Task 1. True or false: 1) Stephenson was born in 1781 in Scotland. 2) He invented the 1st miner's safety laws. 3) Stephenson's early locomotives used to carry people. 4) He designed "Rocket" in 1892. 5) Joule was an outstanding psychologist. 6) He formulated the law of electric heating. 7) The unit of energy is called after him. 8) Joule found that temperature of a gas rises when it expands without doing any work.

Task 1. True or False:

• 1. Stephenson was born in 1781 in Scotland. - True
• 2. He invented the 1st miner's safety laws. - True
• 3. Stephenson's early locomotives used to carry people. - False (Stephenson's early locomotives were primarily designed for freight and not for carrying passengers.)
• 4. He designed "Rocket" in 1892. - False (The "Rocket" was designed by Robert Stephenson and his company and operated in 1829.)
• 5. Joule was an outstanding psychologist. - False (James Prescott Joule was a physicist.)
• 6. He formulated the law of electric heating. - True (This refers to Joule's law of heating.)
• 7. The unit of energy is called after him. - True (The SI unit of energy is the joule.)
• 8. Joule found that temperature of a gas rises when it expands without doing any work. - False (When a gas expands without doing work (free expansion), its temperature does not change in an ideal gas, and may decrease in a real gas.)