PhySci Work, Power, Energy, Machines

Front

What is a simple machine?

Back

A device that changes the direction or magnitude of a force, making work easier.

Front

Name the six types of simple machines.

Back

Lever, Inclined Plane, Wedge, Screw, Pulley, Wheel and Axle.

Front

What is a lever?

Back

A simple machine that consists of a rigid bar that pivots around a fixed point called the fulcrum.

Front

What are the three classes of levers?

Back

1st Class, 2nd Class, and 3rd Class.

Front

What is mechanical advantage?

Back

The ratio of the output force to the input force in a machine, indicating how much a machine multiplies force.

Front

What is work in physics?

Back

Work is done when a force is exerted on an object and the object moves in the direction of the force.

Front

What is the formula for calculating work?

Back

Work = Force x Distance.

Front

What is power in physics?

Back

Power is the rate at which work is done or energy is transferred.

Front

What is the formula for calculating power?

Back

Power = Work / Time.

Front

What is an inclined plane?

Back

A flat surface that is tilted at an angle to help lift objects with less effort.