Energy & Heat
The ability to do work is the definition of
Energy
_______ is a flow of electrons around a circuit
Electricity
Does light travel in straight lines?
Yes
A pair of scissors is what type of lever
Class 1
In the technological process when we recognize what is missing or needed this is called
Identification of needs
This is called the energy of motion
Kinetic energy
This type of electricity builds up in one place
Static electricity
You have glass, cardboard and wax paper. Which material is opaque?
Cardboard
You have a wheel barrow and a tweezers. Which item is a class 2 lever?
Wheel barrow
In the technology process this area involves gathering knowledge and looking up information
Research
This form of energy is transferred through direct contact
Conduction
A ______ circuit divides into 2 or more branches
Parallel circuit
On the electromagnetic spectrum what falls between infrared and ultraviolet light?
Visible light
In a class 3 lever where is the effort located
In the middle between the fulcrum and load
The bending of light is called
Refraction
In a pot on the stove there is water boiling. The water molecules transfer their energy to other water molecules through this process called
Convection
Copper, iron and silver allows electricity to pass through them. They are called
Conductors
How does sound propagate or travel?
As waves
An _______ plane is a sloping surface such as ramp.
Inclined
A doorknob is an example of a simple machine and falls under which category?
Wheel and axle
We feel the sun's rays on our skin through this process
Radiation
You have gold, steel, & iron. Which item is non magnetic?
Gold
When we hear the siren of an ambulance coming towards us and then slowly fading away in the distance this is called
The doppler effect
A car going around and around a roundabout is demonstrating which type of motion?
Circular
The reflection of sound is called
An echo