Forces And Speed Key Words Flashcards
(32 cards)
Air Resistance
The force on an object moving through the air that causes it to slow down (also known as drag)
Balanced
Forces acting on an object that are the same size but act in opposite directions.
Compress
To squash into a smaller space.
Contact force.
A force that acts when an object is in contact with a surface, air or water.
Deform
To change shape.
Drag force
A force acting on an object moving through air or water that causes it to slow down.
Driving force
The force that is pushing or pulling something.
Elastic limit
The point beyond which a spring will not return to its original length when the force is removed.
Electrostatic force
The force acting between two charged points
Equilibrium
Balanced.
Extension
The amount by which an object gets longer when a force is applied
Field
A region where something feels a force.
Friction
The force that resists movement because of contact between surfaces
Gravity
A non-contact force that acts between two masses
Hooke’s law
That law that says that if you double the force on an object the extension will double.
Interaction pair
When two objects interact there is a force on each one that is the same size but in opposing directions
Kilogram (Kg)
A unit of mass, symbol kg
Lubrication
A substance that reduces friction between surfaces when they rub together
Magnetic force
A force between two magnets, or a magnet and a magnetic material
Mass
The amount of matter (stuff) a thing is made up of
Newton (N)
The unit of force, symbol (N)
Newton meter
A piece of equipment used to measure weight in Newton’s
Non-contact force
A magnetic, electrostatic, or gravitational force that acts between objects not in contact
Pull
A type of force
