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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
Only solar or electrical energy can be converted
B
Energy is converted from one form to another
C
Energy can only be converted to solar or electrical energy
D
Energy cannot be converted from one form to another
2) Which statement best describes what happens to water molecules when the temperature of liquid water is increased?
A
The bonds become weaker, and the molecules move closer together
B
The bonds become stronger, 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 farther apart
3) Which illustrates potential energy?
A
A rocket sitting on the launch pad
B
Th engines firing
C
The astronauts waving
D
The rockets lifting off
4) A basketball is at top of a hill, but not yet moving. What type of energy is it showing?
A
Solar
B
Potential
C
Fossil Fuel
D
Kinetic
5) Which statement about heat transfer is true?
A
Electric current transfers from a cooler object to a warmer one
B
Magnetism causes heat transfer
C
Heat transfers from a warmer object to a cooler one
D
Radiation is the method of heat transfer is liquid
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
Conduction
D
Radiation
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
The students get used to the temperature of the room over time
C
As the students move around, their bodies release heat energy into the room
D
As the students move around, their muscles work more
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
The operation of the computer converts electrical energy to heat
C
Tying on a computer converts kinetic energy to heat
D
A computer functions better at cold temperatures
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
A metal spoon gets warm when used to stir hot soup
C
Warmed air rises above a lit candle
D
A piece of paper is torn in half
*select an answer for all questions
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