Chapter 12 Part 1 vocab review

The mechanical advantage of a machine without friction. This can be predicted:

• IMA

• AMA

• efficiency

• mechanical advantage

Any device that makes work easier by changing a force:

• machine

• power

• efficiency

• work

SI unit for work, equal to the amount of work that is done when 1 newton of force moves an object over a distance of 1 meter:

• Joule

• Watt

• work

• power

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Number of times a machine multiplies the input force; calculated as the output force divided by the input force:

• force

• work

• mechanical advantage

• power

Use of force to move an object; calculated as force multiplied by distance:

• mechanical advantage

• efficiency

• power

• work

The mechanical advantage in a real situation. Measure the true input force and true output force of the machine.

• power

• efficiency

• IMA

• AMA

Measure of how well a machine reduces friction; calculated as the percent of input work that becomes output work:

• efficiency

• AMA

• IMA

• work

Measure of the amount of work that can be done in a given amount of time

• machine

• power

• efficiency

• work

Si unit for Work:

• force

• newton

• Joule

• Watt