Science Test Book Class-10

 Group-B

Very Short Questions.

1. Which is the dependent variable in the experinment where solubility of salt is measured at different temperatures?

Ans:- Solubility fo salt is the dependent variable in the experiment where solubility of salt is measured at different temperaturs.

2. What is a dependent variable in a process of throwing a stone with a stretched rubber band?

Ans:- Distance traveled by stone is a dependent variable in process of throwing s stone with a stretched rubber band. 

3. Write the fundamental units included in the unit of force.

Ans:-The fundamental units included in the unit of force are:-

Kilogram(kg) - Unit of mass

Metre(m) - Unit of length

Second(s)- Unit of time.

4. Write a difference between fundamental unit and derived unit.

Ans:-

Fundamental Unit	Derived Unit
Fundamental units are independent units.	Derived unit are depend on fundamental units.

5. Define controlled variable.

Ans:-A varialble that does not change in an experiment is called controlled variable.

6. What is a unit?

Ans:- Unit is a standard quantity used to measure physical things like length, mass, and time.

7.