Comparing Weights

Q.

Shyama bought $5\mathrm{kg}300\mathrm{g}$ apples and $3\mathrm{kg}250\mathrm{g}$ mangoes. Sarala bought $4\mathrm{kg}800\mathrm{g}$ oranges and $4\mathrm{kg}150\mathrm{g}$ bananas. Who bought more fruits?

Q.

A block of wood floats in water with $3/5^{th}$ of its volume inside its surface. Calculate the density of wood. (Take density of water as $1000kg/m^3$)

Q.

Which has greater density, iron or wood?

Q. Weight of a watermelon is 1 kg.
What is the total weight of 7 such watermelons?
Write your answer in grams.

Q. A 1 kg iron ball is heavier than 900 grams of cotton balls by ___.

1. 100 g
2. 200 g
3. 1 kg
4. 900 g

Q. ntCan equivalent weight of a subtance be greater than its molecular weight ? If yes , how?n

Q. If a balloon weighs 4 grams and a stone weighs 1 kilogram, then which of the following is the heaviest?

1. 200 balloons
2. 1 stone
3. 2 stones
4. 400 balloons

Q. A 100 gram packet of chips is heavier than a 1 kg packet of sugar.

1. True
2. False

Q. 2 kg of sugar is placed on one pan of a weighing balance. Which of the following can be kept on the other pan so that the pans balance?

1. 2000 g of feathers
2. 2 kg of iron
3. 2 kg of bricks
4. 2000 g of silk

Q. There are two identical water bottles, one filled with water, and the other one empty. Which one of them has higher density?

1. The empty one
2. The one with water
3. Both the bottles have equal density.
4. Cannot be determined

Q.

If we take two cubes of the same size but of different materials and weigh them, they will weigh the same.

1. True
2. False

Q.

The density of Aluminium is $2710kg/m^3$. Find the mass of an aluminum block of dimensions $2m\times 1.5m\times 1m$.

Q. If a measured mass and volume of body are 22.72g and 4cm3 respectively. Then max. Possible error in density is??