Define pressure. Give its SI unit.
The total force applied per unit area is called pressure.
Mathematically,
Pressure (P) = Force (F) / Area (A)
Its SI unit is pascal (Pa).
What is a syringe? Write its uses.
A syringe is a simple pump consisting of a plunger or piston that fits tightly in a tube that can take in and expel a liquid or gas. Its uses are as listed below: