Work and Machines

Front

What is a combination of two or more simple machines called?

Back

Compound Machine

Front

What is the primary purpose of machines?

Back

To make work easier.

Front

What type of machine does work with just one movement?

Back

Simple Machine

Front

What is a device that changes the force or increases the motion from work?

Back

Machine

Front

What two conditions must be met for work to be done?

Back

An object must move and must move in the direction of the force applied.

Front

What is the definition of work in physics?

Back

Work is done when a force causes an object to move in the direction of the force.

Front

What is the formula for calculating work?

Back

Work = Force x Distance.

Front

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

Back

A lever is a rigid bar that rotates around a fixed point (fulcrum) to lift or move loads.

Front

What is the role of a pulley in a machine?

Back

A pulley changes the direction of the force applied to lift an object.

Front

What is mechanical advantage in the context of machines?

Back

Mechanical advantage is the ratio of the output force to the input force in a machine.