Questions
What are the 5 forms of energy?
Mechanical, Thermal, Chemical, Nuclear, Electromagnetic
Give 3 examples of Kinetic energy.
A thrown ball, a person in motion, a pencil falling off a table, and more.
Energy(and units)
Ability to do work(Joules)
Friction
When 2 uncharged objects rub together
Current Electricity(and units)
The continuous flow of electrical charges through a material(Amperes)
What does E=MC2 mean?
Energy= Mass x The speed of light2
Give me 3 examples of potential energy
A person on the top of a slide, A spring, a rock on the edge of a cliff, and more
Work(and units)
Exerting a force over a distance to move an object(Joules)
Law of Conservation of energy
Energy cant be created or destroyed
Voltage(and units)
Resistance
The electric force that causes electrons to flow(Volts)
The measure of how difficult it is for charges to flow through an object
Name 4 things a circuit might include
Conducting wires, a switch, appliances, and source of electrical energy like a battery
What are 3 materials are good conductors?
Gold , copper, silver
Kinetic Energy
Potential Energy
Energy of motion
Energy of position/Stored energy
Static Electricity
The build-up of charges in an object, this charge builds-up but doesn't flow
Ohms law
Current, Voltage and Resistance in circuits are always related
When a current passes through a wire what is created?
A magnetic field
What are 3 materials that are good insulators
Rubber, plastic, glass
Gravitational potential energy
Potential energy dependent on height
Circuit
A switch
A complete unbroken path that charges can flow through
A device used to open or close a circuit
Electrons
Has a negative charge, if something gains electrons it becomes more negative, if it loses electrons it becomes more positive
What types of charges attract, and which repel?
Opposite charges(- and +) attract and 2 of the same charges (- and -)(+ and +) repel.
Whats the formula for Gravitational potential energy?
Weight x height
Conductor
Insulator
Materials through which charge can flow easily
Materials that don't allow charge to flow
Series Circuit
Parallel Circuit
A circuit in which appliances are connected together by a single wire
A circuit in which 2 or more appliances are connected so that the current flows through each one separately
Magnet
Magnetic Field
Any material that attracts iron
The area of magnetic force around a magnet