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Kerja&Tenaga/work&Energy Form3 Cikgu Sakinah

Authored by Cikgu Sakinah Othman

Science

3rd - 9th Grade

Used 240+ times

Kerja&Tenaga/work&Energy Form3 Cikgu Sakinah
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13 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

A climber of 65 kg climbs up a hill of 60 m high in 5 minutes. The output power of the climber is

Seorang pemanjat 65 kg memanjat bukit yang tingginya 60 m dalam masa 5 minit. Kuasa output bagi pemanjat tersebut adalah

A 13.0 W

B 130 W

C 780 W

D 7 800 W

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

A car of 5 000 kg traveling with uniform acceleration 2 m s–2. What is the work done of the car after traveled 1 km on a straight road?

Sebuah kereta 5 000 kg bergerak dengan pecutan seragam, 2 m s–2. Berapakah kerja yang dilakukan pada kereta selepas melalui jarak 1 km di atas jalan yang lurus?

A 1.0 × 104 J

B 1.0 × 107 J

C 2.5 × 103 J

D 2.5 × 106 J

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

The diagram shows a motor lifting a load of mass 8.0 kg. The motor takes 4 s to lift the load to a height of 0.5 m.

Rajah menunujukkan sebuah motor mengangkat beban 8.0 kg. Motor itu mengambil masa 4.0 s untuk sampai pada suatu ketinggian 0.5 m.


What is the power of the motor?

Berapakah kuasa motor itu?

A 4 W

B 10 W

C 16 W

D 40 W

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

Diagram shows a student with mass 70 kg climbing stairs at a height of 4 m in 40 s.

Rajah menunjukkan seorang murid berjisim 70 kg menaiki tangga setinggi 4 m dalam masa 40 s.

How much power is generated by the student?

Berapakah kuasa yang dijanakan oleh murid itu?

A 28 W

B 35 W

C 70 W

D 700 W

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

Diagram shows ball bearing P being released on a smooth plane.

Rajah menunjukkan alas bebola P dilepaskan atas satu landasan licin.

What is its velocity at Q?

Berapakah halajunya di Q

A 2.4 m s-1

B 4.0 m s-1

C 7.8 m s-1

D 16.0 m s-1

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which situation shows no work being done?

Situasi manakah yang menunjukkan tiada kerja dilakukan?

Media Image
Media Image
Media Image
Media Image

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Work done is

Kerja adalah

The rate of work done in one unit of time

Kadar melakukan kerja yang dilakukan dalam satu masa

The product of force and displacement in the direction of the applied force

Hasil darab daya dan sesaran dalam arah daya

The ability to do work

Kebolehan melakukan kerja

when you grow up and go to work to earn money

apabila kamu bekerja untuk mendapatkan gaji

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