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Key Concepts & Terminologies

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Course
Physics

Institution
9th Grade

This document provides an overview of key terms and concepts related to physics. It includes explanations of fundamental principles such as Newton's laws of motion, as well as definitions of important terminology related to force, motion, energy, waves, electromagnetism, optics, and other areas of ...

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Uploaded on April 11, 2023
Number of pages 2
Written in 2022/2023
Type Interview
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Institution Secondary school
Education 9th Grade
Course Physics
School year 1

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Common Terms of Physics

1. Force: A force is a push or pull that can cause a change in motion or shape of an object.
2. Motion: Motion refers to the change in position of an object over time.
3. Velocity: Velocity is the rate at which an object's position changes in a specific direction.
4. Acceleration: Acceleration is the rate at which an object's velocity changes over time.
5. Energy: Energy is the ability to do work or produce a change.
6. Work: Work is the force applied to an object multiplied by the distance it moves in the
direction of that force.
7. Power: Power is the rate at which work is done.
8. Friction: Friction is the resistance to motion that occurs between two surfaces in contact.
9. Gravity: Gravity is the force of attraction between two objects with mass.
10. Inertia: Inertia is the tendency of an object to resist a change in motion.
11. Potential energy: Potential energy is the energy an object possesses due to its position
or condition.
12. Kinetic energy: Kinetic energy is the energy an object possesses due to its motion.
13. Law of Conservation of Energy: The law of conservation of energy states that energy
cannot be created or destroyed, only transferred from one form to another.
14. Momentum: Momentum is the product of an object's mass and velocity, and it is a
measure of how much force is needed to change its motion.
15. Waves: Waves are disturbances that travel through a medium or through space, carrying
energy from one place to another.
16. Newton's laws of motion: These are three fundamental laws that describe the behavior
of objects in motion. The first law states that an object will remain at rest or in uniform
motion in a straight line unless acted upon by an external force. The second law states that
the acceleration of an object is directly proportional to the force applied to it and inversely
proportional to its mass. The third law states that for every action, there is an equal and
opposite reaction.
17. Torque: Torque is a measure of the force that causes an object to rotate around an axis or
pivot point.
18. Pressure: Pressure is the force per unit area exerted on a surface.
19. Heat: Heat is the transfer of thermal energy from one object to another due to a difference
in temperature.
20. Temperature: Temperature is a measure of the average kinetic energy of the particles in
a substance.
21. Thermodynamics: Thermodynamics is the branch of physics that deals with the study of
heat and its relationship with other forms of energy.
22. Electromagnetism: Electromagnetism is the study of the interaction between electrically
charged particles and the electromagnetic field.
23. Electric current: Electric current is the flow of electric charge through a conductor.

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