Photo AI
1 (a) Figure 1 shows a paint sprayer - Edexcel - GCSE Physics - Question 1 - 2019 - Paper 1
Question 1
1 (a) Figure 1 shows a paint sprayer. The paint drops have a positive charge because the sprayer A removes electrons from the paint drops B adds electrons to the p... show full transcript
Worked Solution & Example Answer:1 (a) Figure 1 shows a paint sprayer - Edexcel - GCSE Physics - Question 1 - 2019 - Paper 1
Step 1
The paint drops have a positive charge because the sprayer
Answer
The correct answer is B: adds electrons to the paint drops. This charging mechanism happens when the paint sprayer causes a negative charge to be imparted on the paint drops by injecting additional electrons, leading to a net positive charge on the drops as they leave the sprayer.
Step 2
Explain how charging the paint drops changes the shape of the spray pattern.
Answer
Charging the paint drops causes them to repel each other due to like charges. This repulsion increases the dispersion of the drops as they exit the sprayer, resulting in a finer mist with a more uniform spray pattern. In contrast, the uncharged drops from Sprayer X experience less repulsion, leading to a more concentrated and less even pattern.