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Energy Review
Test Description: Review for the unit test
Instructions: Answer all questions to get your test result.
1) Which of the following is true about energy?
A
Energy can only be converted to solar or electrical energy
B
Energy cannot be converted from one form to another
C
Energy is converted from one form to another
D
Only solar or electrical energy can be converted
2) Which statement best describes what happens to water molecules when the temperature of liquid water is increased?
A
The bonds become stronger, and the molecules move farther apart
B
The bonds become weaker, and the molecules move farther apart
C
The bonds become stronger, and the molecules move closer together
D
The bonds become weaker, and the molecules move closer together
3) Which illustrates potential energy?
A
The rockets lifting off
B
A rocket sitting on the launch pad
C
Th engines firing
D
The astronauts waving
4) A basketball is at top of a hill, but not yet moving. What type of energy is it showing?
A
Fossil Fuel
B
Potential
C
Kinetic
D
Solar
5) Which statement about heat transfer is true?
A
Magnetism causes heat transfer
B
Heat transfers from a warmer object to a cooler one
C
Radiation is the method of heat transfer is liquid
D
Electric current transfers from a cooler object to a warmer one
6) Maria sits on a park bench on a cold sunny day. The bench feels warm. What process transfers heat from the bench to Maria's body?
A
Convection
B
Motion
C
Radiation
D
Conduction
7) A group of students walk into a room. They then feel the temperature increasing. Which of the statement best describes why the room feels warmer?
A
The students get distracted and are unaware of the actual temperature
B
As the students move around, their muscles work more
C
As the students move around, their bodies release heat energy into the room
D
The students get used to the temperature of the room over time
8) Most computers have fans to keep the computers from overheating. Which of these best describes why this is necessary?
A
Using a computer in a warm room adds heat to the computer
B
A computer functions better at cold temperatures
C
Tying on a computer converts kinetic energy to heat
D
The operation of the computer converts electrical energy to heat
9) Albert is boiling water on the stove. What type of heat is responsible for boiling the water?
A
Reduction
B
Conduction
C
Convection
D
Radiation
10) Which example best demonstrates the process of conduction?
A
Sunlight brightens a dark room
B
Warmed air rises above a lit candle
C
A piece of paper is torn in half
D
A metal spoon gets warm when used to stir hot soup
*select an answer for all questions
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