Forces and Speed Topic Revision Flashcards
(21 cards)
What is a force?
A force is a push or pull.
What is the name for a unit of force?
Newton
What is air resistance?
Air resistance is a force that act on objects moving through air by resisting movement.
What is upthrust?
Upthrust is a push force that pushes an object up while it is inside water.
What is equilibrillium?
Balanced forces.
What is compress?
To squash into a smaller space.
What is a contact force?
It is a force that acts when an object is in contact with a surface, water or air.
What does deform mean?
To change shape.
What does drag force mean
The force acting on an object moving through air or water that causes it to slow down.
Which force acts on objects by trying to keep them in their original form?
Tension
What are resistive forces?
Any forces that act to slow down a moving object.
What is the calculation for speed?
Distance/Time
What is a non-contact force?
A force that is magnetic, electrostatic, or gravitational and acts between objects not in contact.
What is resultant force?
The overall amount of force acting on an object.
What is Hooke’s law?
The law that says that if you double the force on an object the extension will double.
What is the reaction force?
It is the support force provided by a solid surface like a floor.
What is weight?
Weight is the force of the earth on an object due to its mass.
What does streamlined mean?
Streamlined means for an object to be shaped to reduce resistance from air or water.
What is gravity.
Gravity is a non-contact force that acts between 2 masses
What is a driving force?
A force that is pushing or pulling something.
What is an interaction pair?
It is when to objects interact there is a force on one but in opposing directions.
