Forces and Speed Flashcards
(42 cards)
I am sat on a chair, what force is pushing up on me (stopping me from sinking)?
Reaction Force
What force acts on an object as it moves through the air/water and makes it slow down?
Air Resistance (air) /Drag (air/water)
Balanced Forces
Forces acting on an object that are the same size but act in different directions
Compress
To squash into a smaller space
What are Contact Forces
Forces that act when the object is in contact with a surface, air or water
Deform
To change shape
What force pushes or pulls something?
Driving Force
What is the name of the point when a spring will not return to its original length when force is removed?
Elastic Limit
The force acting between two charged objects is called what?
Electrostatic Force?
Equilibrium
Balanced
Extension
The amount by which an object gets longer when force is applied
Field
A region where something feels a force
Friction
The force that resists movement because of contact between surfaces
Gravity
A non-contact force that acts between two masses
Hooke’s Law
The law that says that if you double the force on an object the extension will double
(Extension = Force × Spring Constant)
There is a direct proportionality between extension and input force
Interaction Pair
When two objects interact there is a force on each one that is the same size but acts in opposing directions
Kilogram (kg)
A unit of mass (1000g)
Lubrication
A substance that reduces friction between surfaces when they rub together
Magnetic Force
The force between two magnets, or a magnet and a magnetic material
Mass
The amount of matter (stuff 😊 ) an object is made up of
Newton (N)
The unit of force, symbol N
Newton meter
A piece of equipment used to measure weight in newtons
Non-contact Force
A magnetic, electrostatic, or gravitational force that acts between objects that aren’t in contact
Pull
A type of force