Lab: Magnetic and Electric Fields

Question 1

Predict what would happen to the strength of the electromagnet in each situation.

Revolt · Accepted Answer

Using a battery with a higher voltage:: stronger force of attraction; Wrapping the wire around the nail only three times:: weaker force of attraction; Changing the direction of the current by reversing the battery connections:: no change; Using a plastic stick in place of the iron nail:: weaker force of attraction; Holding the nail vertically rather than horizontally:: no change

Question 2

type of material✔ charge of an objectmovement of a magnetpresence of an electric field

Revolt · Accepted Answer

charge of an object

Question 3

type of materialcharge of an object✔ movement of a magnetpresence of an electric field

Revolt · Accepted Answer

movement of a magnet

Question 4

type of materialcharge of an objectmovement of a magnet✔ presence of an electric field

Revolt · Accepted Answer

presence of an electric field

Question 5

✔ magnetwindlight source

Revolt · Accepted Answer

✔ magnet

Question 6

Use the drop-down menus to complete the passage.

Revolt · Accepted Answer

✔ an electric current; A galvanometer detects by showing needle movement in . If the wires in this galvanometer are attached to the terminals of a battery, the compass needle will move and point to the wrapped coil of wire.: an electric current; A galvanometer detects by showing needle movement in . If the wires in this galvanometer are attached to the terminals of a battery, the compass needle will move and point to the wrapped coil of wire.: a magnetic field; A galvanometer detects by showing needle movement in . If the wires in this galvanometer are attached to the terminals of a battery, the compass needle will move and point to the wrapped coil of wire.: perpendicular; A galvanometer detects by showing needle movement in . If the wires in this galvanometer are attached to the terminals of a battery, the compass needle will move and point to the wrapped coil of wire.: opposite; A galvanometer detects by showing needle movement in . If the wires in this galvanometer are attached to the terminals of a battery, the compass needle will move and point to the wrapped coil of wire.: magnet

Question 7

an electric current✔ a magnetic fielda vacuum

Revolt · Accepted Answer

✔ a magnetic field

Question 8

Throughout the reflection, make sure you have a copy of the Student Guide and your data tables. Use the drop-down menus to complete the statements.

Revolt · Accepted Answer

✔ type of material; The independent variable in Part I, the one that is intentionally manipulated, is the .: type of material; The independent variable in Part II, the one that is intentionally manipulated, is the .: charge of an object; The independent variable in Part III, the one that is intentionally manipulated, is the .: movement of a magnet; The independent variable in Part IV, the one that is intentionally manipulated, is the .: presence of an electric field

Question 9

Based on the trends you observed in the laboratory exercise, which objects would you expect to be attracted to a bar magnet? Check all that apply.a metal hammera wooden rulera plastic carthe metal frame of your chairthe paper in your notebookthe screws and nails that hold your desk together

Revolt · Accepted Answer

a metal hammer; the metal frame of your chair; the screws and nails that hold your desk together

Question 10

saw dustsifted flour✔ iron shavings

Revolt · Accepted Answer

✔ iron shavings

Lab: Magnetic and Electric Fields Answers

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