Floatation involves a state where up thrust/weight of displaced fluid is equal to the weight of
object. For sinking, the weight of object is greater than the up thrust;
gideon1 answered the question on September 28, 2017 at 14:39
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State two conditions that must be met for a gas to obey pressure law.
(Solved)
State two conditions that must be met for a gas to obey pressure law.
Date posted:
September 28, 2017
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Answers (1)
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State two properties which makes the oil suitable for use in machines
(Solved)
State two properties which makes the oil suitable for use in machines
Date posted:
September 28, 2017
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Answers (1)
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Give a reason why ink is most likely to ooze out of a pen when one is up in a plane.
(Solved)
Give a reason why ink is most likely to ooze out of a pen when one is up in a plane.
Date posted:
September 28, 2017
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Distinguish between velocity and speed.
(Solved)
Distinguish between velocity and speed.
Date posted:
September 28, 2017
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State any two ways of minimizing heat gains to a substance placed in a vacuum flask.
(Solved)
State any two ways of minimizing heat gains to a substance placed in a vacuum flask.
Date posted:
September 28, 2017
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Answers (1)
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State two factors that lowers the freezing point of ice.
(Solved)
State two factors that lowers the freezing point of ice.
Date posted:
September 28, 2017
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Explain why ice skaters use sharp – edged shoes to slide on ice.
(Solved)
Explain why ice skaters use sharp – edged shoes to slide on ice.
Date posted:
September 28, 2017
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Answers (1)
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A body is initially in motion. If no external force acts on the body, describe the subsequent motion.
(Solved)
A body is initially in motion. If no external force acts on the body, describe the subsequent motion.
Date posted:
September 28, 2017
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Answers (1)
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Apart from friction, name another factor that reduces efficiency in machines.
(Solved)
Apart from friction, name another factor that reduces efficiency in machines.
Date posted:
September 28, 2017
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Answers (1)
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When does total internal reflection take place.
(Solved)
When does total internal reflection take place.
Date posted:
September 28, 2017
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Define Critical angle.
(Solved)
Define Critical angle.
Date posted:
September 28, 2017
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Answers (1)
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Explain how a transverse stationary wave is generated using a string.
(Solved)
Explain how a transverse stationary wave is generated using a string.
Date posted:
September 28, 2017
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Answers (1)
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Explain why charged conductor mounted on an insulator will lose its charge after some time.
(Solved)
Explain why charged conductor mounted on an insulator will lose its charge after some time.
Date posted:
September 28, 2017
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Answers (1)
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State the mode by which heat is lost from a black can filled with hot water.
(Solved)
State the mode by which heat is lost from a black can filled with hot water.
Date posted:
September 28, 2017
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Answers (1)
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What is elastic collision.
(Solved)
What is elastic collision.
Date posted:
September 28, 2017
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Answers (1)
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Distinguish between evaporation and boiling.
(Solved)
Distinguish between evaporation and boiling.
Date posted:
September 28, 2017
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Explain how air pollution by smoke from a factory chimney can be minimized using a charged object.
(Solved)
Explain how air pollution by smoke from a factory chimney can be minimized using a charged object.
Date posted:
September 28, 2017
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Answers (1)
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Explain why water pipe bursts are common in countries near the poles
(Solved)
Explain why water pipe bursts are common in countries near the poles
Date posted:
September 28, 2017
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Answers (1)
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State any two factors that affect the earth's gravitational force.
(Solved)
State any two factors that affect the earth's gravitational force.
Date posted:
September 28, 2017
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Answers (1)
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State three factors that affect the pitch of a stretched string.
(Solved)
State three factors that affect the pitch of a stretched string.
Date posted:
September 28, 2017
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Answers (1)