Heat Transfer
What is the main way heat moves through solid metal of a spoon?
Conduction
What does this symbol represent?
Two circles with a diagonal line between them.
Open switch
Who made the light bulb?
Thomas Edison
What is kinetic energy?
the energy of an object or particle in motion
What is the electrical push that moves a charge, measured in volts.
Voltage
Why does warm air rise and cool air sinks in a room?
Convection currents form because warm air is less dense than cool.
What does this symbol represent?
4 alternating short and tall lines, with a diagonal arrow through them.
Who proved lightening was a form of electricity with his experiment with a kite?
Benjamin Franklin
If a bird is falling down, what type of energy does it have?
kinetic
Metals such as copper are commonly used for electrical wires because they are good at doing this.
Conducting electricity
True
What do these symbols represent?
A circle with an A and a circle with a V.
Who designed an alternating current system?
Nikola Tesla
What is the difference between kinetic and potential energy?
Potential energy is stored energy waiting to be used, while kinetic energy is the energy of things in motion
Connecting too many devices to one power board can cause this dangerous situation.
Overloading the circuit
Why do coastal areas have milder temperatures than inland?
Water has a high specific heat capacity and absorbs or releases heat more slowly through convection currents.
What is the difference between a parallel and series circuit?
Parallel circuits have more than one loop and series circuits only have one loop
Who defined the mathematical relationship between voltage, current and resitance?
Georg Ohm
What is the formula for calculating kinetic energy?
Energy (Joules) = mass (kg) x velocity (m/s)
This unit is used to measure electrical power and is commonly found on appliance labels.
Watts
Why does a black car get hotter in the sun than a white car?
Black surfaces absorb more of the radiation from the sun, while the white care reflects infrared radiation
True or false: If a light bulb breaks in a parallel circuit, another light bulb on the same pathway will still work.
Who formulated the law of electrolysis?
Michael Faraday?
What is gravitational kinetic energy?
Gravitational kinetic energy usually refers to the kinetic energy an object gains when it falls under the influence of gravity, converting its stored gravitational potential energy into motion
What is the difference a fuse and resistor?
A resistor limits current in a functioning circuit, while a fuse acts as a one-time safety device that breaks the circuit permanently when current gets too high