Advertisements
Advertisements
प्रश्न
There are three solids made up of aluminium, steel and wood, of the same shape and same volume. Which of them would have the highest inertia?
Advertisements
उत्तर
As the mass is a measure of inertia, the solid of the same shape and size having more mass than other solids will have the highest inertia. Out of aluminium, steel and wood, the density of steel is maximum and hence the mass, therefore, solidly made up of steel would have the highest inertia.
APPEARS IN
संबंधित प्रश्न
Name the forces acting on a plastic bucket containing water held above ground level in your hand. Discuss why the forces acting on the bucket do not bring a change in its state of motion.
Match the following:
| Group ‘A’ | Group ‘B’ | ||
| (i) | An ox pulling a cart | (a) | Magnetic force |
| (ii) | Lifting a heavy iron object with a crane | (b) | Electrostatic force |
| (iii) | Weighing with a spring balance | (c) | Muscular force |
| (iv) | Applying brakes to a bicycle | (d) | Gravitational force |
| (v) | Picking up pieces of paper with a plastic scale | (e) | Frictional force |
Explain in your own words and give one example.
Gravitational force
Explain in your own words and give one example.
Mechanical force
Explain in your own words and give one example.
Electrostatic force
Write an answer to the following question in your own words.
What is meant by weight?
Write an answer to the following question in your own words.
Which machines run on muscular force?
Gravity pushes the ripen coconut from the tree to the ground.
Two rods of the same weight and equal length have different thickness. They are held vertically on the surface of sand as shown in figure. Which one of them will sink more? Why?

Which of the following is a clear example of electrostatic force in action?
