Standard Science Primary 6 Interactions

Siti pushed a wooden block across four different surfaces with the same amount of force. She measured the distance moved by the block. On which surface was the frictional force the GREATEST?

A Surface A: 15 cm
B Surface B: 45 cm
C Surface D: 30 cm
D Surface C: 10 cm
Show Worked Solution

Worked Solution

Step 1: Frictional force opposes motion. Step 2: A greater frictional force results in the block moving a shorter distance before stopping. Step 3: Surface C had the shortest distance (10 cm), therefore it had the greatest friction.

Correct answer: Surface C: 10 cm

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

Start Free Trial — 7 Days Free