Year 9 Electronics
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9 electronics on the work weve done so far
- 1.What does led stand for
- A.
Light emitting device
- B.
Long emitting diode
- C.
Light emitting diode
- 2.How many legs has an led got
- A.
One
- B.
Two
- C.
Three
- 3.How can we tell which one is the positive leg
- A.
Both the same size
- B.
Positive one is longer than the other
- C.
Negative one is longer than the other
- 4.What does a resistor do in a circuit
- A.
Resists the flow of current
- B.
Blows up an led
- C.
No purpose, there to look good
- 5.What should we be careful with when working with electronics
- A.
Plastics
- B.
Water
- C.
Overhead powerlines
- D.
Overloaded sockets
- 6.Why do we use a fuse tester
- A.
To prevent accidents
- B.
To look good
- C.
No purpose
- D.
Test faulty electrical equipment
- 7.What battery do we use in our circuit
- A.
1.5v
- B.
9v
- C.
4v
- D.
0.9v
- E.
200v
- 8.What are the safety rules of soldering
- A.
Watch out for the heat
- B.
Wear an apron
- C.
Wear goggles
- D.
Dont breath in fumes
- E.
Dont touvh the heat element
- 9.What did we use to put the holes in the circuit board
- A.
Coping saw
- B.
Pcb drill
- C.
Pillar drill
- 10.What do we use to draw circuits on the computer
- A.
Crocodile clips
- B.
Crocodile technology
- C.
PCB WIZARD
- 11.What is the first step of vacuum forming
- A.
Place in your mould
- B.
Lower the handle
- C.
Turn on the vacuum
- D.
Take out your mould
- E.
Raise handle
- 12.Name me three workshop safety rules
- A.
Wear an apron
- B.
Stay inside the yellow lines
- C.
Wear goggles
- D.
Shout out
- E.
No running
- 13.What are the two main types of plastics
- A.
Thermosets and thermos
- B.
Thermosetting and thermosets
- C.
Thermosetting and thermos
- D.
One cast and two set
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