A. Directions: Read the situation below. Choose the letter of the correct answer. 1. Which is an example of a temporary magnet? A bar magnet B. horseshoe magnet C. electromagnet D. magnetite 2. Which can increase the strength of an electromagnet? A increase the number of batteries B increase the number of coils C. change core into a bigger one D. all of the above 3. Which does NOT tell about an electromagnet? A The less number of battery, the stronger it is. B. The bigger the core, the stronger it is C The more batteries, the stronger it is D. The more coils of wire in the core, the stronger it is 4. Which is true about an electromagnet? A. It is permanent B. It is temporary C. It always has electricity D. It cannot be made stronger 5. You want to increase the strength of your electromagnet. What should you do? A Decrease the amount of electricity. B. Remove the iron core C Stop the flow of electricity D. Increase the turns of the wire. .​