Science physics forces Flashcards
Define a force
A force is a push or a pull that causes motion
State the unit we use to measure forces
Forces are measured in Newton (N)
Describe the difference between a
contact and a non-contact force
A contact force acts when objects are touching.
A non-contact force can act from a distance.
Define the term resultant force
A resultant force is the overall force that acts on an object
Describe what friction does.
Friction makes it more difficult for objects to move
What is meant by an independent
variable?
The variable that is changed
What is meant by a dependent variable?
The variable that is measured
What is meant by mass?
Mass is the amount of matter an object is
made out of
What is meant by weight?
Weight is the force that acts on mass due to
gravity
What is meant by tension?
Forces exerted on an object that cause it to
change shape
Define the term moment
A moment is the turning effect of a force
What is meant by the pivot?
A pivot is the point around which the object
can rotate or turn
