P5.ACD Progress Check 3

QuizÂ by ALEJANDRO URBY

High School
Physics (2017)
Texas Essential Knowledge and Skills (TEKS)

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### Measures 1 skill fromHigh SchoolPhysics (2017)Texas Essential Knowledge and Skills (TEKS)

112.39.c.5.c

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5 questions
• Q1
How far away are the spheres in meters?
3m
30m
0.03m
0.3m
120s
112.39.c.5.c
• Q2
What equation can be used to calculate the magnitude of the electric force between the two equally charged spheres?
Fe=kq1q2/r^2
F=ma
F=-kx
Fg=Gm1m2/r^2
120s
112.39.c.5.c
• Q3
Based on the information above, how much electrostatic force occurred between the spheres in the experiment? (k=9x10^9)
9x10^25
9x10^17
3x10^24
3x10^19
120s
112.39.c.5.c
• Q4
If the distance between the spheres was halved, how would the force be affected?
One fourth
Halved
Doubled
120s
112.39.c.5.c
• Q5
If these two spheres are brought close together and then let go, where would they move and why?
They would move apart because they have equal charges
They would move towards each other because they have equal charges
They would move apart because they have opposite charges
They would move towards each other because they have opposite charges.
120s
112.39.c.5.c

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