Physics Class 9 Practical 4 Important Viva Questions with Answers (Angle Iron)
PRACTICAL 4 To find the acceleration of a ball rolling down an angle iron by drawing a graph between 2S and T2 VIVA VOCE 1. How do you set up the experiment to find the acceleration of a ball rolling down an angle iron? Ans: Place the angle iron on a smooth surface, ensuring it is securely fixed. Release the ball from the top of the angle iron and measure the time it takes to travel a known distance. 2. What is the purpose of drawing a graph between \( 2S \) and \( T^2 \)? Ans: The purpose is to determine the acceleration of the ball by analyzing the relationship between the square of the time taken (\( T^2 \)) and twice the distance traveled (\( 2S \)). 3. How do you measure the distance traveled by the ball (S)? Ans: Measure the horizontal distance covered by the ball from its starting point to its final position. 4. How do you measure the time taken by the ball (T)? Ans: Use a stopwatch or a similar device to measure the time it takes for the ball to travel the known distance alon