Contact Force - A force that acts when an object is in contact with a surface, air, or water, Friction - The force that resists movement because of contact between surfaces, Air resistance  - The force on an object moving through the air that causes it to slow down(also known as drag)., Gravity ​ - A non-contact force that acts between two masses., Non-contact force - A magnetic, electrostatic, or gravitational force that acts between objects not in contact, Deform  - To change shape, Compress​ - To squash into a smaller space, Stretch - An object can be stretched if you exert a force on it., Extension  - The amount by which an object gets longer when a force is applied, Elastic limit - The point beyond which a spring will not return to its original length when the force is removed., Hooke's Law​ - A law that says if you double the force on an object the extension will double, Lubrication  - A substance that reduces friction between surfaces when they rub together, Water resistance  - The force of an object moving through water that causes it to slow down (also known as drag), Streamlined - Shape to reduce resistance to motion from air or water, Magnetic force - The force between two magnets, or a magnet and a magnetic material, Electrostatic forces - The force acting between two charged objects, Weight - The force of the Earth on an object due to its mass,

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