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PHYSICS KSSM F5: CHAPTER 3.4

Authored by UMAIR MOHAMAD

Physics

11th - 12th Grade

Used 10+ times

PHYSICS KSSM F5: CHAPTER 3.4
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

There is a circuit that is supplied with a 4.5 V battery to light up a lamp. If the current is 0.8 A, what is the amount of electrical energy used to light up the lamp for 45 seconds?

Terdapat suatu litar yang dibekalkan dengan bateri sebanyak 4.5 V untuk menyalakan sebuah lampu. Sekiranya arus 0.8 A mengalir selama 45 saat, berapakah jumlah tenaga elektrik yang digunakan untuk menyalakan lampu itu?

253 J

162 J

253 W

162 W

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A fluorescent lamp is labelled 210 V, 36 W. Calculate the lamp’s resistance.

Sebatang lampu pendarfluor dilabelkan dengan 190 V, 36 W. Hitungkan rintangan lampu.

6.17 Ω

5.83 Ω

400 Ω

1,225 Ω

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An immersion heater is labelled 240 V, 750 W. Calculate the current flowing through the lamp under normal conditions.

Sebuah pemanas rendam dilabelkan dengan 240 V, 750 W. Hitungkan arus yang mengalir melalui lampu dalam keadaan normal.

3.13 A

0.32 A

3.13 Ω

0.32 Ω

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A refrigerator is labelled 110 V, 900 W. Calculate the electrical energy that is supplied for two hours in kJ.

Sebuah peti sejuk dilabelkan dengan 110 V, 900 W. Hitungkan tenaga elektrik yang dibekalkan dalam masa dua jam dalam kJ.

10.8 kJ

1,800 J

6,480 kJ

792 kJ

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The output power of a battery is 80 W. Determine the electrical energy that is supplied by the battery in two hours and 30 minutes

Kuasa output bagi suatu bateri ialah 80 W. Tentukan tenaga elektrik yang dibekalkan oleh bateri dalam masa 2 jam 30 minit

12 kJ

720 kJ

0.53 kJ

0.5 kJ

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A 200 V, 75 W lamp is used for 8 hours in one day. Calculate the total energy consumption if the lamp is used for 29 days.

Sebuah 18 W lampu digunakan selama 8 jam dalam satu hari. Hitungkan jumlah penggunaan tenaga jika lampu digunakan selama 29 hari.

17.4 unit

46.4 unit

1,044 unit

2,784 unit

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An air conditioner with a label of 240 V, 3500 W is used for 5 hours in a day. If the air conditioner is used the same amount of time each day, calculate the total energy consumption if it is used for 15 days.

Sebuah penghawa dingin yang berlabel 240 V, 3500 W digunakan selama 5 jam dalam satu hari. Jika penghawa dingin itu digunakan sepanjang itu setiap hari, hitungkan jumlah penggunaan tenaga jika ia digunakan selama 15 hari.

18 unit

1,080 unit

262.5 unit

15,750

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