P4 Science · Energy Forms and Uses (Heat) · 203 questions · difficulty D1–D5 · Singapore MOE-aligned
Sample questions
SAMPLE 1
A metal spoon and a wooden spoon are left in a pot of hot soup for 5 minutes. Which spoon will feel hotter to the touch?
A metal spoon
B wooden spoon
C both feel the same
D neither feels hot
SAMPLE 2
During a baking class, Priya touches a metal baking tray and a wooden spoon that have been in the oven at 180°C for 10 minutes. Which object feels hotter to her touch, and why?
A The metal tray feels hotter because it is a better conductor of heat.
B The wooden spoon feels hotter because it is a poorer conductor of heat.
C Both feel equally hot because they are at the same temperature.
D The wooden spoon feels hotter because it absorbs heat faster.
SAMPLE 3
A metal spoon and a plastic spoon are placed in a cup of hot soup at 80°C. After 5 minutes, the handle of the metal spoon feels much hotter than the handle of the plastic spoon. Which property of the spoons explains this difference?
A Metal is a better conductor of heat than plastic.
B Plastic absorbs heat faster than metal.
C Metal has a higher temperature than plastic.
D Plastic reflects heat away from the handle.
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