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Cambridge Stage 8 Year 2 Science,
Co
Physics Electricity And Magnetism Mock
Exam 0001 Answer Key
Question 1: Static Electricity [6 marks]
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Q.1(a) “A student rubs… negatively charged.”
oN
Marking Scheme & Criteria:
[1 Mark]: Stating friction/rubbing causes electrons to move from the woolen cloth
to the plastic rod. (Note: Mention of protons moving scores 0 marks).
[1 Mark]: Stating that because the rod gains electrons, it acquires a net negative
t-D
charge.
Q.1(b) “State what charge… being rubbed, and explain your answer.”
(Expanded for clarity)
Marking Scheme & Criteria:
ul
[1 Mark]: Stating the cloth becomes positively charged.
[1 Mark]: Explaining that it lost negative electrons to the rod, leaving it with an
excess of protons.
Va
Q.1( c ) “The student suspends… explains this behavior.”
Circuit Diagram
Marking Scheme & Criteria:
[1 Mark]: Describing that the suspended rod will move away or repel from the
m
second rod.
[1 Mark]: Stating the law of electrostatics: like charges repel each other.
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Question 2: Circuit Components & Diagrams [6 marks]
Q.2(a) “A student sets… across the bulb.”
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Circuit Diagram
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Co
ot
Image Source (Created by the Author)
Marking Scheme & Criteria:
oN
[1 Mark]: Main circuit loop drawn as a single, closed continuous path containing
the cell, switch, and bulb.
[1 Mark]: All standard Cambridge schematic symbols drawn accurately without
open gaps.
[1 Mark]: Voltmeter correctly placed in an independent, parallel branch wired
directly across the bulb.
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Q.2(b) “Draw the correct… following components:”
Correct Answers:
Ammeter:
ul
Va
m
Image Source (Created by the Author)
[1 Mark]
Ca
Fixed Resistor:
©
Image Source (Created by the Author)
Cambridge Stage 8 Year 2 Science,
Co
Physics Electricity And Magnetism Mock
Exam 0001 Answer Key
Question 1: Static Electricity [6 marks]
ot
Q.1(a) “A student rubs… negatively charged.”
oN
Marking Scheme & Criteria:
[1 Mark]: Stating friction/rubbing causes electrons to move from the woolen cloth
to the plastic rod. (Note: Mention of protons moving scores 0 marks).
[1 Mark]: Stating that because the rod gains electrons, it acquires a net negative
t-D
charge.
Q.1(b) “State what charge… being rubbed, and explain your answer.”
(Expanded for clarity)
Marking Scheme & Criteria:
ul
[1 Mark]: Stating the cloth becomes positively charged.
[1 Mark]: Explaining that it lost negative electrons to the rod, leaving it with an
excess of protons.
Va
Q.1( c ) “The student suspends… explains this behavior.”
Circuit Diagram
Marking Scheme & Criteria:
[1 Mark]: Describing that the suspended rod will move away or repel from the
m
second rod.
[1 Mark]: Stating the law of electrostatics: like charges repel each other.
Ca
Question 2: Circuit Components & Diagrams [6 marks]
Q.2(a) “A student sets… across the bulb.”
©
Circuit Diagram
, py
Co
ot
Image Source (Created by the Author)
Marking Scheme & Criteria:
oN
[1 Mark]: Main circuit loop drawn as a single, closed continuous path containing
the cell, switch, and bulb.
[1 Mark]: All standard Cambridge schematic symbols drawn accurately without
open gaps.
[1 Mark]: Voltmeter correctly placed in an independent, parallel branch wired
directly across the bulb.
t-D
Q.2(b) “Draw the correct… following components:”
Correct Answers:
Ammeter:
ul
Va
m
Image Source (Created by the Author)
[1 Mark]
Ca
Fixed Resistor:
©
Image Source (Created by the Author)
