forces Flashcards
What is the contact of force?
A force that acts between two objects that are physically touching.
What are noncontact forces?
A force that acts between two objects that are not physically touching.
What is a force?
A force is a push or a pull that acts on an object due to the interaction with another object.
How is a measured force?
Force is measured in newtons (N).
What is magnetite?
The size of a physical quantity.
What is tension?
Tension is a pulling force exerted on an object by a string, rope, or rod.
What is friction?
Friction is a force that acts between two touching surfaces and prevents or resists them from moving against each other.
What is air resistance?
When an object moves through the air it experiences air resistance. This force acts against the direction of movement.
What is upthrust?
Upthrust is an upward force that acts on an object when it is in a fluid (a liquid or gas).
What is thrust?
Thrust is a driving force exerted by an engine to make an object move.
What is a magnetic force?
This force can pull the two objects together or push them apart.
What is a gravitational force?
Gravitational force is experienced by a mass when it is sufficiently close to another mass.
Which of these is not a contact force?
Tension
Gravitational force
Measured quantities can be sorted into two types. What are these types?
Vector or scalar
In which situation is friction a useful force?
Car tires gripping the road
