Vocabulary exercises
Text C
Text B
Text A
Unit 1. Energy
Unit 5. Fluid Dynamics 23 - 27
Unit 4. Fluid Pressure 18 - 22
Unit 3. Fluid Containment 14 - 18
Unit 2. Heat and Temperature 9 - 13
Unit 1. Energy Pages
C O N T E N T
A Forms of energy 4 - 8
B Energy efficiency
A Changes of temperature and state
B Heat transfer
A Pipes, ducts and hoses
B Tanks
C Pumps, fans and turbines
A Gauge pressure and absolute pressure
B Hydrostatic pressure and siphonic action
A Fluid dynamics and aerodynamics
B Drag
C Laminar flow and turbulent flow
D Aerofoils
Exercise 1.Read the texts A, B, C and mark the sentences true (T) or false (F)
1. Energy only can be converted from one form to another.
2. Energy in the form of movement is a type of electrical energy.
3. Energy within substances that can produce a chemical reaction is called kinetic energy.
4. Everybody knows that energy in the form of noise is called sound energy.
5. The spring in a watch, which is wound up and then progressively unwinds, is a type of mechanical energy.
6. Useful energy is used for the purpose.
7. A type of energy, which will be dissipated into the air and not used is called waste energy.
8. The amount of energy needed to do a task – for example, lifting a load to a certain height by crane – is called efficiency.
9. The amount of energy converted in order to perform tasks – in other words, the amount of work done – is measured in amperes.
10.The speed, or rate, at which work is done is called power.