2.1 Flashcards
Centre of gravity
An imaginary point where you can imagine gravity as being applied to an object.
Forcemeter/spring scale
An instrument with a helical spring that is used to measure forces.
Elastic deformation
Deformation in which the object regains its original shape once the force is no longer being exerted.
Force
A push or pull on a object.
Force scale
Ratio that you use to draw forces.
Gravity
The force with which the Earth attracts you and all the objects around you.
Magnetic force
A force that acts between the two poles of a magnet. It can be an attraction or repulsion.
Muscle strength
A force that arises when the muscles in a body contract.
plastic deformation
Deformation in which the object remains deformed after a force has been exerted on it.
Resilience
A force that arises when you extend or compress a springy material.
tensile force, tension
A force that arises in a rope if it is pulled at both ends.
vector
Way of representing the size, direction and point of application of a force as an with three parts.
point of application
The exact spot on an object where the force is applied.
Magnitude
Size or strength.
Direction
The line along which the force is acting.
