Describe experiment to determine the relative density of a cork

Describe experiment to determine the relative density of a cork

Answers

Procedure:
1. Select a sinker which is heavy enough to make the cork to sink.
2. Attach the cork and the sinker as follows

3. Record the results obtained as follows
Weight of the sinker in water = W1
Weight of the sinker in water and cork in air = W2
Weight of the sinker and cork in water = W3
Weight of the cork in air = W2 – W1
Upthrust on the cork = W2 – W3

The relative density of the cork in air is determined as follows; d = weight of the cork in air / upthrust on the cork.

---

Mutiso answered the question on October 16, 2018 at 07:06

Next: Imagine that a speaker came to give you a talk on examination dos and dont's,how could you tell that the speaker was anxious.
Previous: Applications of Archimedes principle and relative density

View More Physics Questions and Answers | Return to Questions Index

Exams With Marking Schemes

• Grade 1
• Grade 2
• Grade 3
• Grade 4
• Grade 5
• Grade 6
• Grade 7
• Grade 8
• Grade 9
• PP1
• PP2
• Playgroup
• Form 1
• Form 2
• Form 3
• Form 4

Related Questions

• A wooden block of dimensions 3 cm × 3 cm × 4 cm floats vertically in methylated spirit with 4 cm of its length in...(Solved)
  

  A wooden block of dimensions 3 cm × 3 cm × 4 cm floats vertically in methylated spirit with 4 cm of its length in the spirit. Calculate the weight of the block. (Density of methylated spirit = 8.0 × 10² kgm^-3)

  Date posted: October 16, 2018.  Answers (1)

• Describe experiment to demonstrate the law of flotation (Solved)
  

  Describe experiment to demonstrate the law of flotation

  Date posted: October 16, 2018.  Answers (1)

• A block of metal of volume 60 cm³ weighs 4.80 N in air. Determine its weight when fully submerged in a liquid of density 1,200...(Solved)
  

  A block of metal of volume 60 cm³ weighs 4.80 N in air. Determine its weight when fully submerged in a liquid of density 1,200 kgm^-3.

  Date posted: October 16, 2018.  Answers (1)

• Describe an experiment to demonstrate Archimedes principle(Solved)
  

  Describe an experiment to demonstrate Archimedes principle

  Date posted: October 16, 2018.  Answers (1)

• Describe the applications of centripetal force(Solved)
  

  Describe the applications of centripetal force.

  Date posted: October 16, 2018.  Answers (1)

• Derive an expression for centripetal acceleration(Solved)
  

  Derive an expression for centripetal acceleration.

  Date posted: October 16, 2018.  Answers (1)

• Define the term centripetal force(Solved)
  

  Define the term centripetal force.

  Date posted: October 16, 2018.  Answers (1)

• A wheel of radius 50 cm is rolled through a quarter turn. Calculate (i) The angle rotated in radians (ii) The distance moved...(Solved)
  

  A wheel of radius 50 cm is rolled through a quarter turn. Calculate (i) The angle rotated in radians (ii) The distance moved by a point on the circumference.

  Date posted: October 16, 2018.  Answers (1)

• Define radian(Solved)
  

  Define radian.

  Date posted: October 16, 2018.  Answers (1)

• What is angular motion?(Solved)
  

  What is angular motion?

  Date posted: October 16, 2018.  Answers (1)

• What is circular motion?(Solved)
  

  What is circular motion?

  Date posted: October 16, 2018.  Answers (1)

• Find the power of a concave lens of a focal length 25 cm.(Solved)
  

  Find the power of a concave lens of a focal length 25 cm.

  Date posted: October 15, 2018.  Answers (1)

• Explain the common eye defects and their corrections(Solved)
  

  Explain the common eye defects and their corrections.

  Date posted: October 15, 2018.  Answers (1)

• Explain the uses of lenses on optical devices(Solved)
  

  Explain the uses of lenses on optical devices

  Date posted: October 15, 2018.  Answers (1)

• Experiment to determine the focal length of a converging lens using the lens formula(Solved)
  

  Experiment to determine the focal length of a converging lens using the lens formula

  Date posted: October 15, 2018.  Answers (1)

• The lens of a slide projector focuses on an image of height 1.5m on a screen placed 9.0 m from the projector. If the height...(Solved)
  

  The lens of a slide projector focuses on an image of height 1.5m on a screen placed 9.0 m from the projector. If the height of the picture on the slide was 6.5 cm, determine, (a) Distance from the slide (picture) to the lens (b) Focal length of the lens

  Date posted: October 15, 2018.  Answers (1)

• The focal length of a converging lens is found to be 10 cm. How far should the lens be placed from an illuminated object to...(Solved)
  

  The focal length of a converging lens is found to be 10 cm. How far should the lens be placed from an illuminated object to obtain an image which is magnified five times on the screen?

  Date posted: October 15, 2018.  Answers (1)

• An object is placed 12 cm from a converging lens of focal length 18 cm. Find the position of the image(Solved)
  

  An object is placed 12 cm from a converging lens of focal length 18 cm. Find the position of the image

  Date posted: October 15, 2018.  Answers (1)

• An object 0.05 m high is placed 0.15 m in front of a convex lens of focal length 0.1 m. Find by construction, the position,...(Solved)
  

  An object 0.05 m high is placed 0.15 m in front of a convex lens of focal length 0.1 m. Find by construction, the position, nature and size of the image. What is the magnification?

  Date posted: October 15, 2018.  Answers (1)

• A horizontal pipe of cross-sectional area 50 cm² carries water at the rate of 0.20 litres per second. Determine the speed; a) Of the speed of...(Solved)
  

  A horizontal pipe of cross-sectional area 50 cm² carries water at the rate of 0.20 litres per second. Determine the speed;
  a) Of the speed of water in the pipe.
  b) When the tube narrows to 20 cm² at another point.

  Date posted: October 12, 2018.  Answers (1)