Unit 1- Physical Quantity Flashcards
1
Q
Define
Physical Quantity
A
Property of an object that can be measured or calculated from other physical quantity.
2
Q
The International System of Units
A
A system of measurement based on base units.
3
Q
Density
A
Kg/m3
4
Q
Acceleration
A
m/s2
5
Q
Instruments which are used to measure mass are known as ______________.
A
Balances
6
Q
Types of balances.
A
- Top pan balance
- Platform balance
- Table balance
- Spring balance
- Electronic balance
7
Q
For small mass we use _________.
A
Gram (g)
8
Q
For big mass we use _________ & __________.
A
Quintal and ton.
9
Q
___________ refers to how close a measurement is to its known value.
A
Accuracy
10
Q
__________ refers to how close two or more measurements are to each other regardless of accuracy.
A
Precision
