3. • learning words and phrases related to the energy forms and electricity
types
• reviewing modal verbs and their uses
• practice listening, writing, reading and speaking skills
4. • What types of energy are there?
• How do engineers make cars safer?
• What is the difference between kinetic and potential
energy?
LESSON A: ENERGY
5. • decelerate (v.) - move slowly ≠ accelerate (v.)
• stretch (v.) - become longer = extend (v.)
• transfer (v.) -to convey or remove from one place, person, etc., to another = move (v.)
• exert (v.) -to put forth or into use, as power; exercise, as ability or influence
• seatbelt (n.) -a belt or strap in an automobile, airplane, etc.
• distance (n.) -the extent or amount of space between two things, points, lines, etc.
• Gs (gravitation) - the force of attraction between any two masses
• injury (n.) - harm or damage that is done or sustained
6.
7. • Task 2: 1. F 2. F 3. T
• Task 3: 1. stopping distance, decelerate 2. potential energy, kinetic energy 3. force, work
• Task 4: 1. a 2. d 3. c 4. b
• Task 7: 1. b 2. d
• Task 8: 1. safer than 2. stopping distance 3. kinetic energy
4. belt 5. pretty good 6. testing
• Task 11: 1. work 2. stopping 3. seatbelt 4. less 5. light 6. sound
• Task 12: 1. dangerous 2. distance 3. atomic 4. reaction 5. electrical 6. stretch
7. natural 8. intelligence 9. strengthened 10. anger
(pages: 44-46)
8.
9. A note on stretching seatbelts
Write about:
• how to extend a passenger’s stopping distance
• what effect this will have on energy transfer
• how this will affect safety
14. 1. What electrical equipment do you use that runs on DC current?
2. What electrical equipment do you use that runs on AC current?
3. What advice do manufacturers usually give for using electrical equipment
safely?
15. • circuit- the complete path of wires and equipment along which an electric current flows
• current- the flow of electricity through a wire
• amperes- the unit for measuring electric current
• volts- a unit for measuring the force of an electric current
• electron- an elementary particle that is a fundamental constituent of matter
• conductor- a substance that allows electricity to pass along it or through it
• voltage- electromotive force or potential difference expressed in volts
• resistance-the opposition of a piece of electrical equipment to the flow of direct current
• nichrome- a brand name for a nickel-base alloy, containing chromium and iron, having high electrical
resistance and stability at high temperatures
16. Circuit essentials:
• Task 2: 1. circuit 2. conductor 3. resistance 4. volts 5. current 6. ampere
• Task 3: 1. Usual answers would be 100-120 V or 220-240 V. 2. an electric oven
3. Many metals: copper, steel, aluminum; the presence of water increases conductivity.
Number talk:
• Task 1: 1. Resistance 2. unit 3. 6 volts 4. 3 amperes 5. 2 6. 1000 ohms 7. 1000000 ohms
It’s my job:
• Task 1: 1. vegetables and milk 2. tinned vegetables and dairy products 3. ordering electrical equipment
4. pumps, food mixers, freezers, air conditioning equipment
• Task 3: 1. the Project Department 2. support for process improvements and factory extensions
3. transformers, capacitors, relays, switches 4. because bad hygiene can lead to the food making consumers ill
5. flour explosion
Listening: Electrical safety
• Task 1: 1. c 2. b 3. d 4. a
• Task 2: 1. b 2. a 3. c 4. a 5. b 6. c 7. b 8. a 9. b
(pages: 47-50)
22. Language spot: Warnings and instructions
• Task 1: 1. remember 2. don’t take 3. take 4. work
5. know 6. check
• Task 3: 1. should 2. should 3. shouldn’t 4. should
5. shouldn’t 6. shouldn’t
Giving instructions and warnings
• Task 1: 1. f 2. a 3. g 4. b 5. e 6. c 7. d
(pages: 50-51)
