Topic 1: Electrostatic_1

Two charged objects are separated by a distance d. The first charge is larger in magnitude than the second charge.

• The first charge exerts a larger force on the second charge.

• The second charge exerts a larger force on the first charge.

• The charges exert forces on each other equal in magnitude and opposite in direction.

• The charges exert forces on each other equal in magnitude and pointing in the same direction.

Two charged objects attract each other with a certain force. If the charges on both objects are doubled with no change in separation, the force between them

• quadruples.

• doubles.

• halves.

• increases, but we can't say how much without knowing the distance between them.

At twice the distance from a point charge, the strength of the electric field

• is four times its original value.

• is twice its original value.

• is one-half its original value.

• is one-fourth its original value.

Is it possible to have a zero electric field value between a negative and positive charge along the line joining the two charges?

• Yes, if the two charges are equal in magnitude.

• Yes, regardless of the magnitude of the two charges.

• No, a zero electric field cannot exist between the two charges.

• cannot be determined without knowing the separation between the two charges

Can electric field lines intersect in free space?

• Yes, but only at the midpoint between two equal like charges.

• Yes, but only at the midpoint between a positive and a negative charge.

• Yes, but only at the centroid of an equilateral triangle with like charges at each corner.

• No.

Two particles A and B have identical charge Q. For a net force of zero to be exerted on a third charged particle it must be placed:

• midway between A and B

• on the perpendicular bisector of the line joining A and B but away from the line

• on the line joining A and B, not between the particles

• on the line joining A and B, closer to one of them than the other

An electric field is most directly related to:

• the momentum of a test charge

• the kinetic energy of a test charge

• the potential energy of a test charge

• the force acting on a test charge

Choose the correct statement concerning electric field lines:

• field lines may cross

• field lines are close together where the field is large

• field lines point away from a negatively charged particle

• a charged point particle released from rest moves along a field line

which is the field for opposite charges

• 
• 
• 
• 

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

What types of charges attract?

• Positive and Positive

• Positive and Neutral

• Negative and Neutral

• Positive and Negative

Tags

NGSS.MS-PS2-3