Page 3 - HA
P. 3
SAI International School
Subject- Physics
Class room Activity Work Sheet 3
Session: 2020-21
Name: Admn. No: Class/Sec: ( )
Date: _________________
1. What happened when the ball was released from a height?
…………………………………………………………………………………………….
……………………………………………………………………………………………
2. Why was a glass ball taken for the experiment and not any other ball?
………………………………………………………………………………………………
3. What happened when the angle of inclination was changed further?
………………………………………………………………………………………………
4. What was the result when we made one of the planes horizontal? Why?
………………………………………………………………………………………………
5. What happens to the velocity in the following cases:
Fill in the blanks:
a) Galileo demolished that the notion that a ____________ is necessary to keep an object
moving.
b) ____________ is the force acting between materials that touch as they move past
each other.
c) Galileo argued that only when ___________ is present is a force needed to keep an
object moving.
d) If there is no ______________ the ball moved horizontally would ______________.
3
