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Water wets glass tubes because the adhesive forces between the glass molecules and water molecules are greater than the cohesive forces between the water molecules.
lendiritu answered the question on November 24, 2017 at 08:21
- State two applications of capillary action(Solved)
State two applications of capillary action.
Date posted: November 24, 2017. Answers (1)
- State the first and the second Newton’s laws of motion(Solved)
State the first and the second Newton’s laws of motion
Date posted: November 23, 2017. Answers (1)
- List the areas the areas where total internal reflection is applied.(Solved)
List the areas the areas where total internal reflection is applied.
Date posted: November 23, 2017. Answers (1)
- State the laws of refraction and refractive...(Solved)
State the laws of refraction and refractive index
Date posted: November 23, 2017. Answers (1)
- Define the term refraction (Solved)
Define the term refraction
Date posted: November 23, 2017. Answers (1)
- State the equations used for constant acceleration used under motion due to gravity (free fall)(Solved)
State the equations used for constant acceleration used under motion due to gravity (free fall)
Date posted: November 23, 2017. Answers (1)
- Define the following terms
a. Velocity
b. Acceleration
(Solved)
Define the following terms
a. Velocity
b. Acceleration
Date posted: November 23, 2017. Answers (1)
- Calculate the distance in metre traveled by motor cycle moving with a uniform speed of 120 km/h in 50 seconds.(Solved)
Calculate the distance in metre traveled by motor cycle moving with a uniform speed of 120 km/h in 50 seconds.
Date posted: November 23, 2017. Answers (1)
- A vehicle travels through a distance of 20m in 10 seconds. Then it stops in town for 30s and finally covers another distance of 100...(Solved)
A vehicle travels through a distance of 20m in 10 seconds. Then it stops in town for 30s and finally covers another distance of 100 m in 30s. Calculate the average speed.
Date posted: November 23, 2017. Answers (1)
- What is meant by the following terms: a. displacement b. speed c. average speed(Solved)
What is meant by the following terms:
a. displacement
b. speed
c. average speed
Date posted: November 23, 2017. Answers (1)
- The study of motion is divided into two parts. Name them(Solved)
The study of motion is divided into two parts. Name them
Date posted: November 23, 2017. Answers (1)
- State any two errors that are likely to be encountered with using a metre rule to measure length.(Solved)
This is under Measurement.
Date posted: November 21, 2017. Answers (1)
- Give reasons why mercury is prefered to water as a barometric liquid.(Solved)
This is under Measurement of Pressure.
Date posted: November 21, 2017. Answers (1)
- What are the disadvantages of using alcohol as a thermometric liquid?(Solved)
This is under thermal expansion.
Date posted: November 21, 2017. Answers (1)
- Name the branches of Physics.(Solved)
This is under Introduction to Physics.
Date posted: November 21, 2017. Answers (1)
- State three ways in which an electromagnet could be made more powerful.(Solved)
This is under electricity and magnetism.
Date posted: November 21, 2017. Answers (1)
- Explain why the feet feel colder when a person stands on a cemented floor than when on a wooden floor.(Solved)
This is under Heat transfer.
Date posted: November 21, 2017. Answers (1)
- Explain why luggage compartments are situated in the lower parts of buses.(Solved)
This is under equilibrium and center of gravity.
Date posted: November 21, 2017. Answers (1)
- Explain why a glass window soon becomes dusty when wiped dry with a dry cloth on a dry day.(Solved)
This is under Electrostatics.
Date posted: November 21, 2017. Answers (1)
- Explain how heat loss through conduction and radiation is minimized in a vacuum flask(Solved)
Explain how heat loss through conduction and radiation is minimized in a vacuum flask.
Date posted: November 21, 2017. Answers (1)