Now complete the definitions (1-11) below with the units from exercise 2 and the people from the box.

Andrè Marie Ampère (1775-1836) Anders Celsius (1701-1744) Marie Curie (1867-1934) Heinrich Hertz (1857-1894) James Prescott Joule (1818-1889) Lord Kelvin (1824-1907) Georg Simon Ohm (1787-1854) Blaise Pascal (1623-1662) Sir Isaac Newton (1643-1727) Count Alessandro Volta (1745-1827) James Watt (1736-1819)

 

1. A __________ is a unit of pressure equal to one Newton per square metre. It’s named after __________ , a French scientist.
2. A __________ is a unit of force. It’s named after __________ , an English mathematician.
3. __________ is the temperature scale that has the freezing point of water as 0°C and the boiling point as 100°C. The scale was developed by a Swedish astronomer, __________ .
4. A __________ is an amount of electric power. It is equal to one joule per second. It’s named after __________ , a Scottish engineer and inventor.
5. A __________ is a unit of electric force. It’s named after __________ , an Italian physicist and pioneer in the study of electricity.
6. An __________ is a unit of electric current. It’s named after __________ , a French mathematician and physicist, a pioneer in electrodynamics.
7. An __________ is a unit of electrical resistance named after __________ , a German physicist.
8. A __________ is a unit of energy named after __________ , a British physicist.
9. __________ is the temperature scale that registers absolute zero (-273.15C) as 0°K. It’s named after __________, a British scientist.
10. A __________ is a frequency equal to one cycle per second. It’s named after __________ , a German physicist.
11. A __________ is a unit of radioactivity. It’s named after __________ , a Polish-born chemist who discovered radioactivity in several elements.

 

4. Read the sentences from exercise 3 again and find the words that mean:

 

1. A person who studies the elements and their compounds.
2. A person who studies the universe.
3. A person who studies the physical properties of materials.
4. A person who thinks of new machines.
5. A person who develops new ideas about a subject.