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CBSE 9th Science | Matter-Nature and its Behaviour (Short Answer Type Questions)
Matter-Nature and its Behaviour (Short Answer Type Questions) Question 1. Classify the following substances as elements,compounds and mixtures. (i) Gasoline (ii) Tap water (iii) Distilled water (iv) Milk (v) Air (vi) Sand (vii) Diamond (viii)Wood (ix) Brass. Answer. (i) Mixture (Homogeneous) (ii) Mixture (Homogeneous) (iii) Compound (iv) Mixture (Heterogeneous) (v) Mixture (Heterogeneous) (iv) Mixture (Heterogeneous)…
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CBSE Physics | Conceptual Questions on Force and Laws of Motion (with Solutions)
Conceptual Questions on Force and Laws of Motion (with Solution) Conceptual Questions (with solution) Question 1. A cricket player lowers his hand while catching the ball. Why? Answer. When a cricket player lowers his hands, the time to stop the ball increases, so the rate of change of momentum decrease and hence less force has…