Force

Write a short note on electronic balance.

What is tension force?

In a free fall, weight of a body becomes effectively zero.

_____ can change the shape and size of the object.

Machines have influenced the functions of the society.

What are the advantages of machines in modern age?

A man weighing $60 \mathrm{kg}$ is in a lift moving down with an acceleration of $1.8 \mathrm{m} {\mathrm{s}}^{-2}$. The force exerted by the floor on him is

A man weighing $60 \mathrm{kg}$ is in a lift moving down with an acceleration of $1.8 \mathrm{m} {\mathrm{s}}^{-2}$. The force exerted by the floor on him is

This car has broken down and is being pulled by an SUV. The car is being pulled along a flat road at a constant speed. Which statement correctly describes the forces?

A device that helps to make work easier to perform _____(machine/ energy/ food).

The weight of your shoes can be

How will you weigh $4 \mathrm{kg}$ rice by using a $5 \mathrm{kg}$ and a $1 \mathrm{kg}$ weight?

How will you weigh $3 \mathrm{kg}$ onions by using a $5 \mathrm{kg}$ and a $2 \mathrm{kg}$ weight?

Shweta bought some rice. If the shopkeeper used the following weights, how much rice did she buy in the following case?

If the final answer is $W \mathrm{kg}$ write the value of $W$ in the answer box.

Shweta bought some rice. If the shopkeeper used the following weights, how much rice did she buy in the following case?

If the final answer is $W \mathrm{g}$ write the value of $W$ in the answer box.

What do you mean by buoyancy?

Sudha wanted to buy four lemons and a large-sized pumpkin. The vegetable seller had only one $50 \mathrm{g}$ weight. What do you think the seller would be able to weigh correctly: lemons or the pumpkin?