True or False
Heat is considered a type of kinetic energy
What is true?
100
The amount of energy it takes to lift a 102 gm object 1.0 m in the air.
What is one joule?
100
The amount of heat necessary to raise the temperature of one gram of a substance by one degree Celsius.
What is specific heat?
100
How many Joules does it take to heat 15.1 kg of glass from 15 degrees C to 45 degrees C? See table 12.1
What is 3.8 X 10 to the 5th Joules?
200
Energy that is transferred as a consequence of temperature differences
What is heat?
200
True or False
We create energy when we burn wood.
What is false
200
True or False:
In the metric system, energy is measured in Calories?
What is false?
(it is measured in joules)
200
Specific heat of water.
What is 1.000 cal/g(degree) . Celsius or
4.184 J/g(degree) . Celsius
200
The average person uses 2500.0 Cal of energy per day. How many Joules is that?
What is 1.046 x 10 to the 7th Joules?
300
The force applied to an object times the distance that the object travels parallel to that force
What is work?
300
Energy cannot be created or destroyed. It can only change form.
What is the first law of thermodynamics?
300
The amount of heat necessary to warm 1 gram of water 1 degree Celsius.
What is a calorie?
300
How to calculate heat change in terms of specific heat. (equation)
What is q = m x c x deltaT ?
300
Data points that are a little above or a little below the accepted value.
What is experimental scatter?
400
Energy that is stored
What is potential energy?
400
What can you conclude if you observe that the temperature of a vat of liquid increases over time?
What is that the substance (liquid) is gaining energy?
400
The number of joules to make one calorie.
What is 4.184 joules?
400
Why a calorimeter should always be made from an insulating material.
What is because energy should never be allowed to escape from it?
400
Heat is added to 2 identical objects that are initially at the same temperature. If the first absorbs 50.0 cal and the second absorbs 50.0 J, which gets hotter?
What is the object that absorbs 50.0 cal is absorbing more energy and will be the hottest.
500
Energy that is in motion
What is kinetic energy?
500
What type of energy do each of the following items have? Potential, kinetic, or both?
a. Gold bar
b. Sunlight
c. An apple
d. A hurricane
What is:
a. potential
b. kinetic
c. potential
d. both
500
If a 245 gm piece of copper at room temperature (25 degrees C) loses 456.7 Joules of heat, what will be its final temperature?
What is 2.0 X 10 to the first degrees C.
500
A calorimeter is filled with 150.0 g of water at 24.1 degrees C. A 50.0 g sample of a metal at 100.0 degrees C is dropped in this calorimeter and causes a temperature increase of 5.4 degrees C. What is the specific heat of the metal? Ignore the calorimeter in this problem.
What is 0.96 J/g (degrees) C
500
A 75.0 g sample of copper (c = 0.3851 J/g degrees C) is initially at 100.0 degrees C. It is dropped into a calorimeter (c = 1.40 J/g degrees C; m = 5.0 g) that is initially at 25.0 degrees C. The final temperature of the experiment is 30.0 degrees C. What mass of water is in the calorimeter?