Share Science 3 p.510-516
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What can cause you to get a shock?
static electricity
What are the two types of electrical charges?
positive and negative charges
What is an electrical charge?
a property of matter
What is a build up of an electrical charge?
static electricity
What happens when you rub a balloon on a sweater?
negative particles move from the sweater to the balloon
What does a positively charged object pull?
a negatively charged object
What do objects with positive charges do to each other?
push each other away
Why does a balloon stick to the wall after rubbing it on a sweater?
the balloon is negatively charged and attracts the positively charged particles on the wall
Why do clothes stick together when they come out of the dryer?
the positive and negative particles attract each other in the clothes
What is a flow of charged particles called?
electric current
Energy from electric currents can be used to do what in your home?
power light, computer, hair dryers, and any other machine that is plugged into the plug on the wall
What do head phones turn electrical energy into?
sound
What does a toaster turn electrical energy into?
heat
What is a circuit?
made of parts to allow an electric current to flow
What does a switch do?
it can open or close an electric current
What is a closed circuit? give an example
when electric current can flow
