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Question 1:

Which of the following is an example of electrical energy?

A) A burning candle
B) Sunlight
C) A flowing river
D) A working light bulb

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Explanation: The correct answer is D) A working light bulb. Electrical energy is the energy associated with the movement of electric charges. In this case, the working light bulb converts electrical energy into light energy and heat energy.

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Question 2:

What is electrical energy?

A) The energy of motion
B) The energy associated with temperature
C) The energy associated with electric charges
D) The energy transferred by electromagnetic waves

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Explanation: The correct answer is C) The energy associated with electric charges. Electrical energy is the energy carried by electric charges, such as electrons. It is associated with the flow of electric current in conductors and can be converted into other forms of energy.

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Question 3:

Which of the following is an example of electrical energy transformation?

A) Charging a smartphone battery
B) Melting of ice
C) Boiling water
D) Reflection of light from a mirror

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Explanation: The correct answer is A) Charging a smartphone battery. Electrical energy transformation refers to the conversion of electrical energy into other forms of energy. In this case, when you charge a smartphone battery, electrical energy is transformed into chemical energy stored in the battery.

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Question 4:

What is the unit used to measure electrical energy?

A) Volts
B) Watts
C) Amperes
D) Joules

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Explanation: The correct answer is D) Joules. Electrical energy is typically measured in joules (J). One joule is the amount of energy transferred when a one-watt electrical device is used for one second.

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Question 5:

Which of the following is an example of electrical energy used in daily life?

A) Wind turning a windmill
B) A battery powering a flashlight
C) A flowing river turning a waterwheel
D) Sunlight heating a room

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Explanation: The correct answer is B) A battery powering a flashlight. Electrical energy is commonly used in various devices and appliances. In this case, the battery in a flashlight provides electrical energy that powers the light bulb and produces light.