What are the four factors that impact the strength of an electromagnet?
1. Core Material 2. # of coils 3. # of batteries 4. Wire thickness
What is the net charge of this apple?
-2 (negatively charged)
What is the net charge of this soccer ball?
Net Zero (Neutral)
What is the net charge of this shirt?
+4 (positively charged)
If an object has more positive charges, what would the overall charge of the object be?
Positive
If an object has less positive charges, what would the overall charge of the object be?
Negative
If an object has the same amount of positive and negative charges, what would the overall charge of the object be?
Zero Net Charge (Neutral)
What will happen if a north pole of one magnet is next to a north pole of another magnet?
They will repel one another.
What will happen if a south pole of one magnet is next to a south pole of another magnet?
They will repel one another.
What will happen if a north pole of one magnet is next to the south pole of another magnet?
They will attract one another.
True or False: All materials have magnetic properties.
False
True or False: Earth's core is a magnet.
True
True or False: Magnetic forces can only be attractive.
False
What are the two factors that impact the strength of gravity?
Mass and Distance
The greater the mass, the _________________ the gravitational force.
Greater
The greater the distance, the __________________ the gravitational force.
Weaker
