Standard Science Primary 4 Matter

Jun Jie compressed a syringe filled with air. Which of the following is true about the air in the syringe?

A Its volume decreased.
B Its mass decreased.
C Its mass increased.
D Its volume remained the same.
Show Worked Solution

Worked Solution

Step 1: Air has no definite volume and is compressible. Step 2: Compressing the plunger forces the air into a smaller space. Step 3: Therefore, the volume decreases while mass remains constant.

Correct answer: Its volume decreased.

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