Science Q3

Created by

Audrey (o⌒∇⌒o)

Cards (52)

Force 
A push or a pull that can affect an object
Gravity 
A force that pulls or attracts objects towards Earth
Gravitational Force 
The force of attraction between all masses in the universe, especially the attraction of the mass of Earth for bodies near its surface
Mass 
The amount of matter that makes up an object
Weight 
The force of gravity exerted on an object's mass
All objects fall towards the "Center" of Earth
Isaac Newton is the one who discovered gravity
Friction 
A contact force that opposes the motion of an object
Types of Friction
Static Friction
Sliding Friction
Rolling Friction
Static Friction 
The force between the surface of solid objects that keeps the object from moving
Sliding Friction 
The force that opposes the sliding of an object over a surface
Rolling Friction 
The force that opposes the motion of a wheel turning along a surface, which is less than sliding friction
Position 
The location of an object compared to other things
Distance 
A measure of length
Lubricants 
Substances like grease, oil and wax that create less friction by putting a slippery substance on surfaces that touch
Rollers 
Devices found in many objects that reduce friction by reducing contact between moving surfaces
Air resistance 
A force that slows down an object's motion more when a large part of its surface is exposed to air
Energy 
The capacity to do work
Different Forms of Energy
Chemical Energy
Mechanical Energy
Sound Energy
Radiant Energy (Light Energy)
Thermal Energy (Heat Energy)
Electrical Energy
Chemical Energy 
The stored energy in the bonds between atoms
Chemical reactions 
Changes the way atoms are arranged in an object
Mechanical Energy 
The energy of movement or the position of an object
Types of Mechanical Energy
Kinetic Energy
Potential Energy
Kinetic Energy 
The mechanical energy in motion or the energy of moving objects
Potential Energy 
The mechanical energy at rest or the stored energy because of the position or condition of an object
Sound Energy 
The movement of energy through substances, produced when a force causes an object or substance to vibrate
Vibration 
A back and forth motion
Radiant Energy (Light Energy) 
A type of kinetic energy that can take the form of visible light waves or invisible waves like radio waves
Thermal Energy (Heat Energy) 
The internal energy in a substance, the total kinetic energy of atoms and molecules that are constantly in motion
Processes of Heat Transfer
Conduction
Convection
Radiation
Conduction 
Heat is transferred from molecule to molecule until it is spread through the material, when two materials are in contact
Convection 
A process of heat transfer by the movement of liquid or gas
Radiation 
A transfer of energy through matter or space as radiant energy or electromagnetic waves
Electrical Energy 
The energy carried by moving electrons in an electric conductor
Energy Transformation 
The ability to change from one form to another
Energy Conversion 
The changes in forms of energy
Nuclear Energy 
The energy derived from splitting and combining the nucleus of an atom, which produces a high amount of energy
Simple Machine 
Devices used to assist people in getting work done faster and easier
Types of Simple Machines
Levers
Wheel and Axle
Pulley
Inclined Plane
Wedge
Screw
Lever 
A bar or stick which has a pivot point known as a fulcrum, that helps lift objects with less effort