Science Physics Topics Flashcards
6 cards from real PSLE practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Science Physics Topics flashcards as text
How does sound travel?
Answer: Through vibrations in a medium
Sound travels through vibrations that pass through a medium (solid, liquid, or gas). It cannot travel through a vacuum.
Which of the following objects would be attracted to a magnet?
Answer: Steel paper clip
Steel is a magnetic material (it contains iron) and would be attracted to a magnet. Wood, plastic, and glass are not magnetic.
What is the process called when a liquid changes to a gas?
Answer: Evaporation
Evaporation is when a liquid changes to a gas, usually at the surface of the liquid. When heated to boiling point, it is called boiling.
What does a thermometer measure?
Answer: Temperature
A thermometer measures temperature, which indicates how hot or cold something is.
Which of the following is a non-renewable source of energy?
Answer: Coal
Coal is a non-renewable energy source — it takes millions of years to form and will eventually run out.
In which direction does heat naturally flow?
Answer: From hot to cold objects
Heat naturally flows from hotter objects to cooler objects until thermal equilibrium is reached.
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