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1. What happens to the chemical energy in a candle when you light it? It becomes
C. electrical energy
D. both a and b
A, light energy
B. heat energy
2. What form of energy is produced by a flashlight?
A. light
C. chemical
B. sound
D. electrical
3. What is the main source of light energy?
C. Earth
A. sun
B. fire
D. moon
4. What form of energy is commonly used in kitchen appliances?
C. sound energy
A. heat energy
D. electrical energy
B. light energy
5. What type of energy travels through empty space?
A. light
C. chemical
B. heat
D. electrical
6. Which of the following does NOT produce light?
A. fire
C. the moon
B. the sun
D. a lighted bulb
7. Which best describes the energy transformation when you switch on an electric bulb?
A. Light is transformed to heat energy.
B. Sound is transformed to light energy.
C. Electrical energy is transformed into light energy and heat energy.
D. Electrical energy is transformed into sound energy and heat energy.
8. What happens to the electrical energy when you toast a bread in a bread toaster? It
becomes
A. heat and light
C. heat and sound
B. light and sound
D. heat and nuclear
9. Ultraviolet rays, x-rays, infrared radiation and radio waves are what form of energy?
C. sound
energy
A. light energy
D. radiant energy
B. heat energy
10. What is produced when electrons are allowed to flow through a conductor?
C. electrical energy
A. heat energy
D. Geothermal energy
B. chemical energy

yung maayus po ​

Sagot :

Mayraflorbautistaidn

Answer:

1.a 2.d 3.a 4.b 5.c 6.c 7.d 8.a 9.d 10.b

Catalina01idn

Answer:

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1. D. Both a and b

  • It becomes light energy nor heat energy.

2. A. Light

  • Light energy is produced by flash lights.

3. A. Sun

  • The major source of energy is the Sun.

4. D. Electrical energy

  • Electrical energy is commonly used in kitchen appliances.

5. A. Light

6. C. Moon

  • Moon doesn't produce it's own light.

7. C. Electrical energy is transformed into light energy and heat energy.

8. A. Heat and light

9. D. Radiant energy

10. C. Electrical energy

Explanation:

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