UJIAN PENILAIAN 1/2015PHYSICS FORM 4

NAME: ..CLASS: ...

Section A: 20 questions. Answer all.1. 1

2. Which of the following values is equal to 500 MW?Antara yang berikut yang manakah sama dengan 500 MW?

A. 5.0 X 108 WB. 5.0 X 106 WC. 5.0 X 10-8 WD. 5.0 X 10-6 W

3. Which of the following physical quantities is not a base quantity?Antara kuantiti fizikal berikut, yang manakah bukan kuantiti asas?

A. Time/MasaB. Velocity/HalajuC. Temperature/SuhuD. Electric current/Arus elektrik4. Which of the following value and prefix is correct? Antara nilai dan imbuhan berikut, yang manakah betul?

Value/NilaiPrefixes/Imbuhan

A0.01mili

B0.10deci

C100centi

D10000kilo

5. In which of the following sets are the prefixes arranged in ascending order?Antara yang berikut, imbuhan manakah disusun mengikut susunan menaik?

A. nano, mega, milli, kiloB. mega, kilo, nano, milliC. nano, milli, kilo, megaD. kilo, milli, mega, nano

6. Vernier caliper and metre rule can be used to measure the thickness of a wire. Which statement is true regarding their sensitivity ? Perbandingan yang manakah betul tentang kepekaan angkup vernier dengan pembaris meter apabila mengukur ketebalan suatu dawai ?

Vernier CaliperAngkup VernierMetre RulePembaris meter

ALow sensitivity Kepekaan rendahLow sensitivity Kepekaan rendah

BLow sensitivity Kepekaan rendahHigh sensitivity Kepekaan tinggi

CHigh sensitivity Kepekaan tinggiLow sensitivity Kepekaan rendah

DHigh sensitivity Kepekaan tinggiHigh sensitivity Kepekaan tinggi

7. Consistency can be defined as Apakah yang dimaksudkan dengan kepersisan ?

A. The ability of an instrument to detect small changes of its physical quantity being measured. Kebolehan suatu alat pengukuran mengesan perubahan kecil kuantiti fizik yang diukurnya B. The ability of an instrument to get a precise reading of its physical quantity being measured. Kebolehan alat pengukuran mengukur sesuatu kuantiti secara konsisten C. The ability of an instrument to get an accurate reading of its physical quantity being measured.Kebolehan alat pengukur mengukur sesuatu kuantiti secara tepat

8. A car travels with a constant velocity of 12 m s-1 for 10 s. what is the acceleration of the car?Sebuah keret bergerak dengan kelajuan seragam 12 m s-1 selama 10 s. Berapakah pecutan kereta tersebut?

A. 0 m s-1B. 1.2 m s-1C. 12.0 m s-1D. 120.0 m s-1

9. Diagram 1 shows a girl standing on the platform of a train station watching a train. The train starts from rest and moves with acceleration of 0.2 m s-2. The girl observes that the train takes 24 s to move past her.Rajah 1 menunjukkan seorang budak perempuan berdiri di atas platform di sebuah stesen keretpi dan sedang memerhatikan sebuah keretapi. Keretapi itu mula bergerak dari keadaan rehat dan bergerak dengan pecutan 0.2 m s-2. Budak perempuan itu mendapati bahawa keretapi itu mengambil masa 24 s untuk bergerak melepasinya.

Diagram 1What is the length of the train?Berapakah panjang keretapi itu?

A. 48.0 mB. 57.6 mC. 115.2 mD. 120.0 m

10. Diagram 2 shows four motion graphs, P, Q, R and S.Rajah 2 menunjukkan empat graf gerakan, P, Q, R dan S.Diagram 2

Which of the graphs are for motion with constant velocity?Graf yang manakah adalah untuk gerakan dengan halaju malar?

A. P and RB. P and SC. Q and RD. Q and S

11. In an experiment to observe the motion of a trolley, strips of 10 ticks were used to form a chart of ticker tapes. Which ticker tape's chart show the motion with increasing in acceleration?Dalam eksperimen mengkaji gerakan troli, keratan jalur-jolur pita sepuluh detik digunakan untuk membentuk carta pita. Carta pita yang manakah menunjukkan gerakan dengan pecutan yang semakin bertambah?

12. The graph 9 shows how the speed of a car changes with time. Graf menunjukkan bagaimana laju sebuah kereta berubah dengan masa.

Which of the following gives the distance travelled in time interval OR? Manakah di antara berikut menghasilkankan jarak yang dilalui dalam sela masa OR?

A. the area OPQRB. the length PQC. the length (QR - PO)D. the ratio QR/PO

13. A heavy lorry has a high inertia. How difficult is it to start the lorry moving and to stop it moving?Sebuah lori yang berat mempunyai inersia yang besar. Berapa sukarkah untuk mula menggerakkan lori dan untuk memberhentikannya.

14. Which measuring tool is the most sensitive? Antara berikut, alat pengukuran manakah yang paling peka?

15. The graph shows the relationship between v and t.Graf menunjukkan hubungan antara v dan t.

The relationship between v and t can be represented by the equationHubungan v dan t diwakili oleh persamaan

A. v = t + 5B. v = t + 1C. v = - t + 5D. v = - t + 116. The following are three readings, P, Q and r obtained by three different measuring instruments.Berikut adalah tiga bacaan P, Q dan R diperolehi dari tiga alat pengukur yang berlainan.

P=1.15 mm

Q=18.9 cm

R=4.21 cm

What measuring instrument was used to measured P, Q and R?Apakah alat pengukuran yang digunakan untuk mengukur P, Q dan R?

PQR

AVernier caliperAngkup vernierMicrometer screw gaugeTolok skru mikrometerMetre rulePembaris meter

BMicrometer screw gaugeTolok skru mikrometerVernier caliperAngkup vernierMetre rulePembaris meter

CMicrometer screw gaugeTolok skru mikrometerMetre rulePembaris meterVernier caliperAngkup vernier

DVernier caliperAngkup vernierMetre rulePembaris meterMetre rulePembaris meter

17. Based on the graph below, the value of gradient is 2.0.Berdasarkan graf di bawah, nilai bai kecerunan ialah 2.0

What is the unit for the gradient?Apakah unit bagi kecerunan tersebut?

A. m-1 s-1B. m s-2C. m s-1D. m s2

18. A car starts from rest and goes down a slope with a constant acceleration of 5 m s-2, After 5 s the car reaches the bottom of the hill. Its speed at the bottom of the hill, in meters per second, is: Sebuah kereta bergerak dari keadaan rehat dan menuruni sebuah bukit dengan pecutan sekata 5 m s-2 dan tiba di bawah bukit selepas 5 s. Laju kereta itu di bawah bukit dalam meter per saat ialah:

A. 1 B. 12.5 C. 25 D. 50 E. 160

19. A bus decreases its velocity from 8 m s-1 to 4 m s-1 in a distance of 12 m. What is the acceleration of the bus, inm s-2?Halaju sebuah bas berkurang dari 8 m s-1 kepada 4 m s-2 dalam jarak 12 m. Apakah nilai pecutan bas tersebut, dalam m s-2?

A. -4B. -2C. 2D. 4

20. A van has travelled 10 m in 2 seconds. If the acceleration was 2 m s-2, its initial velocity would beSebuah van bergerak sejauh 10 m dalam masa 2 saat. Jika pecutannya ialah 2 m s-2, halaju awal van itu ialah

A. 0 m s-1B. 3 m s-1C. 5 m s-1D. 6 m s-1

21. A student starts cycling from rest and reaches a speed of 12 m s-1 in 6 seconds. The distance travelled by him isSeorang pelajar mula mengayuh dari keadaan rehat dan mencapai kelajuan 12 m s-1 dalam masa 6 saat. Jarak yang dilalui oleh pelajar tersebut ialah

A. 18 mB. 36 mC. 54 mD. 72 m

Write your answer for Section A here.

1.11.

2.12.

3.13.

4.14.

5.15.

6.16.

7.17.

8.18.

9.19.

10.20.

SECTION B (20 MARKS)Answer all questions in this section

1.Figure 1 show a ticker tape obtained from a trolley moving on a plane. Each strip of ticker tape contains 11 ticks. The electrical supply to the ticker timer is 50 Hz.

a) Describe the movement of the trolley based on the ticker tape above. (huraikan pergerakan)___________________________________________________________________________________________________________________________________________________________________________ [2 mark]

b)What is the time interval for 11 ticks on the ticker tape? (masa untuk 11 detik)

[1 mark]c)What is the initial velocity of the trolley based on the ticker tape? (halaju awal)

[2 marks]d)What is the final velocity of the trolley based on the ticker tape? (halaju akhir)

[2 marks]e)Calculate the acceleration of the trolley. (pecutan)

[3 marks]

2.Ahmad cycles to school every day. The graph in Figure 2 shows a typical velocity-time graph of Ahmads journey to school.

Figure 2

a)Describe the following parts of Ahmads movement. (huraikan pergerakan)i)A to B____________________________________________________________[1 mark]ii)B to C____________________________________________________________[1 mark]b)For how long was Ahmad travelling at constant deceleration? (nyahpecutan)__________________________________________________________________[2 mark]

c)Calculate the total distance travelled by Ahmad. (jarak yang dilalui)

[3 marks]

d)Find Ahmads average velocity for the whole journey. (halaju purata)

[3 marks]Disediakan oleh,

(SITI HASMAH BT. MOHAMAD)Penyelaras FizikSMK LEPAR HILIR 2015

Disemak oleh,

.(PN. WAN AZLINA WATI BT. WAN MUHAMAD)Ketua Bidang Sains & MatematikSMK LEPAR HILIR 2015