EST Physics
Egyptian scholastic test (EST) two Physics real tests questions with explanation for free. EST Physics test is prepared by Mrs. Hadil Fayzi.
EST Physics Questions:
Question 1
Answer C
Team A pulls on the rope, the rope pulls right back on Team A with an equal force. For every action, there is an equal and opposite reaction.
EST Physics question 2
Answer D
EST Physics QU3
Answer E
Displacement is a vector quantity that measures the shortest straight-line distance between the initial and final positions of an object. Both objects start at point A and end at point B, so their displacements are the same.
EST-Physics QU 4
Answer B
When light strikes a medium with a lower density at an angle greater than the critical angle, the phenomenon that occurs is total internal reflection. This means that the light does not pass into the second medium but is instead entirely back into the original medium.
EST Physics Question 5
Answer C
This statement is NOT true. When the source is moving away from the observer, the waves are stretched, leading to a lower frequency (lower pitch) and a longer wavelength.
EST Physics Question 6
Answer A
EST Physics question 7
Answer c
EST Physics Question 8
Answer B
P , T Are directly proportional
EST physics question Question 9
Answer D
EST Physics question 10
Answer B
EST physics 11
Answer A
EST Physics question 12
Answer D
Rutherford’s famous gold foil experiment in 1909 led to the conclusion that an atom’s positive charge and most of its mass are concentrated in a small central nucleus, rather than being spread out evenly throughout the atom. This discovery was a significant development in atomic theory, leading to the nuclear model of the atom.
EST Physics question 13
Answer D
Given this:
- The number of nucleons (total protons and neutrons) is 226.
- The number of protons is 88.
- The number of neutrons is 226−88=138226 – 88 = 138226−88=138.
EST Physics question 14
Answer A
approximately equal to each other
EST Physics question 15
Answer : B
p=mv p=5kg×5m/s=25kg⋅m/s
EST Physics question 16
Answer D
Standing waves are characterized by nodes, where there is no movement, and antinodes, where the movement is maximum. This occurs due to the constructive and destructive interference of the two waves.
EST Physics question 17
Answer C
Entropy quantifies the degree of randomness or disorder within a system. Higher entropy indicates greater disorder and a higher number of possible microstates for the system.
EST Physics question 18
Answer D
An apple appears red because it reflects the red wavelengths of light and absorbs the other colors.
EST physics question 19
Answer E
EST physics question 20
Answer C
Speed has a magnitude only without direction
EST Physics question 21
Answer D
- E is the energy stored in the capacitor (in joules, J),
- C is the capacitance of the capacitor (in farads, F),
- V is the voltage across the capacitor (in volts, V).
This formula expresses the potential energy stored in the electric field of the capacitor.
EST Physics question 22
Answer E
EST Physics question 23
Answer E
EST Physics question 24
Answer B
This is because the book exerts a downward force on the table due to gravity (its weight), and the table exerts an equal and opposite upward force on the book (the normal force) in accordance with Newton’s third law of motion.
EST physics question 25
Answer E
1250V/m
EST physics question 26
Answer B
EST physics question 27
Answer D
EST Physics question 28
Answer E
Q= 40kw
EST Physics question 29
Answer E
EST Physics question 30
Answer A
EST physics question 31
Answer B
EST physics question 32
Answer :C
According to Einstein’s special theory of relativity, specifically from the postulates:
- The laws of physics are the same in all inertial frames of reference.
- The speed of light in a vacuum is constant and independent of the motion of the light source or observer.
From these postulates, the quantity that cannot change is:
C. Speed of light
EST physics question 33
Answer D
EST physics question 34
Answer B
EST physics question 35
Answer B
EST physics question 35
Answer C
EST Physics question 37
Answer C
EST physics question 38 – 40
Answer C
Answer D
Answer E
EST physics question 41
Answer B
EST physics question 42
Answer :A
M= 0-4/2-0 = -2
EST physics question 43
Answer E
Nearest answer 0.7
EST physics question 44
Answer C
The choices must be in KJÂ in this case the answer is C
EST physics question 45
Answer C
2+4 = 6 series and its in parallel with 6 to give 3 then 3 in series with 3 and 3 total will be 9
EST physics question 46
Answer A
From 0 to 2 uniform acceleration from 2 to 4 second uniform velocity and zero acceleration, from 4 to 5 negative acceleration
EST physics question 47
Answer B
EST physics question 48
Answer E
EST physics questions 49-50
Answer D
-O.8 –(-13.6)= 12.8 ev
Answer A
E=E5-E3 = -0.54-(-1.5)= 0.96 ev E= hf f= o.96ev/h
EST physics question 51
Answer C
EST physics question 52
Answer B
B IS A node as it has zero amplitude
EST Physics question 53
Answer B
EST Physics question 54
Answer B
EST Physics question 55
Answer B
EST Physics question 56
Answer A
EST Physics question 57
Answer D
EST Physics question 58
Answer E
EST Physics question 59
Answer D
EST Physics question 60
Answer B
EST Physics question 61
Answer C
EST Physics question 62
Answer C
so friction force will be half this value = 15N
EST Physics question 63
Answer D
EST Physics 64
Answer A
In alpha decay, a nucleus emits an alpha particle, which is a helium-4 nucleus
24​He, resulting in the reduction of the atomic number by 2 and the mass number by 4.
EST Physics question 65
Answer E
I = V/R = 4 / 2 = 2 A
EST Physics question 66
Answer C
The material that has zero electrical resistance when cooled below a critical temperature is called a superconductor.
Superconductors exhibit perfect conductivity and expel magnetic fields when they are cooled below their critical temperature.
EST Physics question 67
Answer B
EST Physics question 68
Answer D
- Amplitude is the maximum displacement from the rest position, which is shown by the height of the peaks
- Wavelength is the distance between two consecutive peaks (points A and B).
EST Physics question 69 – 71
Answer A
Answer B
Answer D
Answer C
EST Physics question 73-74
Answer A
W=FX d = 60×30 = 1800j
Answer A
P= w/t = 1800/10 = 180 W
Answer A
Calculate the PE at max height it equals the total mechanical energy
PE=mgh= 50x10x2=1000j
Difference between KE and PE will be the energy lost 1000 – 750 = 250 j
Written by Hadil Fayzi
For questions about Est physics +201114433760 Mrs Hadil
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