Phy 250 General Physics Exam Questions With Answers Latest Updated 2025/2026 (Graded A+)

PHY 250 General Physics Exam Questions With Answers Latest Updated 2025/2026 (Graded A+)How does an earth wire protect the user of an electrical appliance? Why are earth wires used in electrical appliances? What do you call bad-tempered bacteria? A cross culture.Give one reason why copper is used on the base of saucepans. A stretched rubber band is an example of elastic potential energy. Name one other example. What did the cross-eyed teacher say to the head teacher? I can't control my pupils! Explain the word inertia.What force draws objects away from the centre of rotation? Explain the term 'quantum entanglement'. Why can dogs hear sounds that we can't? It's said that all the matter that makes up the human race could fit in a sugar cube. Why is this?Why did the cell cross the microscope? To get to the other side. What is the hardest natural material known to man? Give one reason why scientists think the universe is expanding. What is the first law of thermodynamics?Explain the difference between a direct current (DC) and alternating current (AC). What is the difference between ammonia and pneumonia? Ammonia comes in bottles, pneumonia comes in chests. What is a supernova? Some roller