1.How does a compass work for navigation?
2. What direction do the magnetic field lines go when drawn around a magnet?
3. Define a permanent magnet.
4. Describe a method for plotting the magnetic field lines around a magnet.
5. Convert the following number to standard form - 1240000.
Describe the factors that could effect reaction time (3).
What happens when a current flows in a conducting wire?
What does theright hand grip rule shows us for a wire?
What is a solenoid?
What does theright hand grip rule shows us for a solenoid?
What is an electromagnet?
How can we increase the strength of an electromagnet?
What happens when a current flows in a conducting wire?
What does theright hand grip rule shows us for a wire?
What is a solenoid?
What does theright hand grip rule shows us for a solenoid?
What is an electromagnet?
How can we increase the strength of an electromagnet?
Choose the correct diagram:
Choose the correct diagram:
Choose the electromagnet that will pick up the most paper clips:
I can increase the strength of an electromagnet by...
1. Suggest three factors that affect the strength of the magnetic field around an electromagnet.
2. Describe how increasing the number of coils on a solenoid affects the strength of the magnetic field around the wire.
3. Explain how to work out the direction of a magnetic field around a straight wire.
4. Explain how to work out the direction of a magnetic field around a solenoid.
5. Draw an example of the magnetic field around a solenoid. Label clearly the flow of current and the direction of the magnetic field using arrows.
1. What happens when a current flows in a conducting wire?
2. What does theright hand grip rule shows us for a wire?
3. What is a solenoid?
4. What does theright hand grip rule shows us for a solenoid?
5. . What is an electromagnet?
6. How can we increase the strength of an electromagnet?