Some students observe drops of liquid falling from a funnel in a chemistry laboratory.
The students measure the time for 80 drops to fall from the funnel. The total time recorded is 64 s.
Calculate the average time interval between two consecutive drops.
The students collect some drops of the liquid.
Name a common laboratory instrument that is suitable for measuring the volume of the collected liquid accurately.
In a similar experiment, a student collects a total mass of 0.45 kg0.45\text{ kg}0.45 kg of liquid.
Calculate the weight of this liquid. (Take the gravitational field strength g=10 N/kgg = 10\text{ N/kg}g=10 N/kg).
164 exam-style questions on CIE IGCSE Physics Physical quantities and measurement techniques, covering Physical quantities and measurement techniques. Each one has a worked solution and a mark scheme showing where the marks go.