____36. Which of the following is an effect of heat when added to an object?

A. Change in the state of matter because of the increase in temperature

B. Gain of kinetic energy causing the molecules to move faster

C. Gain of kinetic energy causing the molecules to move slowly

D. Sudden increase in temperature causing an object to become hot

____37. How will you describe the temperature of the boiling water poured out into 2 glasses in a different amount?



A. the same

B. lower in glass A

C. lower in glass B

D. different











____38. What direction is the natural flow of heat?

A. cold to hot B. hot to cold C. in any direction D. warm to hot

____39. Which of the following measures temperature?

A. Anemometer B. Barometer C. Speedometer D. Thermometer

____40. Which of these principles is the reason why electrical wires are not hung too tightly?

A. gravity B. specific capacity C. thermal expansion D. law of energy conservation

____41. How do solid, liquid, and gas respond when heated?

A. contracts B. expands C. no reaction D. sinks

____42. Adding more battery means adding more voltage. What is its effect to brightness of the bulb?

A. bulb gets dimmer C. bulb will not lit up

B. bulb gets brighter D. nothing happens in the bulb

____43. How will you describe the current in the circuit as the voltage increases?

A. current cannot pass through C. current increases

B. current decreases D. current remains the same

____44. What is/are the advantage/s of parallel connections at home?

I - Appliances can be turned on/off independently

II - Safer than the series connection

III - Saves electricity

A. I only B. I and II only C. I and III only D. I, II and III

____45. Why does the bulb light up when the switch is closed in a simple circuit?

A. Closing the switch completes the circuit C. The switch produces electricity

B. Closing the switch breaks the circuit D. The load produces electricity

____46. What is being paid by the consumers in their monthly electric bill?

A. current B. electric power C. electric energy D. voltage

____47. What safety device protects an electrical circuit from damage caused by excess current from an overload or short circuit connection?

A. circuit breaker B. battery C. double insulation D. fuse

____48. Which of the following statement about voltage and current is correct?

A. As voltage increases, current also increases. C. as current decreases, nothing happens to voltage

B. As voltage increases, current decreases. D. as current increases , nothing happens to voltage

____49. Which of the following statement about resistance and current is correct?

A. As resistance increases, current also increases. B. As resistance decreases, current also decreases.

B. As resistance increases, current decreases. D. As resistance increases, nothing happens to current.

____50. If there are 220V and 10A running through an electrical circuit, what is the resistance of the circuit?

A. 11Ω B. 22 Ω C. 33 Ω D. 44 Ω


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