A magnet produces a magnetic field. Which diagram shows the magnetic field pattern around a bar magnet? Select the correct diagram by checking the box to the right of the diagram. Pay special attention to which way the arrows are pointing in each diagram.
Question 2
2.
Similar poles of a magnet repel each other.
Question 3
3.
All metals are magnetic.
Question 4
4.
If a magnet with two poles is cut in half, it will have only one pole
Question 5
5.
What is the relationship between magnets and electricity?
Question 6
6.
Which of the following creates a magnetic field?
Question 7
7.
What is created when a current is run through a coil of wire wrapped around an iron core? (type one word only)
Question 8
8.
Explain the difference between a motor and a generator?
Question 9
9.
What is an example of a machine that contains both a motor and a generator?
Question 10
10.
A magnetic force cannot act on an electron when it moves...
Question 11
11.
The north-seeking arrow of a compass points to the magnetic north pole.
Question 12
12.
What are two ways to increase the strength of the magnetic field of an electromagnet?
Question 13
13.
What are some examples of energy sources that spin turbines, which power generators in electric power plants? (select all that apply)
Question 14
14.
EXTRA CREDIT: Which scientist discovered that an electric current produces a magnetic field?