Physics Quiz

Basics of Physics

Precision

the degree of exactness of a measurement

Accuracy

a description of how close a measurement is to the actual or accepted value

Uncertainty/Tolerances

expresses the confidence in a measurement, statistically, percentage, specific values, etc

SI basics (1)

meter (m)

SI basics (2)

kilogram (kg)

SI basics (3)

second (s)

SI basics (4)

ampera (A)

SI basics (5)

kelvin (K)

SI basics (6)

mole (mol)

SI basics (7)

candela (cd)

Newton (N)

measure for force

Joule (J)

a unit of energy

Watt (W)

a unit of power

Hertz (Hz)

frequency

Frame of reference

point, usually attached to the earth, that measurements can be made from

• used to determine if object is moving

Motion in ____ dimension is simplest form of motion

1

Distance

total length of travel

Displacement

straight line from start point to end point

Speed

a measure of distance that something moves per unit (speed is quantity only- scalar)

Velocity

speed with direction (velocity is a vector- quantity and direction)

Instantaneous velocity (what invention)

speedometer

Average velocity

total displacement divided by time interval of travel

The steeper the slope

the faster the acceleration