Unit 3: Energy Test Review

Heat flows from _______ to ______ objects

• cooler to warmer
• warmer to warmer
• warmer to cooler
• cooler to cooler

Heat is measured in 

• joules
• grams
• degrees celcius

The transfer of thermal energy between objects of different temperatures is called...

• temperature
• heat
• internal energy
• none of these

Tags

NGSS.HS-PS3-4

Heat travels from the sun to the earth by the process of...

• conduction
• convection
• radiation
• insulation

The temperature of a glass of cold water will eventually...

• Match the temperature of the surrounding environment.
• Always be colder than the surrounding environment.
• Become warmer than the surrounding environment.
• Never change temperature.

Tags

NGSS.HS-PS3-4

In an endothermic reaction the system is releasing energy.

• True
• False

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

The diagram represents two solids and the temperature of each. What occurs when the two solids are placed in contact with each other?

• Heat energy flows from solid A to solid B. Solid A decreases in temperature

• Heat energy flows from solid A to solid B. Solid A increases in temperature

• Heat energy flows from solid B to solid A. Solid B decreases in temperature.

• Heat energy flows from solid B to solid A. Solid B increases in temperature.

Tags

NGSS.HS-PS3-4

On the heating curve, which line segment represents an increase in potential energy and no change in average kinetic energy?

• Line segment AB

• Line segment BC

• Line segment CD

• Line segment EF

Exothermic reactions are reactions that

• release heat
• do not involve heat
• absorb heat
• take place instantaneously

Tags

NGSS.HS-PS1-4

The specific heat of aluminum is 0.21 J/g°C. Heat is released when a 10 g piece of aluminum foil is taken out of the oven and cools from 100° to 50°. What equation would you use to solve this problem

• q=m x Hf

• q = m x Hv