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Worksheets

Unit 2

Total questions: 39

Worksheet time: 39mins

Name
Class
Date
1.

getting more responsibility and authority, to move forward in development, to become better

(a)  

2.

electronic equipment that increases strength of signals passing through it

(a)  

3.

the act of putting to a special use or purpose: the application of common sense to a problem.

(a)  

4.

to transmit programs or signals from a radio or television station.

(a)  

5.

in a way that is concerned with buying, selling, and making a profit.

(a)  

6.

a part of a mechanical or electrical system

(a)  

7.

A material that allows heat and electricity to pass through it.

(a)  

8.

A flow of electric charge.

(a)  

9.

need

(a)  

10.

A process of improvement

(a)  

11.

Tool or piece of equipment, a machine that does a particular job

(a)  

12.

to uncover, reveal, make known

(a)  

13.

the arrangement of a feature, the dissemination of power from power source to where it is needed.

(a)  

14.

negatively charged particle

(a)  

15.

The science of using electric current to process or transmit information.

(a)  

16.

similar definition for a component. It is a part of a system or whole device

(a)  

17.

the threadlike conductor, often of tungsten, in the bulb that is heated to incandescence by the passage of current.

(a)  

18.

the basis from which an idea or situation develops

(a)  

19.

A device used to convert mechanical energy into electrical energy.

(a)  

20.

A network of lines that cross each other to form a series of squares or rectangles.

(a)  

21.

(of light) produced by incandescence.
glowing or white with heat.
intensely bright; brilliant.

(a)  

22.

the process by which an electrical conductor becomes electrified when near a charged body, by which a magnetizable body becomes magnetized when in a magnetic field

(a)  

23.

to cover, line, or separate with a material that prevents or reduces the passage, transfer, or leakage of heat, electricity, or sound

(a)  

24.

A group of tiny transistors and electric wires built on a silicon wafer, or chip.

(a)  

25.

to make something for the first time

(a)  

26.

an electric device, often with a glass covering, that emits light

(a)  

27.

an integrated circuit that contains all the functions of a central processing unit of a computer.

(a)  

28.

a group of two or more computer systems linked together

(a)  

29.

Freedom from danger, risk, or injury.

(a)  

30.

an element or compound that conducts electric current better than an insulator does but not as well as a conductor does

(a)  

31.

a sound or an action that sends a message

(a)  

32.

A device for making, breaking, or changing the connections in an electrical circuit.

(a)  

33.

A skillful or special way of doing something that may be difficult or complicated

(a)  

34.

A device that used electrical signals to send messages quickly over long distances

(a)  

35.

A small electronic device used in a circuit as an amplifier or switch.

(a)  

36.

a vacuum tube that has three electrodes

(a)  

37.

an empty space with no particles and no pressure

(a)  

38.

The difference in electrical potential energy between two places in a circuit.

(a)  

39.

a form of computer networking or other communication that uses radio signals and microwaves to transmit data

(a)