Forces acting on an object Flashcards
What is a force?
Push or pull; any use of energy to move an object
Are forces scalar or vector?
Vector as they have a magnitude and direction
What are the two non-contact forces?
Gravity and electromagnetism
What is the formula to calculate force?
Mass*acceleration
What is force measured in?
Newtons
What is a balanced force?
Two forces equal in size but act in opposite directions
Is a balanced force necessarily stationary?
No, they can be present when the object is at a constant velocity
Is there a change in motion with a balanced force?
No
What is a change in motion caused by?
An unbalanced force acts on the object
Unbalanced force are two forced acting on an object but not the same size
What is the net force?
Sum of all the forces acting on an object
What is a free body diagram?
A diagram that shows all the forces acting on an object
