Please read each question carefully and select the best answer where applicable. Good luck!
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What is Physics?
- A) The study of historical events
- B) The study of matter, energy, and the forces that interact with them
- C) The study of living organisms
- D) The study of languages
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Which branch of physics deals with the motion of objects?
- A) Thermodynamics
- B) Mechanics
- C) Electromagnetism
- D) Optics
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What is the SI unit of mass?
- A) Kilogram
- B) Pound
- C) Gram
- D) Liter
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Describe the difference between speed and velocity.
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Which of the following is a scalar quantity?
- A) Velocity
- B) Acceleration
- C) Speed
- D) Force
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What is Newton’s First Law of Motion?
- A) Force equals mass times acceleration
- B) An object at rest stays at rest unless acted upon by a force
- C) For every action, there is an equal and opposite reaction
- D) Energy cannot be created or destroyed
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What does the term "inertia" refer to?
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Which of the following is a vector quantity?
- A) Temperature
- B) Distance
- C) Displacement
- D) Time
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If the net force acting on an object is zero, what will happen to the object?
- A) It will accelerate
- B) It will remain at rest or move at a constant velocity
- C) Its speed will increase
- D) It will change direction
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What is the formula for calculating speed?
- A) Distance × Time
- B) Distance / Time
- C) Time / Distance
- D) Force / Mass
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Define work in terms of physics.
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What is the unit of force in the International System of Units (SI)?
- A) Joule
- B) Newton
- C) Watt
- D) Pascal
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Which of the following machines is based on the principle of leverage?
- A) Wheelbarrow
- B) Pulley
- C) Inclined plane
- D) Lever
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What is the acceleration due to gravity on Earth's surface?
- A) 9.8 m/s²
- B) 9.8 km/h
- C) 10 m/s²
- D) 8.9 m/s²
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What is the principle of conservation of energy?
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Which part of the electromagnetic spectrum can humans see?
- A) Infrared
- B) Ultraviolet
- C) Visible light
- D) Radio waves
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What is the law of universal gravitation?
- A) All objects in motion stay in motion
- B) The gravitational attraction is directly proportional to the masses and inversely proportional to the distance between them
- C) Energy is conserved in an isolated system
- D) Force is equal to mass times reduction
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What is the energy stored in an object due to its position called?
- A) Kinetic Energy
- B) Thermal Energy
- C) Potential Energy
- D) Chemical Energy
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What role does friction play in motion?
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Which of the following best describes a wave?
- A) A disturbance that travels through a medium
- B) A momentary change in temperature
- C) A form of energy that is stationary
- D) A solid object in motion
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What is the relationship between amplitude and energy in a wave?
- A) Directly related
- B) Inversely related
- C) No relation
- D) Amplitude decreases energy
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Which of the following is not a form of energy?
- A) Kinetic Energy
- B) Potential Energy
- C) Heat Energy
- D) Mass
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Explain the concept of momentum in physics.
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What is the equation for calculating gravitational potential energy?
- A) mgh (mass × gravity × height)
- B) ½ mv² (half mass × velocity squared)
- C) m/g (mass divided by gravity)
- D) F = ma (force equals mass times acceleration)
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Which phenomenon is described by the term 'refraction'?
- A) Bending of light as it passes from one medium to another
- B) Reflection of light off a surface
- C) Absorption of light energy
- D) The scattering of light
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What is Hooke's Law?
- A) A law that states all motions are relative
- B) A law that describes the relationship between force and the deformation of an elastic material
- C) A law that defines gravitational forces
- D) A law about the conservation of mass
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Which of the following is true about thermal energy?
- A) It only exists in gases
- B) It is the energy in an object due to the motion of its particles
- C) It cannot be transferred between objects
- D) It is a form of mechanical energy
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What is the difference between conductors and insulators?
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Which of the following units is used to measure electrical resistance?
- A) Ampere
- B) Ohm
- C) Volt
- D) Joule
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Why is understanding physics important in everyday life?