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

What is nucleus of an atom? Compare its size with that of the atom. Name its constituents. How is the number of these constituents determined by the atomic number and mass number of the atom?

What is the range of wavelength of the spectrum of white light nm?

A brass ball is hanging from a stiff cotton thread. Draw a neat labeled diagram showing the forces acting on the brass ball and cotton thread

How does the magnitude of this non-contact force on the two bodies depend on the distance of separation between them?

An effort is applied on the bigger wheel of a gear having 32 teeth. It is used to turn a wheel of 8 teeth. Where it is used.

On reversing the direction of the current in a wire, the magnetic field produced by it gets ______.

What is the SI unit of the moment of force?

Name the factors affecting the turning effect of a body

How is work done by a force measured when the force is in an angle to the direction of displacement?

Where can a body execute free vibrations?

A nut is opened by a wrench of length 20 cm. If the least force required is 2N, find the moment of force needed to loosen the nut.

A force is applied on (i) a non-rigid body and (ii) a rigid body. How does the effect of the force differ in the above two cases?

Identify the following wires used in a household circuit: The wire is also called as the phase wire.

A half metre rod is pivoted at the centre with two weights of 20gf and 12gf suspended at a perpendicular distance of 6 cm and 10 cm from the pivot respectively as shown below.

1) Which of the two forces acting on the rigid rod causes clockwise moment?

2) Is the rod in equilibrium?

3) The direction of 20 kgf force is reversed. What is the magnitude of the resultant moment of the forces on the rod?

State the S.I. unit of moment of force.

State one way to obtain greater moment of a given force about a given axis of rotation.

What do you understand by refraction of light?

What are contact forces? Give two Example

What are non-contact forces? Give two example

Classify the following amongst contact and non-contact force.

force of tension in a string