📚 مادة الاختبار: Science — Preparatory 1
تدريب عام: Unit 2 : Energy and Its Applications (Science) - Preparatory 1
سؤال من
السؤال 1
If the speed of a moving object is doubled while its mass remains constant, how is its kinetic energy affected?
السؤال 2
When experimenting on how height affects the depth of a marble's crater in sand, which factor should be a controlled variable?
السؤال 3
The generation of electricity from the High Dam exemplifies the transformation of potential energy into electrical energy through an intermediate kinetic energy stage.
السؤال 4
What two factors primarily determine the potential energy of an object above the ground?
السؤال 5
The potential energy of an object primarily depends on which two factors?
السؤال 6
Which variable is measured or observed to see how it responds to changes made in another variable during a scientific experiment?
السؤال 7
What is the fundamental ability to do work?
السؤال 8
For a freely falling object, its mechanical energy is equal to its potential energy at its maximum height.
السؤال 9
Which formula correctly represents the kinetic energy of an object?
السؤال 10
At which position does a freely swinging pendulum have its maximum kinetic energy?
السؤال 11
Speed can only be measured in meters per second (m/s).
السؤال 12
The mechanical energy of an object increases if its potential energy decreases and its kinetic energy increases by the same amount.
السؤال 13
What is potential energy?
السؤال 14
Kinetic energy is estimated by the amount of work done during the motion of an object.
السؤال 15