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# Form 1 Physics Measurement 1 Video Questions and Answers

Form 1 Physics Measurement 1 Video Questions and Answers.

In this session, several topical questions on Physics Form 1 measurement 1 will be solved.

Lessons (**36**)

- 1.
The figure below shows a measuring cylinder, which contains water initially at level A. A solid of mass 11g is immersed in the water, the level rises to B.
Determine the density of the solid. (Give your answer to 1 decimal point)

2m 40s - 2.
The figure below shows a fencing post whose length is being measured using a strip of a measuring tape. Use the information to answer the question below. State the accuracy of the tape.

1m 4s - 3.
The figure below shows a fencing post whose length is being measured using a strip of a measuring tape. Use the information to answer the question below. What is the length of the post?

1m 34s - 4.
The figure shows part of a measuring cylinder calibrated in #cm^3# containing water level is indicated. Some #3.0 cm^3# of water is added into the cylinder. Indicate on the diagram the new level of water.

1m 30s - 5.
The figure shows a burette partly filled with a liquid. The burette was initially full to the mark. If the quantity of the liquid removed has a mass of 22g, determine the density of the liquid.

1m 59s - 6.
The figure below shows a measuring cylinder containing some liquid. Another #5cm^3# of the liquid is added into the cylinder. Indicate on the diagram the new level of the liquid.

1m 32s - 7.
The figure below shows the reading on a burette after 55 drops of a liquid have been used. If the initial reading was at zero mark, determine the volume of one drop.

1m 42s - 8.
The figure shows the change in volume of water in a measuring cylinder when an irregular solid immersed in it.
Given that the mass of the solid is 567g, determine the density of the solid in #gcm^-3# (Give your answer correct to 2 decimal places).

2m 9s - 9.
A drug manufacture gives the mass of the active ingredient in a tablet as 5mg . Express this quantity in kilograms and in standard form.

1m 48s - 10.
The mass of equal volumes of a certain liquid and of water were found to be #m_l# and #m_w# respectively. Given that the density of water is #1gcm^-3#, express the density, #rho# of the liquid in terms of #m_l# and #m_w#. (show your work)

3m 9s - 11.
In an experiment to measure the density of a liquid, a student filled a burette with liquid to the #0cm^3# mark. The figure shows a section of the burette showing the level of the liquid after 54.5g of the liquid had been run out.
Determine the density of the liquid.

2m 7s - 12.
A stopwatch started 0.50s after the start button was pressed. The time recorded using the stop watch for a ball bearing falling through a liquid was 2.53s. Determine the time of fall.

1m 31s - 13.
In an experiment to determine the density of sand using a density bottle, the following measurements were recorded: Mass of empty density bottle=43.2 g Mass of density bottleful of water=66.4g Mass of density bottle with some sand =67.5g
Mass of density bottle with the sand filled up with water=82.3g Use the above data to determine the: (a) Mass of water that completely filled the bottle

9m 0s - 14.
The figure shows a metal bolt which is threaded. Explain how a metre rule can be used to measure the pitch ( distance between
adjacent peaks) of the threading.

3m 25s - 15.
The figure below shows a measuring cylinder containing some water. Determine the reading on the measuring cylinder, after three drops of water each of volume #0.6 cm^3# are added.

2m 5s - 16.
A student measured the length of a wire four times using a metre rule and obtained the following readings; 18.6cm, 18.5cm, 18.6cm, and 18.6cm. Determine the length the student should record.

2m 2s - 17.
State the reason why it is not correct to quote the weight of solid objects in kilograms.

1m 20s - 18.
Figure (a) shows the initial reading of the burette used to measure the volume of oil. After 50 drops of the oil were run out, the final reading was as shown in figure (b). Determine the volume of one drop.

2m 33s - 19.
In an experiment to determine the density of liquid R, a student obtained the following data: - Mass of an empty density bottle =55.0g - Mass of the density bottle+water =80.0g - Mass of the density bottle + liquid R =70.0g. Determine the density of the liquid R. (density of water is #1000kgm^3#)

4m 46s - 20.
The figure shows the position of a studentâ€™s eye while measuring the length of wooden block using a metre rule.
Determine the length of the block as viewed by the student.

0m 57s - 21.
Outline how you would measure the circumference of a beaker and test-tube using a thread.

2m 2s - 22.
Describe how you would measure the diameter of a tennis ball.

1m 28s - 23.
Define the mass and show how it can be measured.

0m 34s - 24.
The mass of a lump of gold remains constant wherever it may be shifted to. Explain.

0m 47s - 25.
A length 550 cm of thin thread wraps around a cylinder exactly 25 times. Calculate the circumference and the radius of the cylinder. (Take #pi=22/7#)

2m 17s - 26.
The water level in a burette is 30 #cm^3#. If 55 drops of water fall from a burette and the average volume of one drop is 0.12#cm^3#, what is the final water level in the burette?

1m 38s - 27.
Convert the following:
(a) 1 000 kg into g.
(b) 1 000 000 m into km.
(c) 0.0000037 kg to mg.
(d) 0.00000125 m to mm.

3m 35s - 28.
If a ream of 500 papers weighs 2.5 kg, find the mass of single sheet in:
(a) kg.
(b) mg.

1m 27s - 29.
Water has a density of 1 000 #kgcm^(-3)#. What does this mean? What is its density in#gcm^(-3)#?

1m 52s - 30.
In finding the density of liquid, why is the method of using a density bottle more accurate than the one of using a measuring cylinder?

0m 48s - 31.
What mass of lead has the same volume as 1 600 kg of alcohol? (density of alcohol=0.79#gm^(-3)#,density of lead=11.3#gm^(-3)# )

2m 16s - 32.
An empty density bottle has a mass of 25 g. Its mass is 50 g when full of water and 45 g when full of another liquid. What is the density of the liquid in #kgm^(-3)#?

3m 53s - 33.
Describe an experiment to find the density of copper turnings using a density bottle and kerosene.

6m 6s - 34.
The mass of a density bottle is 20.0 g when empty, 70.0 g when full of water and 55.0 g when full of a second liquid. Calculate the density of the liquid.

2m 56s - 35.
The mass of a density bottle of volume #50 cm^3# is 10.0 g when empty. Aluminium turnings are poured into the bottle and the total mass is 60.0 g. Water is then added into the turnings till the bottle is full. If the total mass of the bottle and its contents is 90.0 g, calculate the density of the aluminium turnings.

4m 37s - 36.
1800 #cm^3# of fresh water of density 1000 #kgm^(-3)# is mixed with 2200 #cm^3# of sea water of density 1025 #kgm^(-3)#. Calculate the density of the mixture.

3m 2s