force- a push or a pull room

force- a push or a pull context: A force is applied to a desk to push it across the room

McLaughlinSusan Saturday, September 7, 2013 1:04:13 PM Eastern Daylight Time

motion- an act in which one object’s distance from another is changing.

context: You are in motion while running a race.


speed- the distance traveled divided by the time it takes to travel that distance.

context: A wave moving through water moves at a different speed than a wave moving through air.


direction- a course along which someone or something moves.


gravity- the force that pulls objects towards each other context: The force of gravity gives you weight.


distance- an amount of space between two things or people.


acceleration- the change in an objects speed or direction over time context: If an object speeds up, the acceleration is in the direction that the object is moving.


friction- a force that acts to oppose sliding between two surfaces that are touching context: Rubbing your hands together to create friction.


lift- an upward force definition-Large-winged planes provide more lift to carry heavy loads.


relative speed- the speed between two objects in motion.


mass- the amount of matter in an object context: An object’s mass is always the same, but an objects weight depends on gravity


momentum- a measure of how hard it is to stop a moving object context: A seatbelt stops your momentum in a car.


pattern- a plan, diagram, or model to be followed in making things.


elapsed time- the time that elapses while an event is occurring


push- exert force on

(someone or something), typically with one's hand


pull- using force to move something toward you.


change- to make or become different


object- a material thing that can be seen or touched


force- a push or a pull room

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