Energy and Energy Transformations
What is the form of energy associated with motion?
Kinetic Energy
What type of heat transfer occurs through direct contact?
Conduction
What is Electricity?
The flow of Electrons
What are the two ends of a magnet called?
North and South
What two things factors affect gravity?
Mass and Distance
How can you increase an object's Potential energy?
Increase the Mass or Move it to a Higher position
What is the transfer of heat within a fluid or gas called?
Convection
Name a material that is a good conductor of electricity.
Metals
How can you increase the strength of an electromagnet?
Increase the number of coils or the electrical current
If I increase the mass of an object, what happens to the force of gravity?
It increases
Electric to Light and Sound...some Thermal
What type of heat transfer does not need something for it to travel through?
Radiation
Why is rubber used to coat electric wires?
They do not allow an electric current to pass through them
Describe how opposite magnetic poles interact with each other.
They would attract
Give an example of Chemical Energy
Battery, Food, Etc...
What is the Law of Conservation of Energy?
Energy cannot be created or destroyed only transformed into another form.
Why does hot air rise?
It is less dense
What would happen if you put two negative charges next to each other?
They would repel
What is the difference between a permanent magnet and an electromagnet?
You can turn off an electromagnet
Describe how insulation helps in conserving heat in a building.
It is trapping heat in the building
Why won't a pendulum swing forever?
It transforms its Kinetic Energy into other forms.
What is the difference between a conductor of heat and an insulator?
A conductor transfers heat well, while the insulator traps it.
What type of circuit allows for electrons to fully pass through and turn on light bulbs?
A closed circuit
What two factors affect the strength/ability of a regular magnet?
The Size of the magnet and Distance from the other object
How does a hot air balloon utilize the principle of heat transfer?
The hot air ballon heats up the air causing it to rise