Force And Motion

Front 1

speed

Back 1

How fast an object’s position changes with time at any given moment. It is the rate of motion

Front 2

direction

Back 2

a line leading to a place or point; example: "he looked the other direction"; "didn't know the way home"...or another example would be: the spatial relation between something and the course along which it points or moves; "he checked the direction and velocity of the wind"

Front 3

position

Back 3

the location of an object (where is the object?)

Front 4

motion

Back 4

change in an object’s position over time. (has 2 parts, distance and direction)

Front 5

force

Back 5

any push or pull from one object to another. (example: push, pull, and lifts)

Front 6

friction

Back 6

a force that opposes the motion of one object moving past another. (example: rubbing hands together)

Front 7

magnetism

Back 7

ability of an object to push or pull on another object that has the magnetic property. (example: magnets have north and south poles)

Front 8

gravity

Back 8

Every object in the Universe attracts every other object in the universe. This invisible force for masses to move toward each other is called Gravity.

Front 9

change of force

Back 9

If there were no forces, such as friction or drag, an object in motion (Newton’s First Law) could travel forever in a straight line, objects in space do that..on Earth, friction and drag often act as un unbalance force to bring objects to rest, thus changing the force.

Front 10

change in mass

Back 10

-(Newton’s Second Law) think of two boats: using more rowers in one boat will increase the force and increase acceleration. However, if you just add extra people and they are not rowing, you are just adding/increasing mass and that will decrease acceleration.

Front 11

rate of motion

Back 11

the speed of an object can change, (speed=distance/time)

Front 12

direction of motion

Back 12

measurement of speed and direction of a moving object. (example: how fast and how far)

Front 13

texture of surfaces

Back 13

smooth surfaces usually have less friction than rough surfaces. (example: for a slide to be fast, the surface must be very slippery).

Front 14

surface area

Back 14

is the measure of how much exposed area any two- or three-dimensional object has.

Front 15

lubrication

Back 15

A substance, such as grease or oil that reduces friction when applied as a surface coating to moving parts.