Ages 12–13🔬 Science18 verified questions on this shelf
Series vs parallel circuits
Describe and apply the rules for current, voltage, and resistance in series and parallel circuits, and explain the practical uses of each circuit type
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Question 1 of 3
A student measures the magnetic force between two identical bar magnets. The data show that when the magnets are 2 cm apart, the force is 5 N; when they are 4 cm apart, the force is 1.25 N. Which of the following changes would most increase the magnetic force between the magnets?
Question 2 of 3
A student measures the magnetic force between two identical bar magnets placed at different distances. The data are shown below:
Distance (cm) | Magnetic force (N)
2 | 8
4 | 2
6 | 0.9
8 | 0.5
Which of the following is the best question the student could ask to determine which factor most influences the strength of the magnetic force?
Question 3 of 3
Students performed two trials measuring the electric force between two charged spheres. In Trial 1, each sphere had a charge of +2 µC and were 0.10 m apart, and the measured force was 3.6 N. In Trial 2, each sphere had a charge of +2 µC and were 0.20 m apart, and the measured force was 0.9 N. Which of the following questions would best help you determine the factor that caused the difference in force between the two trials?
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