Download energy test - mrcarlsonschemistryclass

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Date__________
27
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ENERGY TEST REVIEW
1) ___________ energy from the sun is converted into chemical energy stored by
plants.
2) When a ball is dropped, the _____________ energy that is has before is
transferred into kinetic energy as it falls?
3) If a room is at 25°C, what is the temperature in Kelvin?
4) A car uses potential energy which is stored in a fossil fuel and turns it into kinetic
energy when the car moves. What type of kinetic energy is being used that has the
car moving?
5) When a runner eats a lot of pasta and then runs a 5K race, what energy is
converted into mechanical energy?
6) If a lake is at 0°C, what is the temperature in Kelvin?
7) When a car tire slides across the road, _______________ energy is lost due to
friction.
8) What does absolute zero mean?
9) What SI unit is energy measured in?
10) At what temperature does water boil?
11) At what temperature does ice melt?
12) At what temperature does water freeze?
13) The process of a liquid turning into a gas is:
14) The process of a gas turning into a liquid is:
15) The process of a solid turning into a liquid is:
Use the graphs below to answer questions #16:
16) Which of the following is the correct graph for the changes of state of H2O from
solid to liquid to gas?
Use the graph below to answer questions #17-20:
17) At what temperature is point A at?
18) Between which two points is melting occurring?
19) How much time does it take for vaporization to occur?
20) Between points B and C what is occurring?
21) Give three examples of physical changes:
22) Give three examples of chemical changes:
23) What is the difference between and extensive and intensive property?
24) What type of force makes a solid stay together and a gas spread apart?
25) Energy is the ability to do _____________.
26) The equation for Work is:
27) Which of the following is NOT a form of potential energy?
a) Chemical
b) Nuclear
c) Gravitational
d) Mechanical
28) Temperature is the measuring the ___________ of matter.
29) One calorie equals how many Joules?
30) 100 calories = ____________ Joules
31) 100 Joules = ___________ calories
32) One Food Calorie equals how many calories?
33) 100 calories = ________ Food Calorie
34) 100 Food Calories = _________ calorie
Use the following table for #35-37:
35) Which of the following substances listed would heat faster?
a) water
b) aluminum
c) iron
d) mercury
36) Which of the following is not a unit used in specific heat?
a) Joules
b) grams
c) Kelvin
d) Celsius
37) Why does a puddle of water feel cooler than the hood of a car on a hot sunny day?
Refer to the specific heat equation for questions #38-43:
38) What does q stand for?
39) What does ΔT stand for?
40) What does m stand for?
41) What does Cp stand for?
41) What is the specific heat of water?
42) How much heat energy is absorbed if 200.0g of water increases from 10°C to
20°C?
43) What is the specific heat of a substance if the heat energy absorbed is 1,000 J and
the temperature increases from 10°C to 40°C. The mass of the substance is 50.0g.
44) How many Calories equals one pound? How many Calories equals one kJ? How
many Calories equals 1,000 calories?
45) A person consumes 2500 Calories of food for one day. He burns 2000 Calories
just by doing daily activities. If he works out and burns 800 Calories how many
pounds will he lose for the day?
Make sure you go over the Separation Lab, Heating Curve Lab and Cheetos Lab!!