Examination design. Learning intentions. That a good examination is meaningful, fair and used to inform teaching That a good examination is derived from the curriculum content That a good examination provides a range of question types appropriate to different levels of thinking
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Choose the suitable word(s):(__ marks): Write your answers in the box below:
1-1-Oxygen occurs in the free state as a gas, to the extent of ......... per cent by volume in the atmosphere.
a-21 b-23 c-78
Choose the correct answer in the following : ____ Marks
2 - The energy used in the Calvin cycle for the production of carbohydrate
molecules comes from
Identify the choice that best completes the statement or answers the question.
In a vacuum, electromagnetic radiation of short wavelengths
Question 3 short answer questions . ____ marks
A - In the shape beside which presents a character of cross leaf structure
In which part photosynthesis does occur
……… … and it is called
B - Explain why photosynthesis is more concentrated in this part of the leaf?
Put (true) or (false ) in the flowing sentences ( marks)
1-The dark lines in a double-slit interference pattern are due to constructive interference ( )
Answer the following questions
1-If a light ray strikes a flat mirror at an angle of
above the mirror’s surface, what is the angle of reflection in relation to the normal?
D-Fill in the following table:(Two marks)
QUESTION ONE: TANDEM SKYDIVING
Ali wins a competition for a Tandem Skydive.
The plane flies to a height of 5 000 m above sea level.
Ali is strapped to his jumpmaster.
Ali and the jumpmaster have a combined mass of 150 kg.
(a)Using the equation Fgravity = mg find the combined weight of Ali and the jumpmaster.
Weight = __________ N
(b)Calculate the amount of gravitational potential energy Ali and the jumpmaster have just before they jump out of the plane at 5 000 m.
Gravitational Potential Energy = _______________ J
B-Explain the presence of two series of salts of sulphur?(Two marks)
Answer the following question(5marks)
1-Using the concepts of reflection and refraction, explain how arainbow is formed from tiny water droplets in the sky. Include adiagram to explain your answer.
(d)Many disease-causing bacteria have become resistant to antibiotics.
Discuss (i) how the use of antibiotics has made this problem worse, and
(ii) what can be done to reduce the problem.