Standard Science Primary 6 Interactions

Ravi wants to reduce the friction between a heavy box and the floor. Which of the following would NOT help?

A Using a trolley with wheels
B Using a rougher carpet
C Applying oil to the floor
D Placing rollers under the box
Show Worked Solution

Worked Solution

Step 1: Friction is higher on rougher surfaces. Step [2-9]: Using a rougher carpet increases friction rather than reducing it. Step [2-9]: Therefore, it is the correct answer for what would NOT help.

Correct answer: Using a rougher carpet

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

Start Free Trial — 7 Days Free