1. What do you mean by volume? Mention its unit.
2. Define density
3. Differentiate between area and volume.
4. Define speed? Mention the formula for calculating it.
5. How many wooden boxes of size 5 cm x 5 cm x 10 cm can be packed in a cardboa
40 cm x 30 cm. (HOTS)
6. A metal cube has a volume of 100 cm². If the density of the metal is 7.5 g/cm', finc
cube.
7. A piece of wood has a mass of 100 g. If it occupies a volume of 200 cm", find its de
8. A metal piece has a density of 11.3 kg/m'. If its mass is 226 kg, find its volume.
9. What is the mass of air filled in a closed room measuring 12 m x 12 m x 10 m, if the
is 1.3 kg/m?
10. A cyclist is driving at a speed of 12 m/s. In how much time, will he cover a distanc
11. A train is running at a speed of 90 km/h. In how much time, will it cross the dista
stations, 7.5 km apart?
12. A car is moving at a speed of 54 km/h. How much distance will the car cover in 10
Answer the following questions in detail.
1. Explain with the help of an example how is the density of a regular solid measure
C.
Answers
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Answer:
a volume is a sound nothing other
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1.Volume is the quantity of three-dimensional space occupied by a liquid, solid, or gas. Common units used to express volume include liters, cubic meters, gallons, milliliters, teaspoons, and ounces, though many other units exist.
2.the degree of compactness of a substance.
3.Area is the amount of space occupied by a two dimensional flat object in a plane. Volume is defined as the space occupied by the three-dimensional. It is always measured in square units.
4.The equation for speed is simple like distance divided by time. You take the distance travelled (for example 3 meters) and divide it by the time (three seconds) to get the speed (one meter per second) So, we can define Speed as the rate of change of position of an object in any direction.
SPEED = D/T
5.Total number of wooden box fix in cardboard = 1200/ 40 = 30 boxes.
I HOPE THIS HELPS YOU
10❤️+ FOLLOW = INBOX
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