تمارين أونلاين Phy | Physical measurement

From the basic physical quantities:

From the basic units:

From the derived units:

Which of the following measuring devices can measure the shortest length?

which of the following is used to measure time

…………..is used to measure length

The physical quantities which cannot be expressed by another physical quantity.

The reference of the fundamental units

The unit of electric current intensity is:

The unit of temperature in international metric system is:

A common feature in the French (Gaussian) system, the British system and the metric system is that they all measure

In the international system of units, the ampere is the unit of the ……….

Joule is the unit of: ………………

The standard second is calibrated by the: ……………….

The standard Kilogram is calibrated by the: ……………….

Which of the following is an appropriate symbol for the unit of a quantity found by dividing an area by a volume?

a)m−2           b)m−1          c)m3        d)m          e)m2

unit of a physical quantity is kg. /m.s2 its dimensional formula………..

 a)MLT                b)ML-1T -2 

 c)ML^-1T ²         d)MLT²

What are the dimensions of a quantity that is equal to a force multiplied by a distance?

a)?2?2?2       b)??2?-2   c)??2?2         d)???-2

What are the dimensions of a quantity that is equal to momentum divided by time?

a)?2?2?2      b)??2?-2    c)??2?2             d)???-2

Quantity ?has dimensions of L?-1.Quantity ? has dimensions of ML?-2 What are the dimensions of ?×??

a)?2?2?2        b)??2?-3      c)??2?2         d)???-2