Questions

true or false. [1 M]

🎯

Test yourself on this topic

9 questions · timed · auto-graded

Question 11 Mark
There is no force between two charged objects placed at a small distance apart.
Answer
false: There is a force between charged objects. This force can be attractive or repulsive depending on the charges. But it is always present when charges are close to each other.
View full question & answer
Question 21 Mark
Due to friction, the speed of the ball rolling on a flat ground increases.
Answer
false: Friction opposes motion, so it will decrease the speed of a rolling ball.
View full question & answer
Question 31 Mark
A force is always required to change the speed of motion of an object.
Answer
true: A force is indeed always required to change the speed of motion of an object. If there is no force acting on an object, it will maintain its current speed and direction (unless it’s already at rest, in which case it will stay at rest).
View full question & answer
true or false. [1 M] - Science STD 8 Questions - Vidyadip