PSLE Science: Flexibility of Materials Quiz

What was the main objective of the experiment discussed in the video?

• To measure the length of different planks

• To test the weight of different planks

• To determine the color of different planks

• To test the flexibility of different planks

What did the students initially think about the plank with the greatest distance from the center to the ground?

• It was the most flexible

• It was the least flexible

• It was the heaviest

• It was the longest

Which plank was actually the most flexible according to the experiment results?

• Plank P

• Plank S

• Plank Q

• Plank R

Why was the initial assumption about plank S being the most flexible incorrect?

• Because it was the lightest plank

• Because it was the heaviest plank

• Because the results showed the distance from the center to the ground

• Because it was the longest plank

What should be considered to determine the flexibility of a plank in this experiment?

• The distance from the center of the plank to the ground

• The color of the plank

• The weight of the block placed on it

• The length of the plank