Vocabulary 1
The ability to cause changes in matter.
Energy
What kind of charges attract?
Opposite charges
What are the charges in two balloons that are touching?
One is positive, one is negative.
I put a slice of bread in the toaster and turn it on. Which energy transformation did I use to make the toast?
electrical energy to heat energy
Energy an object has because of its motion.
Kinetic energy
Energy that is stored in matter and that can be released as a chemical reaction.
Chemical Energy
What kind of charge does an electron have? a neutron? a proton?
negative
neutral
positive
I rub a wool cloth on a balloon to give it a negative charge. What will happen when I hold the balloon near a wall and why?
The balloon will stick to the wall because a negatively charged object is attracted to an uncharged object.
Which energy transformation occurs when a fan is plugged into a wall?
electric energy to energy of motion
A device that converts electrical energy into mechanical energy.
Electric motor
Energy and object has because of its position or condition.
Potential Energy
If you remove an electron from a neutral atom, what kind of charge will the atom have?
a positive charge
Why do two socks sometimes stick together in a dryer?
Electrons move from one sock to another.
electric energy to motion energy
When electric charges flow in a steady path.
Electric current
Energy caused by the movement of electric charges.
Electric Energy
What is the electric charge of a neutral atom from which an electron has been removed?
positive
To conserve energy, what type of day would be the most optimal day to hang laundry?
warm and sunny
What do electrical appliances get from electrical outlets?
electricity
a device in which current produces magnetism.
The total energy of motion and position of an object.
Mechanical Energy
How does a charged object react with a neutral object?
They attract to eachother.
light energy
What is the difference between and insulator and a conductor?
An insulator DOES NOT have electrons, a conductor DOES have electrons.
A device that converts kinetic energy to electrical energy.
Generator