Forces Flashcards
What is a scalar quantity
Only has size (magnitude)
What is a vector quantity
Has both size and direction
What is a force
Push or pull that acts on an object due to interactions with another object
Is force vector or scalar quantity
Vector
What is a contact force
When objects are physically touching eg friction, tension, normal contact force
What is a non contact force
When objects are physically separated eg gravitational
What is the same about the interaction pair of forces when two objects interact with each other
The forces are the same size
What is different about the interaction pair of forces when two objects interact with each other
Forces are in opposite directions
What is the size of the resultant force on an object due to gravity
Weight
What is the name for the force acting on an object due to gravity
Weight
What instrument can be used to measure the weight of an object
Calibrated spring balanced
What is the center of mass
The point through which the weight of an object can be considered to act
What is elastic deformation
When an object can go back to its original shape and size when deforming forces are removed
What is inelastic deformation
An object does not original shape and size when defining forces are removed
How do you find the spring constant from a force extension graph of a spring
Find the gradient of the straight line section
