Elastic Spring Force & Graphs – PSLE Science 2022 Booklet A Question 27
Introduction This PSLE Science question tests understanding of elastic spring force and the ability to interpret force–extension/compression graphs. Students must identify which spring is stiffer, which extension is larger, and how the direction of elastic spring force changes depending on compression or extension. The teacher uses diagrams and graphs to explain the reasoning clearly. […]
Forces on a Magnet on a Slope – PSLE Science 2023 Booklet A Question 17
Introduction This PSLE Science question tests understanding of multiple forces acting at the same time — friction, gravitational force, and magnetic force. Students must determine which forces act on a magnet placed on a slope and why the magnet moves the way it does. The teacher clearly explains how each force affects the magnet’s motion […]
Adaptations & Method of Elimination – PSLE Science 2022 Booklet A Question 11
Introduction This PSLE Science question tests a student’s ability to understand animal adaptations, including how physical features help animals survive in different temperatures. The teacher uses the method of elimination to quickly narrow down incorrect options and identify the organism that is best suited for the given environment. The Question Students are given a […]
Brightness of Bulbs in Circuits – PSLE Science 2022 Question 22
Introduction This PSLE Science question tests your understanding of electric circuits—specifically how current and battery arrangement affect the brightness of a bulb. The teacher compares four circuits that use identical bulbs and batteries to determine when Bulb L has the same brightness across different setups. The Question Mariam sets up four circuits using identical […]
Reading Graphs: Best Temperature for Two Bacteria – PSLE Science
Introduction Graph questions in PSLE Science often compare how two organisms respond to a factor such as temperature. The key idea is to find the overlap where both organisms can grow, then choose the option that is most suitable—usually a temperature that lies within the overlap and is close to each organism’s peak. The Question […]