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3. What form of energy is used for destructive purposes? *
1 point
A. nuclear energy
B. sound energy
C. solar energy
D. electrical energy

This is a required question
4. What form of energy is used by farmers to dry their crops without a cost? *
1 point
A. sound energy
B. solar enery
C. chemical energy
D. electrical energy

This is a required question
5. Using the stethoscope and ultrasound machines, what form of energy is used to detect abnormalities of organs and fetus inside the body? *
1 point
A. sound energy
B. electrical energy
C. solar energy
D. mechanical energy
6. Which energy may be static or current? *
1 point
A. heat energy
B. solar energy
electrical energy
D. sound energy
7. What energy enables a body to do work? *
1 point
A. solar energy
B. electrical energy
C. sound energy
D. mechanical energy
8. What energy flows from hotter to a colder body due temperature difference between them? *
1 point
A. heat energy
B. solar energy
C. electrical energy
D. mechanical energy
9. What energy is produced by the vibration of matter? *
1 point
A. heat energy
B. solar energy
C. electrical energy
D. sound energy
10. What energy can be in the form of light, radio waves and ultraviolet radiation? *
1 point
A. solar energy
B. electrical energy
C. sound energy
D. mechanical energy

This is a required question
11. What do you call a transfer of heat from a warm body to a cold body? *
1 point
A. radiation
B. conduction
C. convection
12. What do you call a transfer of heat from space? *
1 point
A. radiation
B. conduction
C. convection
13. What do you call the transfer of heat from warm air to cold air? *
1 point
A. radiation
B. conduction
C. convection
14. Light and heat energy from the Sun are forms of___ *
1 point
A. chemical energy
B. radiant energy
C. mechanical energy
15. When a spoon is left in a bowl of hot soup, the spoon becomes hot. How does heat travel in the spoon? *
1 point
A. convection
B. radiation
C. conduction ​