SSLC (English Medium) Class 9 - Tamil Nadu Board of Secondary Education Question Bank Solutions

Which of the following is correct about uniform circular motion

1. the direction of motion is continuously changed
2. the direction of motion is not changed
3. speed and direction both remain constant
4. speed is constant but the direction is changing

A body is said to be in nonuniform motion if it travels ______.

In uniform motion, an object travels equal ______ in ______ interval of time.

The motion of the bus is ______ motion.

It is possible to have objects moving with uniform velocity but non-uniform acceleration.

Define uniform circular motion and give an example of it. Why is it called accelerated motion?

Saccharometer is used to measure the density of ______ in a liquid. 

The Lactometer works on the principle of ______ of milk.

Match the following:

The correct lactometer reading is only obtained at a temperature of 60° C.

What is a trip switch?

The following is not a safety device.

An electric fuse is a wire made up of a material having ______ melting point.

An electrochemical cell converts ______ energy into ______ energy.

A trip switch is a ______ safety device.

A fuse is used in an electric circuit to stop high currents flowing through the circuit.

The electric fuse works on the Joule heating principle.

Explain why fuse wire is always connected in a series arrangement.

Define the following:

Electrolyte

An electric generator converts ______.