lalascience

• Friction is the force that resists the movement of one surface past another
• High coefficient of friction occurs when a solid object comes in contact with another object
• First law of motion:

  • An object at rest remains at rest, and an object in motion remains in motion at constant speed and in a straight line unless acted upon by an unbalanced force
  • Also called the law of inertia
• Second law of motion:

  • The acceleration of an object depends on the mass of the object and the size of the net force applied
  • Acceleration = force/mass
  • Only unbalanced forces cause an object to accelerate
• Third law of motion:

  • When a force is applied to an object, the object exerts an equal force in the opposite direction
  • Also called the law of action and reaction
• Free fall occurs when gravity pulls an object towards the ground, with gravity being the only force acting on the object
• Centripetal force pulls objects toward the center, while centrifugal force pulls objects away from the center
• Sound energy is produced by vibrating bodies that send out compression waves in all directions
• Heat/Thermal energy is the total kinetic and potential energy of the particles in a substance
• Conduction is the best means of energy transfer within a solid or between objects in thermal contact
• Convection is the transfer of thermal energy by the movement of the particles of a liquid or gas, resulting in a stream of fluid called a convection current
• Radiation is the transfer of thermal energy as electromagnetic waves, similar to light and sound
• Blackbody is an object that radiates heat
• Light/Visible light is a form of electromagnetic radiation visible to the human eye
• Electric current is a flow of electric charge in a material, flowing only when it can travel in a complete path to its starting position
• Thermodynamics is the study of all forms of energy
• Law of conservation of energy states that energy cannot be created or destroyed
• Magnetic force is the force exerted by the Earth's magnetic field
• Buoyant force is the force exerted by the volume of water that keeps an object afloat
• Air resistance is the force that resists the pull of gravity on a falling object
• Net force is the total amount of force applied to an object
• Unbalanced force occurs when two forces from opposite directions cancel each other and follow the direction of the greater force
• Balanced force consists of equal amounts of force with opposite directions that cause an object to stay stationary
• Gravitational constant is 9.8 m/s, representing the pull of Earth's gravity
• Acceleration is the change in speed and direction of a moving object
• Deceleration is the decreasing of the applied force to a moving object
• Lubricant is a liquid substance that decreases friction
• Motion is a change in the position of an object after an outside force is applied to it
• Friction is the force that resists the movement of one surface past another
• High coefficient of friction occurs when a solid object comes in contact with another object
• First law of motion:

  • An object at rest remains at rest, and an object in motion remains in motion at constant speed and in a straight line unless acted upon by an unbalanced force
  • Also known as the law of inertia
• Second law of motion:

  • The acceleration of an object depends on the mass of the object and the size of the net force applied
  • Acceleration = force/mass
  • Only unbalanced forces cause an object to accelerate
• Third law of motion:

  • When a force is applied to an object, the object exerts an equal force in the opposite direction
  • Also known as the law of action and reaction
• Free fall occurs when gravity pulls the object towards the ground, with only the force on an object being gravity
• Centripetal force pulls objects toward the center, while centrifugal force pulls objects away from the center
• Projectile is any object that can be thrown, hurled, shot, or to land in a target, affected by gravity and inertia
• Sound energy is produced by vibrating bodies that send out compression waves in all directions
• Heat/Thermal energy is the total kinetic and potential energy of the particles in a substance
• Conduction is the best means of energy transfer within a solid or between objects in thermal contact
• Convection is the transfer of thermal energy by the movement of the particles of a liquid or gas, resulting in a stream of fluid called a convection current