Jamani wadau Kuna yeyote mwenye notes Za phyisics a-level anitafute
Kwa mawasiliano haya
Sumu/whatsapp:0713879032
Email:zagaloemanuel610@gmail.com
]]>
Pakua syllabus ya physics advanced level
Jamani wadau Kuna yeyote mwenye notes Za phyisics a-level anitafute
Kwa mawasiliano haya
Sumu/whatsapp:0713879032
Email:zagaloemanuel610@gmail.com
]]><![CDATA[Basic And Applied Mathematics]]>
https://myelimu.com/thread-basic-and-applied-mathematics
Sun, 12 Jul 2015 10:26:11 +0000Elda Meshy]]>https://myelimu.com/thread-basic-and-applied-mathematics
]]>
]]><![CDATA[Various Questions For Form One]]>
https://myelimu.com/thread-various-questions-for-form-one
Mon, 23 Mar 2015 07:57:30 +0000MyElimu]]>https://myelimu.com/thread-various-questions-for-form-one
Multiple choice questions.
[list=lower-roman]
[*]When using measuring cylinder one precaution to be taken is
[/list]
Check for zero error
Look at the meniscus from below the level of the water surface.
Position the eye in line with the base of the meniscus.
Obtain more readings by looking from more than one direction.
1. Choose and write the letter of the most correct answer.
(i) A physical quantity that cannot be derived from other physical quantities is known
as a
A. Scalar quantity C. Derived quantity
B. Small quantity D. Base quantity
(ii) A microsecond is equivalent to
1/1000 B. 1/10000 C. 1/1,000,000 D. 1/100,000
(iii) 1 milligram is equivalent to
1/1,00,000 B. 1/100,000 C. 1/10,000 D. 1/1000
(iv) Express the number 0.000000059 using Scientific notation.
5.9 x 10[sup]-8[/sup] B. 5.9x10[sup]-9[/sup] C. 5.9x10[sup]-7[/sup] D. 5.9x10[sup]-6[/sup]
(v) Which of the following physical quantity is not a derived quantity?
A. Temperature C. Speed
B. Acceleration D. Pressure
(vi) Which of the following measurement has the largest value?
1.0x10[sup]2[/sup] km C. 1.0x10[sup]8[/sup]cm
1.0x10[sup]7[/sup]mm D. 1.0x10[sup]10[/sup] um.
(vii) 0.36 litres of water is equivalent to
036 cm[sup]3[/sup] C. 360 m[sup]3[/sup]
360 cm[sup]3[/sup] D. 0.36 m[sup]3[/sup]
(viii) If 0.35 litres of water is mixed with 0.15 litre of mercury, then the density of
the mixture will be
14.6g/cm[sup]3[/sup] C. 7.3 g/cm[sup]3[/sup]
4.78 g/l D. 4.78 g/cm[sup]3[/sup]
(ix) An object has a relative density of 7.0. Its density in kg/m3 is
7 B. 700 C. 7000 D. 0.7
(x) The force which attracts bodies to the centre of the earth is
A. the centre of gravity C. the centripetal force
B. The equilibrium force D. the gravitational force
4. The water collected in a measuring cylinder during an experiment using a Eureka can is 30 cm[sup]3[/sup]. When the object the displaced this volume was dried and weighed, it mass was found to be 90g, Calculate.
Its density in g/cm3
Its density in kg/m3
Its relative density (R.D)
5. (a) Define Density and hence relative density
(b) A block of wood has a mass of 64g and a volume of 80cm3. Calculate.
[list=lower-roman]
[*]the density of wood.
[/list]
(ii) the additional mass that must be placed on the block 20 that it is just submerged
(sink) in water.
[list=lower-roman]
[*]A person who deals with study and research in the field of physics is called.
[/list]
Physician C. Physicist
Physikos D. Physiologist
[list=lower-roman]
[*]The following are common apparatus used to measure volume in laboratory except.
[/list]
Measuring cylinder C. Burette
Beam balance D. Pipette
[list=lower-roman]
[*]Which one is not an instrument for measuring length.
[/list]
A ruler C. A micrometer screw gauge
Vernier calipers D. A balance.
[list=lower-roman]
[*]The following are the most factors which enable the breakout of five
[/list]
Oxygen, fuel and heat
Oxygen; carbon dioxide and fuel
Oxygen, water and heat
Oxygen, heat sand
[list=lower-roman]
[*]A vernier caliper is used to measure
[/list]
Distance of a car C. Diameter of a wire
Mass of a car D. Length of a wire.
[list=lower-roman]
[*]Physic is _______________________
[/list]
A quantitative science
An experimental science
The most basic Science
A theoretical Science
SHORT ANSWERS QUESTIONS
Mention three fundamental quantities with their SI mints used in mechanics.
3. Mention the laboratory rules used in physics laboratory.
State any three sources of fire that can occur in physics laboratory.
(a) What is physics?
(b) What is a physics laboratory?
(a) List six laboratory rules
(b) Name four items found in a First Aid kit.
What are the four (4) possible hazards in physics laboratory
]]>
Multiple choice questions.
[list=lower-roman]
[*]When using measuring cylinder one precaution to be taken is
[/list]
Check for zero error
Look at the meniscus from below the level of the water surface.
Position the eye in line with the base of the meniscus.
Obtain more readings by looking from more than one direction.
1. Choose and write the letter of the most correct answer.
(i) A physical quantity that cannot be derived from other physical quantities is known
as a
A. Scalar quantity C. Derived quantity
B. Small quantity D. Base quantity
(ii) A microsecond is equivalent to
1/1000 B. 1/10000 C. 1/1,000,000 D. 1/100,000
(iii) 1 milligram is equivalent to
1/1,00,000 B. 1/100,000 C. 1/10,000 D. 1/1000
(iv) Express the number 0.000000059 using Scientific notation.
5.9 x 10[sup]-8[/sup] B. 5.9x10[sup]-9[/sup] C. 5.9x10[sup]-7[/sup] D. 5.9x10[sup]-6[/sup]
(v) Which of the following physical quantity is not a derived quantity?
A. Temperature C. Speed
B. Acceleration D. Pressure
(vi) Which of the following measurement has the largest value?
1.0x10[sup]2[/sup] km C. 1.0x10[sup]8[/sup]cm
1.0x10[sup]7[/sup]mm D. 1.0x10[sup]10[/sup] um.
(vii) 0.36 litres of water is equivalent to
036 cm[sup]3[/sup] C. 360 m[sup]3[/sup]
360 cm[sup]3[/sup] D. 0.36 m[sup]3[/sup]
(viii) If 0.35 litres of water is mixed with 0.15 litre of mercury, then the density of
the mixture will be
14.6g/cm[sup]3[/sup] C. 7.3 g/cm[sup]3[/sup]
4.78 g/l D. 4.78 g/cm[sup]3[/sup]
(ix) An object has a relative density of 7.0. Its density in kg/m3 is
7 B. 700 C. 7000 D. 0.7
(x) The force which attracts bodies to the centre of the earth is
A. the centre of gravity C. the centripetal force
B. The equilibrium force D. the gravitational force
4. The water collected in a measuring cylinder during an experiment using a Eureka can is 30 cm[sup]3[/sup]. When the object the displaced this volume was dried and weighed, it mass was found to be 90g, Calculate.
Its density in g/cm3
Its density in kg/m3
Its relative density (R.D)
5. (a) Define Density and hence relative density
(b) A block of wood has a mass of 64g and a volume of 80cm3. Calculate.
[list=lower-roman]
[*]the density of wood.
[/list]
(ii) the additional mass that must be placed on the block 20 that it is just submerged
(sink) in water.
[list=lower-roman]
[*]A person who deals with study and research in the field of physics is called.
[/list]
Physician C. Physicist
Physikos D. Physiologist
[list=lower-roman]
[*]The following are common apparatus used to measure volume in laboratory except.
[/list]
Measuring cylinder C. Burette
Beam balance D. Pipette
[list=lower-roman]
[*]Which one is not an instrument for measuring length.
[/list]
A ruler C. A micrometer screw gauge
Vernier calipers D. A balance.
[list=lower-roman]
[*]The following are the most factors which enable the breakout of five
[/list]
Oxygen, fuel and heat
Oxygen; carbon dioxide and fuel
Oxygen, water and heat
Oxygen, heat sand
[list=lower-roman]
[*]A vernier caliper is used to measure
[/list]
Distance of a car C. Diameter of a wire
Mass of a car D. Length of a wire.
[list=lower-roman]
[*]Physic is _______________________
[/list]
A quantitative science
An experimental science
The most basic Science
A theoretical Science
SHORT ANSWERS QUESTIONS
Mention three fundamental quantities with their SI mints used in mechanics.
3. Mention the laboratory rules used in physics laboratory.
State any three sources of fire that can occur in physics laboratory.
(a) What is physics?
(b) What is a physics laboratory?
(a) List six laboratory rules
(b) Name four items found in a First Aid kit.
What are the four (4) possible hazards in physics laboratory
]]><![CDATA[Si Units]]>
https://myelimu.com/thread-si-units
Sat, 13 Sep 2014 11:29:58 +0000MyElimu]]>https://myelimu.com/thread-si-unitsof a second.The Kilogram is still defined in the 'old' way as the mass of a certain cylindrical piece of platinum iridium alloy kept at the International Office of Weights and Measures in Paris. It was originally defined as the mass ofof pure water at the temperature of maximum density, 4 degrees Celsius. An error at the time of this measurement meant the volume was actually Debate is taking place about a more fundamental definition.Time has taken the same unit, the second, for most of recorded history. It was defined in terms of physical constants in 1967, as the time interval occupied by 9192631770 cycles of a specified energy change in the Caesium atom.Together with the SI unit of temperature, Kelvin K, these units constitute the basis of the system of units in use today. Other units are defined in terms of these base units, and the system has the advantage of being self consistent so that no conversion factors are required when the same quantities appear in different equations.]]>of a second.The Kilogram is still defined in the 'old' way as the mass of a certain cylindrical piece of platinum iridium alloy kept at the International Office of Weights and Measures in Paris. It was originally defined as the mass ofof pure water at the temperature of maximum density, 4 degrees Celsius. An error at the time of this measurement meant the volume was actually Debate is taking place about a more fundamental definition.Time has taken the same unit, the second, for most of recorded history. It was defined in terms of physical constants in 1967, as the time interval occupied by 9192631770 cycles of a specified energy change in the Caesium atom.Together with the SI unit of temperature, Kelvin K, these units constitute the basis of the system of units in use today. Other units are defined in terms of these base units, and the system has the advantage of being self consistent so that no conversion factors are required when the same quantities appear in different equations.]]><![CDATA[Projectile Motion Question]]>
https://myelimu.com/thread-projectile-motion-question
Tue, 17 Jun 2014 06:42:15 +0000Leonard Marco Msingi]]>https://myelimu.com/thread-projectile-motion-question
(1)how long will the arrow remain in air before hitting the ground.
(2)where will the arrow land in relation to the position of the track?]]>
(1)how long will the arrow remain in air before hitting the ground.
(2)where will the arrow land in relation to the position of the track?]]><![CDATA[Question.]]>
https://myelimu.com/thread-question
Mon, 26 May 2014 12:47:29 +0000Mrisho jr]]>https://myelimu.com/thread-question<![CDATA[Motion]]>
https://myelimu.com/thread-motion
Sun, 25 May 2014 14:36:43 +0000MyElimu]]>https://myelimu.com/thread-motion[b]VELOCITY AND ACCELERATION[/b]
When the body is moving it either moves at constant velocity or it accelarates, or it deccerates. In order to investigate motion of a body, it is neccessary to measure displacement and time of motion. In order to measure these quantities accurately a ticker timer may be used because it can measure small intervals of time accurately.
Definitions
Velocity is the rate of change of displacement (velocity = displacement/time)
Acceleration is the rate of change of velocity [acceleration is change in velocity/time; a = (v – u)/t]
Uniform velocity is the constant rate of change of displacement.
Uniform acceleration is the constant rate of change of velocity.
Acceleration due to gravity is the constant rate of change of velocity of a body falling freely under gravitational force only.The ticker timer works by making dots at regular time intervals (constant frequency) on a paper tape running through it.The rate at which the ticker timer makes the dots is the frequency(f), which is frequency of the a.c. voltage connected to it.Time between any two dots is equal to the reciprocal of frequency(T=1/f).Time on a ticker tape = number of spaces on the tape divided by frequency of the ticker timer. (t = n/f).From the ticker tape: Velocity = distance occupied by the spaces divided by the time t.
FRICTION COMPASATION
When a tolley is made to move on a runway,friction makes the trolley slow down. To compensate for friction on the runway the runway is inclined until the component of the weight of the trolley along the runway is just enough to overcome the frictional force so that the trolley moves down the runway at constant speed.
Job-related skills In forming the groups and carrying out the activities ensure that the following are deliberately achieved.
Personal attributes: - motivation and imagination.
Communication: - Knowing and applying general and specialized vocabulary in physics.
Team work: - ability to cooperate and share tasks with colleagues.
Problem solving: - goal focused, seek out relevant information, identify constraints, evaluate alternatives and make decisions/ choices.
Implementation and application: - the ability to carry out complex operations and follow instructions to achieve accurate results.
Application of numbers: - ability to work with and present numerical data, using appropriate intermediate calculations.
Information skills: - ability to present evidence to meet the needs of different audiences using graphs, reports and images.
Innovation: ability to find a way around a given problem or task, or to improve on the performance of a device.
Motion basic concepts
Speed is the distance travelled in a given time. For example if a car travels 300km in 5 hours then its:Average Speed = Distance moved/Time = 300/5 = 60 km per hour.
Velocity is calculated using the same formula, but when the velocity is stated you also have to give the direction of travel. (So Velocity = speed and direction)When the velocity of an object changes, by getting faster or slower, we say there is a change in its acceleration. If a car increases its velocity from 10 miles per hour to 60 miles per hour in 10 seconds then its:
Acceleration = Change in velocity/Time taken = 50/10 = 5 miles per hour per hour.
Cheetahs can reach a top speed of between 100 and 120 km/hour.At full speed, a cheetah can cover 7-8 meters every stride and it takes four strides every second.
Question: How many meters will a cheetah cover in a second? Is this its speed or its velocity?
Not only does the cheetah have a high top speed - it also has rapid acceleration. It can accelerate from zero to 80km per hour in 3 seconds.Although very fast, cheetahs are not as strong as other predators such as a lion or leopard. But additional muscle mass would add to the cheetahs weight and slow it down.
Animal trackers can tell from animal footprints how fast they are travelling and whether they are getting faster or slowing down. When they go faster (accelerate) their footprints get wider apart, and when they slow down (decelerate) their footprints get closer together.Question: When animals go uphill would you expect their footprints to get closer together or further apart? Why?
]]>[b]VELOCITY AND ACCELERATION[/b]
When the body is moving it either moves at constant velocity or it accelarates, or it deccerates. In order to investigate motion of a body, it is neccessary to measure displacement and time of motion. In order to measure these quantities accurately a ticker timer may be used because it can measure small intervals of time accurately.
Definitions
Velocity is the rate of change of displacement (velocity = displacement/time)
Acceleration is the rate of change of velocity [acceleration is change in velocity/time; a = (v – u)/t]
Uniform velocity is the constant rate of change of displacement.
Uniform acceleration is the constant rate of change of velocity.
Acceleration due to gravity is the constant rate of change of velocity of a body falling freely under gravitational force only.The ticker timer works by making dots at regular time intervals (constant frequency) on a paper tape running through it.The rate at which the ticker timer makes the dots is the frequency(f), which is frequency of the a.c. voltage connected to it.Time between any two dots is equal to the reciprocal of frequency(T=1/f).Time on a ticker tape = number of spaces on the tape divided by frequency of the ticker timer. (t = n/f).From the ticker tape: Velocity = distance occupied by the spaces divided by the time t.
FRICTION COMPASATION
When a tolley is made to move on a runway,friction makes the trolley slow down. To compensate for friction on the runway the runway is inclined until the component of the weight of the trolley along the runway is just enough to overcome the frictional force so that the trolley moves down the runway at constant speed.
Job-related skills In forming the groups and carrying out the activities ensure that the following are deliberately achieved.
Personal attributes: - motivation and imagination.
Communication: - Knowing and applying general and specialized vocabulary in physics.
Team work: - ability to cooperate and share tasks with colleagues.
Problem solving: - goal focused, seek out relevant information, identify constraints, evaluate alternatives and make decisions/ choices.
Implementation and application: - the ability to carry out complex operations and follow instructions to achieve accurate results.
Application of numbers: - ability to work with and present numerical data, using appropriate intermediate calculations.
Information skills: - ability to present evidence to meet the needs of different audiences using graphs, reports and images.
Innovation: ability to find a way around a given problem or task, or to improve on the performance of a device.
Motion basic concepts
Speed is the distance travelled in a given time. For example if a car travels 300km in 5 hours then its:Average Speed = Distance moved/Time = 300/5 = 60 km per hour.
Velocity is calculated using the same formula, but when the velocity is stated you also have to give the direction of travel. (So Velocity = speed and direction)When the velocity of an object changes, by getting faster or slower, we say there is a change in its acceleration. If a car increases its velocity from 10 miles per hour to 60 miles per hour in 10 seconds then its:
Acceleration = Change in velocity/Time taken = 50/10 = 5 miles per hour per hour.
Cheetahs can reach a top speed of between 100 and 120 km/hour.At full speed, a cheetah can cover 7-8 meters every stride and it takes four strides every second.
Question: How many meters will a cheetah cover in a second? Is this its speed or its velocity?
Not only does the cheetah have a high top speed - it also has rapid acceleration. It can accelerate from zero to 80km per hour in 3 seconds.Although very fast, cheetahs are not as strong as other predators such as a lion or leopard. But additional muscle mass would add to the cheetahs weight and slow it down.
Animal trackers can tell from animal footprints how fast they are travelling and whether they are getting faster or slowing down. When they go faster (accelerate) their footprints get wider apart, and when they slow down (decelerate) their footprints get closer together.Question: When animals go uphill would you expect their footprints to get closer together or further apart? Why?