SSLC (English Medium) कक्षा ९ - Tamil Nadu Board of Secondary Education Question Bank Solutions for Science

What unit will you use to measure the length of our classroom?

SI unit of electric current is ______.

Larger unit for measuring time is ______.

Yard was used as the unit of length.

The SI unit of mass is kg.

A particle is moving in a circular pattern of radius r. The displacement after half a circle would be ______.

The rate of change of displacement ______.

A scalar quantity has ______.

A body is projected up with an initial velocity of u m/s. It goes up to a height, ‘h’ meters in seconds' time. Then it comes back at the point of projection.

Considering negligible air resistance, which of the following statement is true?

An ant moves from one corner of a room diagonally to the opposite corner. If the dimensions of the hall are 8m x 6m, the displacement of the ant is ______.

The displacement covered by the second hand of radius V in a clock after one revolution is ______.

A man leaves his house at 6.30 a.m. for a morning walk and returns back at 7.30 a.m. after covering 4 km. The Displacement covered by him is ______.

A quantity that has both magnitude and direction is ______.

Choose the correct option.

Distance travelled by a freely falling body is proportional to ______.

If the displacement-time graph of a particle is parallel to the time axis, the velocity of the particle is ______.

Displacement is the ______ distance covered by a body.

Displacement can be zero but distance never.

Displacement magnitude can be greater than the distance traveled by the object.

Assertion: If the displacement of the body is zero, the distance covered by it may not be zero.
Reason: Displacement is a vector & distance is a scalar quantity.