1. machine / engine
a This car has a very powerful ____________, so you'll have to drive carefully.
b To operate the coffee ____________, just put your money in here and press the button.
2. electric / electrical
a We need to buy a new ____________ cooker as soon as possible.
3. b All the ____________ equipment in this room needs to be replaced.
4. appliance / device
a A vacuum cleaner is a(n) ____________ which almost every household possesses.
b My car has a(n) ____________ which checks whether everyone is wearing a seat belt.
5. mechanic / technician
a My father works as a ____________ in the microbiology unit of the hospital.
6. b A ____________ looked at my car the other day and said that I should get a new one.
7. invent / discover
a I am sure that the astronomers will ____________ much more about distant galaxies in the future.
b Do you think someone will ____________ perpetuum mobile?
8. fix / correct
a Can we find someone to ____________ the video? It doesn't work properly.
b I've noticed a number of errors in this report. Can you ____________ them, please?
12. Check (+) the sentence that uses the underlined word correctly.
1 __A A machine is a branch of instruction or knowledge.
__B To d esign something is to plan how it will look and function.
2 __A To i nspect something is to examine it carefully.
__B Mathematics is a science that studies matter.
3 __A Engineering is the study of quantity, structure, and change.
__B To develop something is to create it or cause it to grow.
4 __A Technology is a type of machine that makes life easier.
__B Physics is the art of using the knowledge gained by science.
5 __A A machine is a device that has multiple parts and does work.
__B A d iscipline is a person who applies scientific knowledge.
6___ A Cotton is a synthetic material.
___ B Glass is brittle and can shatter.
7 ___ AYou can stretch rubber because it had very low tensile strength.
___ B Foam retains heat well and is a good conductor.
8 ___ AMost glass is transparent.
___ B Metals have low levels of hardness.
Complete the sentences using the words in the box.
| metal non-metal | metallic non-metallic | ferrous non-ferrous |
1. Carbon (C) is a _______________.
2. Copper (Cu) is a _______________ metal.
3. Aluminium (Al) is a common _______________.
4. Steel (Fe+C) is a widely used _______________ metal.
5. Although it is used in steel, carbon is _______________.
6. Aluminium is relatively lightweight for a _______________ material.
Match the words (1-6) with the definitions (A-F).
| 1 ___ inertia 2 ___ Newton's second law 3 ___ vector 4 ___ Newton's first law 5 ___ acceleration 6 ___ motion | A law stating that force equals mass times acceleration B the state of an object when it is moving C a force that keeps an object in the same position D an increase in an object's speed E a quantity that has both a size and a direction F law stating that objects will remain at rest or move in a straight line unless a net force acts upon them |
