Which of the following tables accurately shows the objects that are conductors and insulators?
A: Rubber band: Yes
Crayon: No
Wooden Popsicle Stick: No
Eraser: No
Dime: Yes
Staple: Yes
Penny: Yes
Aluminum Foil: No
B: Rubber Band: No
Crayon: No
Wooden Popsicle Stick: No
Eraser: No
Dime: Yes
Staple: Yes
Penny: Yes
Aluminum Foil: Yes
Table A accurately shows the objects that are conductors and insulators.
Is this correct? If so, please explain
No, Table A does not accurately show the objects that are conductors and insulators. Based on the information provided, the correct table would be:
B:
Rubber band: No
Crayon: No
Wooden Popsicle Stick: No
Eraser: No
Dime: Yes
Staple: Yes
Penny: Yes
Aluminum Foil: Yes
This table correctly identifies rubber band, crayon, wooden popsicle stick, and eraser as insulators, while dime, staple, penny, and aluminum foil are identified as conductors. Conductors allow electricity to flow through them easily, while insulators do not.
Select all of the following statements that are true.
Electrostatic force can only be repulsive.
Gravitational and electrostatic force can only be attractive.
Electrostatic force can be attractive or repulsive.
Gravitational force can only be attractive.
Gravitational force can only be attractive and
electrostatic force can only be repulsive.
Gravitational force can be attractive or repulsive.
The following statements that are true are:
- Electrostatic force can be attractive or repulsive.
- Gravitational force can only be attractive.
Two magnets are aligned properly and it causes them to stick together tightly. Even though the magnetic force between the two magnets is much stronger, there is also gravitational force pulling them together.
False
True
True.
Sarah the scrap-hauler loves hauling scrap metal with her electromagnet shown below, but her electromagnet isn't strong enough. What is one thing she could do to make her electromagnet stronger? Drag the best answer into the white box.
DRAG & DROP THE ANSWER
switch out the metal coils for lightweight plastic coils
decrease the amount of current in the electromagnet
increase the magnet's number of turns
decrease the magnet's number of turns
Increase the magnet's number of turns
Two negative electrical charges are constrained so that they are very close together. Just after the charges are released their electrical potential energy will… their kinetic energy will….and they will travel….other each
increase; decrease; toward
decrease; decrease; toward
decrease; decrease; away from
decrease; increase; toward
increase; decrease; away from
decrease; increase; away from