

What is the purpose of a screw as a simple machine?

Back

A screw converts rotational motion into linear motion and is used to hold objects together or lift materials.

Front

What is the difference between a fixed pulley and a movable pulley?

Back

A fixed pulley is anchored in place and changes the direction of the force, while a movable pulley moves with the load and reduces the amount of force needed to lift it.

Front

What is an example of a lever in the human body?

Back

The human arm acts as a lever when lifting objects, with the elbow serving as the fulcrum.

Front

What is the mechanical advantage of using an inclined plane?

Back

The mechanical advantage of an inclined plane allows a smaller force to lift a heavier load by increasing the distance over which the force is applied.

Front

What is a wedge and how does it function as a simple machine?

Back

A wedge is a simple machine that is used to split or cut objects by converting a force applied to its blunt end into a force that acts perpendicular to its inclined surfaces.