Physics

Question 1

What units is velocity in?

Answer 1

m/s (meters per second)

Question 2

What are the units of energy?

Answer 2

J (Joules)

Question 3

What is a steam engine?

Answer 3

A machine that generates steam and converts that steam pressure into mechanical energy

Question 4

What are Empedocles’ elements?

Answer 4

Fire, Earth, Air, Water

Question 5

Who is Empedocles?

Answer 5

A Greek philosopher

Question 6

Phlogiston

Answer 6

Substances that contain invisible fluid.

Question 7

What is kinetic energy?

Answer 7

The energy of motion

Question 8

What is potential energy?

Answer 8

Stored energy

Question 9

What are the laws of thermodynamics?

Answer 9

1. Energy can’t be created nor destroyed (only change form)
2. No energy change is 100% efficient. (Some is always lost to heat)

Question 10

Which steam engine was the first commercially successful engine?

Answer 10

Savery’s Steam Engine

Question 11

What was Newcomen’s Steam Engine called?

Answer 11

Atmospheric

Question 12

Count Rumford

Answer 12

Heat and energy are equivalent

Question 13

What are the units of force?

Answer 13

Newtons (N)

Question 14

What are the units of work?

Answer 14

Joules (J)

Question 15

What are the units of acceleration?

Answer 15

m/s/s (meters per second squared)

Question 16

What are the units needed for mass when solving for potential energy?

Answer 16

kg