What is physics physics π€
Physics is the study of energy and matter.
What is energy
Energy is the ability to do work πͺ.
What is matter
Matter is anything with mass and volume.
What is a physician
A physician is someone who's learning physics.
What a Nuclear energy
A nuclear energy refers to radiation.
What are physical qualities
are any things which have measurable features.
E.g; the mass of a stone.
Types of physical qualities are basic/fundamental qualities
Derived qualities and Dimensionless qualities
Which are the basic qualities
Which are the Derived qualities
Determine the Diamensionest quantities
What's the quantity fr time
Quantity fr time is stop wactch and stop clock β±.
What's the quality fr mass
Balance is the quantity fr mass(eg. Beam , liver , top-pan,.)
What are the instruments of length
Are membre role , measuring tape, and micro membre
Instruments of volume
they are Measuring cylinder, beaker,pipette,conical flax and burette
What are the Instruments of Weight
Spring balance
What are the instruments of temperature
They are thermometer
What are the instruments of presure
What are the instruments of electrical resistance π€
What are the instruments of voltage
What are the measurements of the electric current
What are sensitivity, rang and accuracy used for
Sensitivity, accuracy and range are used for when an instrument when an instrument has to be selected to measure a certain quantity.
Sensitivity
It measures the responses of an instrument to small changes.
What does Accuracy measure
It measures how close the experiment value is to the theoretical value.
What does range measure
It measures the size of the intervals between the maximum and maximum of the quantity that the instrument can measure.
What a scale?
It is the set of marks or graduations at intervals at a measuring instrument.
What are the two types of scales
Linear scale (they are the ones which marks the graduations and are evenly spaced. )
Non linear scale(one whose marks are equally or unevenly spaced)
Eg. Of measuring instruments with linear scales;
Meter ruler, beaker,spring balance, measuring cylinder
Eg. Of measuring instruments with non linear βscales ;
Are conical flask
Analogies clock β°
Calibration is the process of setting or checking the graduation on the scale of a measuring instrument by comparing it with a standard or some universally accepted reference.
an Analogies scale
the output signal variescontinuously with the input signal. (It'smeasurementis given by a pointer.)
What's an Examples of an analogue clock:
A clock β°
An ammeter
What's a digital scale β π€
The output signal does not vary continuous with the input signal, but jumps from one value to next π.
An example of a digital clock β°
A digital watch β
What are the examples of analogue scales β
What's a miniscus
It's the bottom of the curve of the liquid in the measuring cylinder.
What's a parallax error π€
It's the apparent motion of objects in front of the eyes when the Position changes. (It's also a very common source of error inscale reading.)
What are significant figures π€
They are all natural numbers from (1-9),zeros are only significant when they are between the significant numbers.
Last changed4 months ago