Chp 15/16 Study Guide

How many joules of heat are needed to raise the temperature of 10.0 g of aluminum from 20°C to 40°C, if the specific heat of aluminum is 0.90 J/g°C?

• 0.3 J
• 2.22 J
• 180 J
• 360

Calculate the specific heat capacity of a piece of wood if 1500 g of the wood absorbs 67,500 joules of heat, and its temperature changes 30°C.

• 0.07
• 1.5
• 30
• 3,037,500

What mass of water will change its temperature by 3C when 525 J of heat is added to it? The specific heat of water is 4.18 J/g 0C.

• 0.02
• 41.87
• 376.79
• 6,583

25.0 g of mercury is heated, increasing its temp to 130°C, and absorbs 455 joules of heat in the process. Calculate the specific heat capacity of mercury.

• 0.14
• 0.62
• 87.5
• 1,478,750

The energy of a moving object is _____________

• kinetic energy
• potential energy
• chemical energy
• nuclear energy

An example of an object having elastic potential energy is ________________

• a stretching spring
• books on a shelf
• a moving arrow
• a falling star

If the speed of an object doubles, its kinetic energy _____________

• stays the same
• doubles
• triples
• is half

An example of electromagnetic energy is _____________

• a falling rock
• a stretching spring
• a speeding train
• sunlight

Energy stored in the bonds between atoms is called _________________

• kinetic energy
• mechanical energy
• nuclear energy
• thermal energy

Which of the following has the MOST potential energy?

• A car driving on the highway.
• A man on the top of a ladder.
• An orange sitting on top of a table.
• A ball in the pitcher's hand waiting to be thrown