Standard Science Primary 6 Interactions

Jun Jie tested how the amount of force needed to pull a block changed on four different surfaces. Which surface most likely exerted the MOST frictional force on the block?

A Sandpaper
B Plastic
C Glass
D Polished Wood
Show Worked Solution

Worked Solution

Step 1: Frictional force is the force that opposes motion between two surfaces in contact. Step 2: Rougher surfaces create more friction. Step 3: Among the options, sandpaper is the roughest surface. Step 4: Therefore, sandpaper exerts the most frictional force.

Correct answer: Sandpaper

Want more questions like this? Superholic Lab has 10,000+ MOE-aligned questions with full worked solutions.

Start Free Trial — 7 Days Free