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

Choose the correct one.

Define measurement.

Match the Following.

Sr. No.	List I		List II
1.	Motion of a body covering equal distances in equal interval of time	A.
2.	Motion with non uniform acceleration	B.
3.	Constant retardation	C.
4.	Uniform acceleration	D.

What do you mean by uniform motion?

In a pressure cooker, the food is cooked faster because ______.

An empty plastic bottle closed with an airtight stopper is pushed down into a bucket filled with water. As the bottle is pushed down, there is an increasing force on the bottom. This is because

A drinking straw works on the existence of ______.

Match the following.

Rubbing of comb with hair

Electric field lines ______ from positive charge and ______ in negative charge.

Match the following.

State whether true or false. If false, correct the statement.

Electrically neutral means it is either zero or equal positive and negative charges.

Electrons move from ______potential to______ potential.

On what factors does the electrostatic force between two charges depend?

Define electric field.

What are electric lines of force?

Exercise.

Rubbing a comb on hair makes the comb get – 0.4C. 

1. Find which material has lost electron and which one gained it. 
2. Find how many electrons are transferred in this process.

A ray of light passes from one medium to another medium. Refraction takes place when angle of incidence is ______.

When a beam of white light passes through a prism it gets ______.

State whether true or false. If false, correct the statement.

If a ray of light passes obliquely from one medium to another, it does not suffer any deviation.