Force and Motion Vocabulary

Mechanical Advantage

• A measure of the force amplification achieved by using a tool, mechanical device or machine system.

• The ratio of the force produced by a machine to the force applied to it, used in assessing the performance of a machine

• Humans to perform tasks much easier in terms of the force they need to apply, but must always obey the conservation of energy

• The advantage gained by the use of a mechanism in transmitting force;

Tags

NGSS.MS-PS2-2

Acceleration

• The rate of change of velocity per unit of time

• Increase in the rate or speed of something

• A vehicle's capacity to gain speed within a short time

Speed

• The rate at which someone or something is able to move or operate

• The time rate at which an object is moving along a path

• Move quickly

• Each of the possible gear ratios of a bicycle or motor vehicle

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NGSS.MS-PS3-1

Reference Point

• A basis or standard for evaluation, assessment, or comparison; a criterion

• A point in space, regardless of the type of geometry that you are using that stays still and does not move

• A place or object used for comparison to determine if something is in motion

• A point used to find or describe the location of something

Velocity

• The rate at which the position changes

• The rate and direction of an object's movement.

• The speed of something in a given direction.

• quickness of motion or action

Net Force

• The vector sum of all the forces that act upon an object.

• Push or pull upon an object resulting from the object's interaction with another object.

• The sum of all the forces acting on an object.

• The combined effect (the sum) of all the pushing and pulling forces actually acting on the object.

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NGSS.MS-PS2-2

Unbalanced Force

• Forces applied to an object in opposite directions that are not equal in size

• A force that causes a change in an object's state of motion.

• One force is greater than another, the forces are not balanced

• Acting on an object which does not change the state of rest or of uniform motion

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NGSS.MS-PS2-2

Balanced Force

• When forces are balanced, there is no change in motion

• When two forces act upon each other in opposite directions, and they are both the same size.

• Equal in size and opposite in direction

• Occurs when objects change in motion and can happen in two different ways.

When two objects interact, they apply forces to each other of equal magnitude and opposite direction.

• 1st Law of Motion

• 2nd Law of Motion

• 3rd Law of Motion

• 4th Law of Motion

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NGSS.MS-PS2-1

A body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force

• 1st Law of Motion

• 2nd Law of Motion

• 3rd Law of Motion

• 4th Law of Motion