Tecnology Revision Flashcards
Chisel
Cold chisel
Hammer
Ball pein hammer
To mark out lines
Spring dividers
Like a compass
Old legged callipers
What are the only measurements to be used in technology
Millimetres
What type of ruler do we use
Engineers ruler
What is on the bench that clamps objects when doing work on it
Bench vice
What is used to draw lines on metal
Scriber
What is used to mark the centre of a hole for drilling
Centre punch
What plastic do we use for technology
Acrylic plastic
What makes or breaks contact in a circuit
Slide switch
What is a power supply in a circuit
Battery
What produces light when electricity passes through it
Light emitting diode
What are the 2 legs that an LED has
Positive and negative leg
What allows electricity to flow in one direction only
Diode
What has a wire made of tungsten that glows brightly when hot
Bulb
What has a shaft that spins when electricity flows through it
Motor
What stores up electricity charge and releases it
Capacitor
What acts as a switch and an amplifier base collector and emitter
Transistor
What slows down the flow of electrons measured in ohms
Resistor
What increases and decreases the resistance
Variable resistor
What increases resistance in the dark, decreases resistance in light
Light dependant
What makes noise when electricity flows through
Buzzer
