“The emission of free electrons from a heated metal surface.” The following is the definition of
“Pemancaran elektron bebas daripada permukaan logam yang dipanaskan.” Berikut adalah definisi bagi
PHYSICS KSSM FORM 5: CHAPTER 5.1
Quiz
•
Physics
•
11th - 12th Grade
•
Medium
UMAIR MOHAMAD
Used 308+ times
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13 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
“The emission of free electrons from a heated metal surface.” The following is the definition of
“Pemancaran elektron bebas daripada permukaan logam yang dipanaskan.” Berikut adalah definisi bagi
Thermionic emission
Pancaran termion
Ionic emission
Pancaran ion
Cathode ray
Sinar katod
Maltese ray
Sinar Maltese
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why must the glass tube be in a vacuum state?
Mengapakah tiub kaca berada dalam keadaan vakum?
To avoid a reaction to happen inside the glass tube
Untuk mengelakkan tindak balas berlaku dalam tiub kaca
To ensure the electrons wouldn’t collide with air molecules
Untuk memastikan elektron tidak berlanggar dengan molekul-molekul udara
To reduce the pressure inside of the glass tube
Untuk mengurangkan tekanan dalam tiub kaca
To ensure the electron emission is controlled
Untuk memastikan pancaran elektron terkawal
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
_______ is a high velocity electron beam.
_______ adalah sesuatu alur elektron yang berkelajuan tinggi.
Ionic emission
Pancaran ion
Thermionic emission
Pancaran termion
Maltese ray
Sinar Maltese
Cathode ray
Sinar katod
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What would happen if the connection to the E.H.T power supply is reversed?
Apakah yang akan berlaku jika sambungan ke bekalan kuasa V.L.T disongsangkan?
The cathode ray’s velocity will be increased
Kelajuan sinar katod akan bertambah
Cathode ray will be polarized
Sinar katod akan dikutubkan
The milliammeter will not show any readings
Miliammeter tidak akan menunjukkan bacaan
The milliammeter’s needle will deflect
Jarum miliammeter akan terpesong
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
What are the traits of a cathode ray?
Apakah ciri-ciri bagi sinar katod?
Travels in a straight line
Bergerak dalam garis lurus
Positively charged
Bercas positif
Negatively charged
Bercas negatif
Has mass
Mempunyai jisim
Possesses momentum and kinetic energy
Mempunyai momentum dan tenaga kinetik
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
There is an electron beam that accelerated from the cathode to the anode in a vacuum. The potential difference across the cathode and the anode is 600 V. What is the electrical potential energy of an electron?
[Mass of an electron, m = 9.11 × 10–31 kg, charge of an electron, e = 1.6 × 10–19 C]
Terdapat suatu alur elektron dari katod yang memecut ke arah anod dalam ruang vakum. Beza keupayaan merentasi katod dengan anod ialah 600 V. Berapakah tenaga keupayaan elektrik bagi satu elektron?
[Jisim elektron, m = 9.11 × 10–31 kg, cas satu elektron, e = 1.6 × 10–19 C]
5.47x1028 J
9.60x1017 J
5.47x10-28 J
9.60x10-17 J
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a cathode ray tube, the potential difference between the accelerating anode and the cathode in a vacuum is 200 kV. What is the kinetic energy of an electron when it reaches the anode?
[Mass of an electron, m = 9.11 × 10–31 kg, charge of an electron, e = 1.6 × 10–19 C]
Dalam sebuah tiub sinar katod, beza keupayaan antara anod pemecut dengan katod dalam ruang vakum ialah 200 kV. Berapakah tenaga kinetik yang diperoleh elektron apabila tiba di anod?
[Jisim elektron, m = 9.11 × 10–31 kg, cas satu elektron, e = 1.6 × 10–19 C]
3.20x10-14 J
1.82x10-25 J
3.20x1014 J
1.82x1025 J
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