Question

C. Write T for True and F for False. Correct the false statements.
1. Physics is a subject that deals with quantities that cannot be measured.
2. Only solids have volume.
3. One hectometre is 10,000 m2
4. Each substance has a unique density associated with it.
5 The object that covers a given distance in a lesser time has more speed.
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Answer 1

Answer:

1.F

2.F

3.T

4.T

5.T

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Explanation:

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Answer 2

Answer:

1. F

2. F

3. T

4. T

5. T

Explanation:

Explanation of answer 1: Physics is a subject that deals with quantities that can be measured.

Explanation of answer 2: A solid has definite volume and shape, a liquid has a definite volume but no definite shape, and a gas has neither a definite volume nor shape.

Explanation of answer 3: A hectare (ha) is an area equal to a square that is 100 meters on each side. So a hectare has 100 m × 100 m = 10,000 m² (square meters). Hectares are commonly used to measure land.

Explanation of answer 4: DENSITY is a physical property of matter, as each element and compound has a unique density associated with it. Density defined in a qualitative manner as the measure of the relative "heaviness" of objects with a constant volume.if a rock sinks, it is more dense than water.

Explanation of answer 5: An object is said to have a fast speed if it covers a larger distance in a shorter time. So if you have to calculate speeds of two cycles, then the one reaching the finishing point in less time has a higher speed. So, Speed is defined as the distance covered by an object a given unit of time.

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