PS 16.3 Formative

T or F: The two main types of heat engines are the internal combustion engine and the solar combustion engine.

• true

• false

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-5

A heat engine in which the fuel burns inside the engine.

• internal combustion engine

• external combustion engine

• steam engine

• heat pump

Tags

NGSS.HS-PS3-4

In a four-stroke engine, the stroke in which the spark plug ignites the fuel-air mixture, the gas expands and drives the piston down.

• intake stroke

• compression stroke

• power stroke

• exhaust stroke

In a four-stroke engine, the stroke in which a mixture of air and gasoline vapor enters the cylinder.

• intake stroke

• compression stroke

• power stroke

• exhaust stroke

How much of the fuel energy in a gasoline engine is converted to work?

• 33%

• 75%

• 90%

• 100%

Tags

NGSS.HS-PS3-3

Most heating systems use ​ (a)   to distribute thermal energy

• convection
• conduction
• radiation
• steam

Tags

NGSS.MS-PS3-3

A device that reverses the normal flow of thermal enregy.

• heat pump

• baseboard heater

• central heating system

• forced-air heating system

Tags

NGSS.MS-PS3-3

T or F: Heat pumps must do work on a refrigerant in order to reverse the normal flow of thermal energy.

• true

• false

Tags

NGSS.MS-PS3-3

A fluid that vaporizes and condenses inside the tubing of a heat pump.

• steam

• refrigerant

• gasoline

• water

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

A ​ (a)   heating system heats many rooms from one central location.

• central
• steam
• radiant
• internal

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4