Worksheetsاختبار فيزياء
Total questions: 58
Worksheet time: 37mins
A physics teacher in one of the schools has an experiment between force F and extension X. Group A students conduct the experiment in a laboratory, while Group B students use a virtual experiment. Which group?
Group A
Group B
Both groups are equal
Cannot be measured due to the difference in method
In the sound lesson, the physics teacher asked the following question: Why do we hear sound more clearly in the late hours of the night?
Linking and analysis
Problem solving
Creative thinking
Critical thinking
A teacher is reading a statement about electricity. What should be corrected?
Electricity flows from low voltage to high voltage.
There is a difference between heat quantity and temperature.
Light can have wave or particle behavior.
If a recording is made, it will be reversed.
What are the types of laboratories that a physics teacher can use?
Simulation laboratory
Computerized laboratories
Virtual laboratories
Experimental laboratories
In the STS approach to learning sciences, what is the relationship between technology and society?
Engineering and technology
Technology and society
Mathematics and technology
Mathematics and engineering
The scientific hypothesis that can be tested is:
Theory
Hypothesis
Scientific law
Model
If a chemical substance spills on your hand, the first step you should take is:
Wash the affected area with large amounts of water.
Rush to a medical center for treatment.
Stay at the scene until the ambulance arrives.
Neutralize the chemical substance by pouring another chemical on it.
What are the properties of materials in chemistry?
Flammable
Toxic
Explosive
When students learn how to solder electronic components on a circuit board in a practical activity, what should they wear?
Leather gloves
Rubber shoes
Safety glasses
Anti-static device
Which of the following statements related to scientific law is incorrect?
The law is based on observations made by researchers.
It is proven through repeated experiments.
A theory becomes a law after being proven.
It is based on observations.
What is the distance and time graph?
Vector A has a magnitude of 10 units and vector B has a magnitude of 5 units with an angle of 60 degrees between them. The dot product (A.B) of the two vectors equals:
43.3
25
15
16.6
What is the unit of measure for a vector?
Magnitude
Density
Momentum
Work
An object moves at a speed of 30 m/s. What is its speed in km/h?
22
19
10
108
If the acceleration is given by a(t)=6t and the initial speed is 4 m/s, what is the speed of the particle in m/s at t=3s?
36
58
54
If a(t)=6t and the initial velocity is 4m/s, what is the velocity of the particle in m/s at t=3s?
36
58
54
97
In projectile motion, the velocity of the projectile is ..............
Constant in x and variable in y
Constant in y and variable in x
Constant in x and y
Variable in x and y
In the study of the effect of temperature on the speed of sound, the teacher determined the variables of the study, what are they?
Temperature
Speed of sound
Both
Cannot determine
What is the component responsible for the acceleration of the body shown in the figure?
mg cosθ
mg sinθ
mg tanθ
mg cotθ
If M > m, what is a=?
(M−m)/(M+m)
g a=(M−m)/(M+m)
g a=(M+m)/(M−m)
0
A stationary person observes a car moving with a pendulum swinging at an angle of 10 degrees. What is the acceleration of the car in m/s²?
0.098
0.017
1.7
9.8
A bullet is fired at a speed of 100m/s towards a box with a mass of 5kg. If it moved inside the box 2m, what is the average force needed to stop the bullet from the box?
12500N
8000N
8GN
12MN
A bullet with a mass of 0.02Kg is fired at a speed of 404m/s towards a stationary wooden board with a mass of 2kg. What is their final speed in m/s?
2
4
6
8
What is the torque generated on a screw if the applied force is 100N and the distance from the axis of rotation to the point of force application is 2m, and the angle of inclination of the force is 30 degrees?
50N.m
100N.m
150N.m
200N.m
From the shown figure, Ahmed is rotating an object counterclockwise. When the string breaks at point P, the object moves in the path ................?
A
B
C
D
A fluid flows in a pipe horizontally, which of the points shown in the figure has the highest fluid speed?
1
2
5
3
If the flow rate of a liquid in a horizontal pipe is 4m/s, and if the diameter is reduced to half, what is the fluid speed in m/s?
2
4
8
16
If a wooden body is submerged 1/3 of its volume in water with a density of 1000kg/m³ and submerged 1/2 of its volume in oil, what is the density of the oil in kg/m³?
750
333
666
1500
If a spring extends by 0.5m under the influence of a force of 60N, what is the spring constant in N/m?
120
30
90
240
A body with a volume of 1.3x10³m³ is placed in a container filled with water. If the density of the body is 3000kg/m³ and the density of water is 1000kg/m³, what is the resultant force in Newton?
(a)
A body with a volume of 30 m3 is placed in a container filled with water. If the density of the body is 3000 kg/m3 and the density of water is 1000 kg/m3, what is the resultant force in Newtons?
26
260
2600
26000
If a rod of iron is cooled from a temperature of 100C to 10C, then:
It decreases in size and increases in density.
It increases in size and decreases in density.
It increases in size and increases in density.
It decreases in size and decreases in density.
Two charges q1 and q2 (where q1 = 5q2) are separated by a distance r. The force that each charge exerts on the other is:
F2 = F1
-F2 = F1
F2 = 5F1
F2 = -5F1
An electric charge of 9-2x10 C is placed in an electric field of 2000 N/C. What is the force acting on the charge in Newtons?
-6-2x10
-4-2x10
-6-4x10
-4-4x10
A capacitor with a positive charge R and a voltage V is connected. Which of the following is correct regarding the relationship between the electric potential V and the distance from the center r, and the electric field E and the distance from the center r?
A
B
C
D
What is the voltage (potential) at a resistance of 2Ω?
4
8
12
9
In the figure below, for which two points is the electric potential difference equal to zero?
If the two capacitors C1 and C2 have the same type and area, and Fμ=5 for C1 and Fμ=20 for C2, and the distance between the plates of the second capacitor is d, then the distance between the plates of the first capacitor is .........?
4d
2d
0.5d
0.25d
A wire has a resistance of 10Ω when a current of 5A passes through it. If the current increases to 10A, what does this mean for the resistance in ohms?
10
20
5
25
What is the equivalent resistance of the circuit shown?
66.67Ω
300Ω
100Ω
33.33Ω
What is the equivalent capacitance of these capacitors in μF?
5
15
30
45
The electric flux through a spherical surface of radius r:
q
2q
r
2r
If a wire carrying a current of 25A creates a magnetic field of 1 Tesla around it, what is the length of the wire in meters if the force is 50N?
1
2
3
4
The capacitor works to ............
Store magnetic field
Store electrical energy
Store resistance
Generate voltage
The important discovery made independently by physicists Michael Faraday and Henry:
Electromagnetic induction
Current electricity
Static electricity
Electric capacitor
What is the formula for the force acting on a charge in a magnetic field?
What is the equivalent unit: the electric current?
Kg/C.S
kg.C/s
N.C/s
N/C.s
The magnetic field in a wire carrying current is shaped like:
Straight lines
Concentric circles
Intersecting lines
Intersecting circles
Temperature is proportional to ........
Thermal energy of the material.
Vibrational kinetic energy of the material.
Average translational kinetic energy of the material.
Rotational kinetic energy of the material.
A balloon filled with gas has a volume of 2L at 300K. What is its volume in liters at 150K?
1
2
3
4
When the entropy in a system increases, the energy of the system:
Decreases
Increases
Reaches equilibrium
Moves towards extinction.
If the time period for a wave to complete a full cycle is 2s, what is the frequency in Hz?
1
1/2
1/4
2
An ambulance car is moving away from a person, what happens to the wavelength of the sound wave for the person?
Increases
Decreases
Constant
Decreases then increases.
Which of the following transitions of the electron will emit light?
From level 3 to level 1
From level 2 to level 1
From level 1 to level 3
From level 1 to level 2.
Two photons with the same frequency, their total energy equals ............
2hf
hf
1/2hf
1/4hf
If the half-life of a substance is 1620 years, and the ratio of decayed nuclei to original nuclei is 1/8, what is the total time?
1620 years
1620 days
4860 years
4860 days
The resulting nucleus in this transformation is.......+ He
Po
Po
Po
Po
If a particle moves at a speed of 0.1c, what is the speed observed by an observer?
C
4c
3c
2c
