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by BlastRoom
Use test particles and field-line diagrams to determine field strength and direction.
#physics
30 questions
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The diagram shows an electric field with point P marked. A small positive test charge is placed at P. In which direction is the electric force on it?
At point P in the diagram, what is the direction of the electric field?
The diagram shows the electric field of a point charge. A negative test charge is placed at P. In which direction is the electric force on that test charge?
The diagram shows a gravitational field around a planet. A small test mass is placed at P. Which way is the gravitational force on the mass?
At point P between the two charges, in which direction is the electric field?
A small positive test charge is placed at point R between the plates shown. Which way is the electric force on it?
The diagram shows a gravitational field. At point R, what is the direction of the gravitational field?
The diagram marks points A and B near one point charge. Which point has the greater electric field magnitude?
The diagram marks three points in a planet's gravitational field. At which point is the gravitational field magnitude greatest?
The diagram marks R, S, and T in and near a plate field. Which comparison is correct?
The diagram marks A between opposite charges and B outside the pair. Which point has the greater electric field magnitude?
The diagram marks M between two equal positive charges and points A and C elsewhere. At which point is the electric field magnitude smallest?
The diagram marks P, Q, and R around one negative point charge. Which statement about field magnitude is correct?
The diagram marks points A, B, and C around two attracting magnets. Where is the magnetic field magnitude greatest?
The source label is hidden in the diagram. What source best fits the electric field-line pattern?
The source label is hidden in the diagram. What source best fits the electric field-line pattern?
The signs are hidden on two equal point charges. What are the signs of the left and right charges?
The signs are hidden on two equal point charges. What are the signs of the left and right charges?
The signs are hidden on two equal point charges. Which source produced the pattern?
The signs are hidden on two unequal point charges. Which description matches the sources?
A 4.0 kg test mass feels a gravitational force of 30 N at a point. What is the gravitational field strength there?
A positive test charge of C feels an electric force of 0.012 N. What is the electric field strength at that point?
At a point, the electric field is 250 N/C east. What force acts on a +0.040 C test charge placed there?
On a moon, the gravitational field strength is 1.6 N/kg downward. What gravitational force acts on a 0.50 kg test mass?
An electric field is 600 N/C north. What force acts on a C test charge placed in the field?
A 12 kg test mass feels a gravitational force of 42 N west at a point. What is the gravitational field strength there?
Which statement correctly defines electric field strength at a point?
Which statement correctly defines gravitational field strength at a point?
What does a field line show at a point in a field-line diagram?
Why should a test charge used to map an electric field be very small?
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Satellites and Orbits
20 questions
