Grade 10 Physical Sciences March Paper and Memo:
Total: 100 Marks.
This exam paper covers the following work:
Waves | sound & light | Electrostatics | Electric Circuits
This is a practice paper with memorandum meant to test the student's knowledge, and will not be the same paper written...
QUESTION 1
Various options are provided as possible answers to the following questions. Choose the correct
answer and write ONLY the LETTER (A-D) next to the QUESTION NUMBER (1.1-1.5) on your
folio paper. Example 1.6. D.
1.1 A positively charged object has:
A An excess of electrons
B A shortage of electrons
C An excess of neutrons
D A shortage of neutrons
1.2 Which one of the following types of electromagnetic waves has the LONGEST wavelength?
A Gamma rays
B UV rays
C Microwaves
D X rays
1.3 In which ONE of the following do sound waves travel the FASTEST?
A Liquids
B Vacuum
C Air
D Solids
1.4 The SI unit for charge is the ...
A Coulomb
B Volts
C Ohms
D Ampere
1.5 The relationship between voltage and work done is:
A Constant
B Directly proportional
C Inversely proportional
D Indirectly proportional
[10]
1|Page www.summariessa.co.za Physical Sciences
Grade 10 March Paper
, QUESTION 2
Below is a representation of two waves consisting of continuous pulses. Study it carefully and
answer the questions that follow.
2.1 Define a pulse. (2)
2.2 Identify the type of waves illustrated above as TRANSVERSE or
LONGITUDINAL. Give a reason for your answer. (3)
2.3 Which one of the two waves, P or Q, has the greatest amplitude? (1)
2.4 For Wave Q:
2.3.1 What is the magnitude of its wavelength in metres? (1)
2.3.2 What is the magnitude of its period? (1)
2.3.3 Calculate the wave speed. (3)
2.5 If the waves were sent towards each other and allowed to collide.
2.5.1 What phenomenon would be observed? (2)
2.5.2 Determine the new wave’s amplitude. (2)
[15]
QUESTION 3
3.1 The diagram below shows different points on a longitudinal wave.
3.1.1 Provide labels for A, B and C. (3)
2|Page www.summariessa.co.za Physical Sciences
Grade 10 March Paper
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