Study resources on Kenyaplex

Get ready-made curriculum aligned revision materials

Exam papers, notes, holiday assignments and topical questions – all aligned to the Kenyan curriculum.

Or go directly to:

Class notes Holiday assignments Topical questions Other resources

A measuring cylinder contains 50cm³ of light oil at 0^oC. When a lump of dried ice is placed in the oil, the total volume is...

A measuring cylinder contains 50cm³ of light oil at 0^oC. When a lump of dried ice is placed in the oil, the total volume is 72cm³. Determine the density of the ice.

Answers

Volume of ice = 72-50= 22cm³
Volume of water = 70-50=20cm³
Mass of water = mass of ice = volume x density
= 20cm³ x 1gcm^-3
= 20g
Density of ice = m/v= 20/22 ; = 0.909
= 0.91gcm^-3

sharon kalunda answered the question on April 2, 2019 at 11:49

Answer Attachments

Next: Describe the keyboard layout.

Previous: Describe the procedure of starting up a computer.

View more Physics Questions and Answers | Return to Questions Index

Exams With Marking Schemes

Related Questions

The figure below shows a balloon carrying hydrogen gas 3m³ of density 0.09kgm^-3. The mass of the balloon fabric is 2kg and the density of... (Solved)

The figure below shows a balloon carrying hydrogen gas 3m³ of density 0.09kgm^-3. The mass of the balloon fabric is 2kg and the density of air is 1.25kgm^-3

i) Determine the tension in the string
ii) If the string is suddenly cut, calculate the acceleration of the balloon upwards
iii) What is the maximum mass of the equipment the balloon can lift at a constant velocity

Date posted: April 2, 2019 . Answers (1)
A block of mass 5kg rests on an inclined surface as shown in the diagram below: (Solved)

A block of mass 5kg rests on an inclined surface as shown in the diagram below:

Determine the static friction on the block

Date posted: April 2, 2019 . Answers (1)
Give an example where force is applied and no work is done (Solved)

Give an example where force is applied and no work is done

Date posted: April 2, 2019 . Answers (1)
The graph below shows the variation between force and distance for a boy pushing a concrete block of mass 25kg through a vertically height of... (Solved)

The graph below shows the variation between force and distance for a boy pushing a concrete block of mass 25kg through a vertically height of 12m.

(i) Determine the total work done by the boy within 70m
(ii) How much energy is wasted?
(iii) Give an account for the energy wasted

Date posted: April 2, 2019 . Answers (1)
Figure below shows a wire loop with a string that has been dipped into soap solution. (Solved)

Figure below shows a wire loop with a string that has been dipped into soap solution.

i) Sketch a similar diagram to show the observed effect if the soap film is punctured at X
ii) Explain the observations made in (i) above

Date posted: April 2, 2019 . Answers (1)
The diagram figure below shows a steel ball bearing gently dipped in a viscous liquid contained in a tall cylinder. (Solved)

The diagram figure below shows a steel ball bearing gently dipped in a viscous liquid contained in a tall cylinder.

Name giving their directions the forces acting on the ball bearing as it moves down the cylinder.

Date posted: April 2, 2019 . Answers (1)
State the condition necessary for the law of conservation of linear momentum to hold. (Solved)

State the condition necessary for the law of conservation of linear momentum to hold.

Date posted: April 2, 2019 . Answers (1)
Mercury on a clean glass slide collects into small spherical balls as shown in figure below. Explain why (Solved)

Mercury on a clean glass slide collects into small spherical balls as shown in figure below.Explain why

Date posted: April 2, 2019 . Answers (1)
The figure below shows two blocks of masses M1=1.5kg and M2 = 2.0kg which are in contact on a frictionless table (Solved)

The figure below shows two blocks of masses M1=1.5kg and M2 = 2.0kg which are in contact on a frictionless table

A force F=7N acts on the bodies, determine the force on mass M2

Date posted: April 2, 2019 . Answers (1)
Give one difference between limiting and dynamic forces of friction (Solved)

Give one difference between limiting and dynamic forces of friction

Date posted: April 2, 2019 . Answers (1)
Explain why it is easier to ride a bicycle round a bend on a road if the surface is dry than when it is wet (Solved)

Explain why it is easier to ride a bicycle round a bend on a road if the surface is dry than
when it is wet

Date posted: April 2, 2019 . Answers (1)
The figure below shows a block of mass 25g and density 200kg/m³ submerged beam by means of a thread. A mass of 2g if suspended... (Solved)

The figure below shows a block of mass 25g and density 200kg/m³ submerged beam by means of a thread. A mass of 2g if suspended form the beam as shown in the figure below.

(i) Determine the up thrust force acting on the block.
(ii) Calculate the density of the liquid.

Date posted: April 2, 2019 . Answers (1)
A bubble of air has a diameter of 2.0 mm when it is 0.5m below the water surface of a boiler. Calculate the diameter of the... (Solved)

A bubble of air has a diameter of 2.0 mm when it is 0.5m below the water surface of a boiler.
Calculate the diameter of the bubble as it reaches the surface, assuming that the temperature
remains constant.(Take g = 10Nkg-1 density of water = 103kgm^-3 and atmospheric pressure = 105Mn^-2

Date posted: April 2, 2019 . Answers (1)
A crane lifts a load 500kg through a vertical distance of 4m in 8 seconds. Determine: (Solved)

A crane lifts a load 500kg through a vertical distance of 4m in 8 seconds. Determine:
(i) Work done by the crane
(ii) Power developed by the crane
(iii) Efficiency of the crane given that it is operated by an electric motor rated 2.8Kw

Date posted: April 2, 2019 . Answers (1)
Define work and state its S.I units (Solved)

Define work and state its S.I units

Date posted: April 2, 2019 . Answers (1)
A man uses a block and tackle mechanism of velocity ratio 6 to lift a car engine smoothly through a height of 1 m in... (Solved)

A man uses a block and tackle mechanism of velocity ratio 6 to lift a car engine smoothly through a height of 1 m in 5s. The man applies a force of 300N while the mass of the engine is 120 kg. Determine:
(i) The mechanical advantage of the pulley system.
(ii) its efficiency.

Date posted: April 2, 2019 . Answers (1)
A bicycle has wheels 66 cm in diameter. Its crank wheel has 44 teeth and the rear sprocket 16 teeth. The crank radius is 16.5... (Solved)

A bicycle has wheels 66 cm in diameter. Its crank wheel has 44 teeth and the rear sprocket 16 teeth. The crank radius is 16.5 cm.
(i) Determine the radius of the rear sprocket.
(ii) The bicycle moves when the rear sprocket is made to move. Hence determine the
velocity ratio.

Date posted: April 2, 2019 . Answers (1)
A wheel and axle are used to raise a load of 280N by a force 40N applied to the rim of the wheel. If the radii... (Solved)

A wheel and axle are used to raise a load of 280N by a force 40N applied to the rim of the
wheel. If the radii of the rim and axle are 70cm and 5cm respectively, calculate:
(i) The mechanical advantage
(ii) The velocity ratio
(iii) The efficiency

Date posted: April 2, 2019 . Answers (1)
The graph below shows the potential energy against displacement for a body of mass 80 g. (Solved)

The graph below shows the potential energy against displacement for a body of mass 80 g.

The body oscillates about point R. Calculate the velocity of the body at:
(i) P and T
(ii) Q and S
(iii) at R

Date posted: April 2, 2019 . Answers (1)
State the law of conservation of energy (Solved)

State the law of conservation of energy

Date posted: April 2, 2019 . Answers (1)