(English Medium) ICSE Class 10 - CISCE Question Bank Solutions

A body is acted upon by two forces of magnitude F, but in opposite directions. State the effect of the force if the two forces act at two different points of the body at a separation r.

How is horse power related to the S. I. unit of power?

A canon ball of mass 500g is fired with a speed of 15m/s^-1. Find: its momentum.

A body of mass 60 kg has the momentum 3000 kgm/s^-1. Calculate:  the speed of the body.

How much energy is gained by a box of mass 20 kg when a man, runs carrying the box with a speed of 3 m/s^-1 to catch the bus?

Stat the principle of an ideal machine.

Shows a lemon crusher.

1. In the diagram, mark the position of the fulcrum F and the line of action of load L and effort E.
2. Name the class of lever

Complete the following sentence :

Mechanical advantage = ___________ × velocity ratio

Complete the following sentence :

A scissors is a ___________ multiplier.

How does the frequency of sound given by a stretched string depend on its

1. length,
2. tension?

Name the three constituents of an atom and state their mass and charge of each. How are they distributed in an atom?

Define the term atomic number.

Define the term mass number.

Define 1 Dyne.

Define contact forces.

A coolie, with a load of 30 kg on his head, walks on the platform. If he walks a distance of 60 m, what is the work done by him?

Under what condition will a set of gears produce a gain in speed 

Define Translational motion.

In the following case write yes, if the work is being done and no if no work is being done.

A coolie standing with a heavy load on his head

In the following case write yes, if the work is being done and no if no work is being done.

A boy climbing up a staircase.