Conceptual Physics

Front 1

Mass

Back 1

Quantity of matter in an object, the measurement of the inertia or sluggishness that an object exhibits in response to any effort made to start it, stop it, or change in any way its state of motion, a form of energy.

Front 2

Friction

Back 2

Force that acts to resist the relative motion (or attempted motion) of objects or materials that are in contact.

Front 3

Sliding Friction

Back 3

Contact force produced by the rubbing together of the surface of a moving object with the material over which it slides

Front 4

Inversely

Back 4

When two values change in opposite directions, so that if one increases and the other decreases by the same factor, they are said to be inversely proportional to each other.

Front 5

Kilogram
(kg)

Back 5

Fundamental SI unit of mass. It is equal to 1000 grams. One kilogram is very nearly the amount of mass in 1 liter of water at 4°C

Front 6

Static Friction

Back 6

Force between two objects at relative rest by virtue of contact that tends to oppose sliding

Front 7

kilo

Back 7

Prefix that means thousand, as in killowatt or kilogram

Front 8

N

Back 8

Abbreviation for Newton

4.448 N = 1 lb.

Front 9

Fluid

Back 9

anything that flows; in particular any liquid or gas.

Front 10

Air Resistance

Back 10

Friction or drag that acts on something moving through air.

Front 11

kg

Back 11

Abbreviation for kilogram
1000 g = 2.205 lb

Front 12

Free Fall

Back 12

Motion under the influence of gravity only

Front 13

Force

Back 13

Any influence that tends to accelerate an object, a push or a pull, measured in newtons. Force is a vector quantity.

Front 14

Newton
(N)

Back 14

SI unit of force. One newton is the force applied to a 1-kilogram mass that will produce an acceleration of 1 meter per second per second.

Front 15

Terminal Speed

Back 15

Speed attained by an object wherein the resistive forces, often air resistance, counterbalance the driving forces, so motion is without acceleration.

Front 16

Volume

Back 16

Quantity of space an object occupies.

Front 17

Acceleration Due To Gravity
(g)

Back 17

Acceleration of a freely falling object. Its value near Earth's suirface is about 9.8 m/s each second.

Front 18

Terminal Velocity

Back 18

Terminal speed together with the direction of motion
(down for falling objects)

Front 19

Weight

Back 19

The force that an object exerts on a supporting surface
(or if suspended, in a supporting string) often but not always, due to the force of gravity.