P4,5,6 Circuits, Mains, Particle Model Retrieval Questions

How does a material become charged? (choose 2)

• Electrons get destroyed by friction

• Becomes positively charged by gaining electrons

• Becomes negatively charged by gaining electrons

• Becomes positively charged by losing electrons

• Becomes negatively charged by losing electrons

Two objects with the same type of charge as each other will...

• Attract

• Repel

What is an electric field? (Choose 2).

• The region of space around a charged object...

• The area near a charged object...

• ...where all objects experience a force.

• ...in which another charged object will experience a force.

The electric field strength changes as you get further away from a charged object. Does it...?

• Decrease in strength

• Increase in strength

Electric current is...

• how much charge has flowed

• how much potential difference there is across a component

• rate of flow of charge

• speed of charge

Units of charge?

• C

• W

• P

• Q

Units of current?

• t

• A

• s

• V

Units of time?

• A

• Q

• C

• s

What is the same at all points when charge flows in a closed loop?

• Potential Difference

• Power

• Current

• Resistance

What happens to the current if resistance is increased and p.d. stays the same?

• Current increases

• Current stays the same

• Current decreases