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Questions and Answers
What type of energy is associated with an object due to its motion?
What type of energy is associated with an object due to its motion?
- Nuclear energy
- Kinetic energy (correct)
- Chemical energy
- Potential energy
If a body falls freely under gravity, ignoring air resistance, what is its acceleration?
If a body falls freely under gravity, ignoring air resistance, what is its acceleration?
- 5 m/s²
- 0 m/s²
- 9.81 m/s² (correct)
- 1.62 m/s²
What type of collision occurs when two objects collide and stick together?
What type of collision occurs when two objects collide and stick together?
- Elastic
- Centripetal
- Frictionless
- Inelastic (correct)
In which thermodynamic process does a gas expand without any heat entering or leaving the system?
In which thermodynamic process does a gas expand without any heat entering or leaving the system?
What term describes the amount of energy required to raise the temperature of 1 kg of a substance by 1°C?
What term describes the amount of energy required to raise the temperature of 1 kg of a substance by 1°C?
Which color of light has the shortest wavelength in the visible spectrum?
Which color of light has the shortest wavelength in the visible spectrum?
What is the phenomenon of light bending as it passes from one medium to another called?
What is the phenomenon of light bending as it passes from one medium to another called?
The amplitude of a wave is related to its...
The amplitude of a wave is related to its...
What is the resulting acceleration of an object with a mass of 5 kg when a force of 20 N is applied?
What is the resulting acceleration of an object with a mass of 5 kg when a force of 20 N is applied?
Which quantity among the following is considered a scalar?
Which quantity among the following is considered a scalar?
What is the momentum of a 10 kg object moving at a velocity of 5 m/s?
What is the momentum of a 10 kg object moving at a velocity of 5 m/s?
Which one of these options is a unit of specific heat capacity?
Which one of these options is a unit of specific heat capacity?
During an isobaric process, which of the following remains constant?
During an isobaric process, which of the following remains constant?
What happens to the speed of light when it enters a medium with a higher refractive index?
What happens to the speed of light when it enters a medium with a higher refractive index?
When two waves meet and form a larger wave, this phenomenon is known as what?
When two waves meet and form a larger wave, this phenomenon is known as what?
In an electrical circuit, which component is responsible for resisting the flow of current?
In an electrical circuit, which component is responsible for resisting the flow of current?
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Study Notes
Mechanics
- Kinetic energy is associated with motion.
- Acceleration due to gravity is 9.81 m/s².
- An inelastic collision occurs when two objects collide and stick together.
Thermodynamics
- Adiabatic process is when a gas expands without heat entering or leaving the system.
- Specific heat capacity is the amount of energy required to raise the temperature of 1 kg of a substance by 1°C.
- Vaporization is the phase change from a liquid to a gas at constant temperature and pressure.
Optics
- Violet light has the shortest wavelength in the visible spectrum.
- Refraction is the phenomenon of light bending as it passes from one medium to another.
- Convex lens has a positive focal length.
Wave Theory
- Amplitude of a wave is related to its energy.
- The speed of a wave is calculated by multiplying the frequency by the wavelength.
- Doppler effect causes frequency to increase when the sound source moves toward an observer.
Electricity
- A resistor in an electrical circuit resists the flow of current.
- If the voltage across a circuit is doubled, the current doubles assuming resistance is constant.
- Electrical resistance is inversely proportional to the cross-sectional area of the conductor.
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