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

Find the kinetic energy of a body of mass 5 kg moving with a uniform velocity of 10 m s^-1.

A ball of mass 0.5 kg slows down from a speed of 10 m s⁻¹ to that of 6 m s⁻¹. Calculate the change in the kinetic energy of the ball.

A lens forms an image between the object and the lens. Draw a ray diagram to show the formation of such an image.

Why is uniform circular motion said to be accelerated?

Give one example of superconductor.

How is the refractive index of a material related to real and apparent depth?

Name the color code of the wire which is connected to the metallic body of an appliance.

State Fleming’s left hand rule.

Draw a diagram of a block and tackle system of pulleys having a velocity ratio of 5. In your diagram indicate clearly the points of application and the directions of the load L and effort E. Also mark the tension T in each strand.

Name the force required for circular motion. State its direction.

What is a centripetal force?

With reference to the direction of action, how does a centripetal force differ from centrifugal force?

Is centrifugal force the force of rection of centripetal force?

The main fuse is connected in ______.

The velocity ratio of a single movable pulley is always 2.

The velocity ratio of a combination of n movable pulleys with a fixed pulley is always 2ⁿ.

The velocity ratio of a block and tackle system is always equal to the number of strands of the tackle supporting the load.

What is the colour code for the insulation on the live wire?

A power circuit uses a cable having three different wires. Name the three wires of the cable.

State two circumstances when one may get an electric shock from an electrical gadget. What preventive measure must be provided with the gadget to avoid it?