The diagram shows the result when a student placed a magnet under a piece of paper, then sprinkled iron shavings on the paper. The iron shavings are distrubuted this way because magnets....

Question

a
have multiple magnetic fields that attract the shavings with different strengths.
b
have magnetic fields that repel magnetic materials and push the shavings away.
c
have magnetic fields that flow from one pole of the magnet to the other.
d
have uneven magnetic fields that attract the shavings in random patterns.

Answer 1

c. have magnetic fields that flow from one pole of the magnet to the other.

Answer 2

Using Coulomb's Law, if the distance between two charged objects is decreased, what happens to the electric force between them?

a
Electric force will increase
b
Electric force will decrease
c
Electric force is not affected by distance
d
Not enough information

Answer 3

a. Electric force will increase

Answer 4

Question 41
A student places a skillet on a stove. After heating for 10 minutes, the student removes the skillet from stove. Which describes the kinetic energy of the molecules in the skillet during the investigation?

a
The kinetic energy constantly increases.
b
The kinetic energy decreases and then increases.
c
The kinetic energy increases and then decreases.
d
The kinetic energy remains the same.

Answer 5

c. The kinetic energy increases and then decreases.

Answer 6

Question 42
What materials will allow electricity to flow through them?

a
conductors
b
vacuums
c
pendulums
d
insulators

Answer 7

a. conductors