Contact and Non-Contact Forces Flashcards
Forces (12 cards)
What is a vector quantity?
A vector quantity has both a magnitude and a direction.
Examples of vector quantities include force, velocity, displacement, acceleration, and momentum.
What are scalar quantities?
Scalar quantities have only magnitude and no direction.
Examples of scalar quantities include speed, distance, mass, temperature, and time.
How are vectors typically represented?
Vectors are usually represented by an arrow, where the length of the arrow indicates the magnitude and the direction of the arrow indicates the direction of the quantity.
What is the difference between speed and velocity?
Speed is a scalar quantity, while velocity is a vector quantity.
Both bikes can travel at the same speed but have different velocities due to traveling in different directions.
What is a force?
A force is a push or a pull on an object caused by its interaction with something.
What are contact forces?
Contact forces are forces that require two objects to be touching for the force to act.
Examples include friction, air resistance, tension in ropes, and normal contact force.
What are non-contact forces?
Non-contact forces are forces that do not require objects to be touching for the force to act.
Examples include magnetic force, gravitational force, and electrostatic force.
What is an interaction pair?
An interaction pair consists of two equal and opposite forces that act on two interacting objects.
True or False: The Sun and the Earth are attracted to each other by a gravitational force.
True
When a chair exerts a force on the ground, what type of force is this?
This is a contact force.
What happens when two objects interact in terms of force?
A force is produced on both objects, resulting in equal but opposite forces.
Fill in the blank: Equal but opposite forces are felt by both the ______ and the ______.
chair; ground
