Patterns And Relationships Flashcards
(19 cards)
Velocity
Velocity of an object is the distance it travels per unit time, in a given direction
Speed
The distance travelled by unit time
Acceleration
The change in velocity per second metre/per second squared
Stationary
On a distance time graph, time is increasing to the right, but it’s distance does not change.
Force
What makes things move, like a push or a pull
Non- contact force
Gravity
Magnetic force
Electrical force
Contact force
Friction
Tension (pull)
Air resistance
Applied force (push)
Spring force (twist)
Friction
It is the force that resists things rubbing against each other
Air resistance
It is the force that slows things down when they are moving
Buoyancy
It is the force that pushes things up in water
Mass
The mass of an object is the amount of matter that is in the object
Weight
The weight of an object is the force of gravity that acts on that object
Proportional relationship
Results will often show patterns. If you increase one variable - the other will increase or decrease in response
Graphs
are a good way to analyse results and discover pattern
Anomaly
Graphs can also show results which do not follow follow a trend
Directly proportional relationship
Results may increase proportionately ( by the same amount )
Elastic behaviour
If a material returns to its original size and shape when you remove the forces stretching or deforming it ( revers able deformation ) , we say that the material is demonstrating….
Plastic behaviour
A plastic ( or inelastic ) material is one that stays deformed after you have taken the force away. If deformation remains after the forces are removed then it is a sign of….
Hookes law
The amount if a spring stretches is proportional to the amount of force applied to it
