Patterns And Relationships Flashcards
(19 cards)
Speed
The distance traveled per unit time is known as speed.
Velocity
Velocity of an object is the distance it travels per unit time, in a given direction.
Acceleration
The change in velocity per second is known as the acceleration of a body. It uses m/s squared.
Stationary
On a distance-time graph, time is increasing to the right, but it’s distance does not change. It is stationary.
Force
Forces are what makes thing move, like a push or pull.
Non contact force
Gravity, magnetic force, electrical force.
Contact forces
Friction, tension, air resistance, applied force (push), spring force (twist)
Friction
Friction is the force that resists things rubbing against each other.
Air resistance
Air resistance is the force that slows things down when they are moving
Buoyancy
Buoyancy is the force that pushes thing 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 upon the object.
Proportional relationship
Results will often show patterns. If you increase one variable- the other will increase or decrease in response.
Graph
Good ways to analyse results and discover patterns. They can show a general increase or decrease, a curve or a straight line.
Anomaly
Results that don’t follow a trend. May be due to human error.
Directly proportional
Results can increase proportionately (by the same amount). A good example is hooke’s law.
Elastic behaviour
When a material returns to its original size and shape when you remove the forces stretching or deforming it, we say that the. Material is demonstrating elastic behaviour.
Plastic material
Material that stays deformed after you have taken its force away. If deformation remains after the forces are removed that is a sign of plastic behaviour.
Hookes law
The amount the string stretches is directly proportional to the amount of force you apply to it.
