Physics Mock Flashcards
What’s a scaler and what unit does it measure it?
-Size only
-measures in m/s (distance)
What is vector and what unit does
-Size and direction
-measure in m/s(mini2) -acceleration
What does the term displacement mean?
Distance but with direction
What was newton 1st law?
If the forces of an object is balanced the object is stationary (still)
What does the term friction mean?
When 2 object slide thought each other
What’s the equation that link with velocity acceleration and time
a=v-u
—-——
t
What is the equation link with time speed and distance
Speed=distance
——————
Time
Give 2 example of a scaler quantities
Distance
Mass
Temperature
Height
Speed
Time
Give 2 example of vector quantities
Weight
Displacement
Force
Velocity
What does the term resultant force mean?
Multiple force acting on a object at once
What does the term braking distance mean?
Distance of a vehicle travels in the time after the driver has applied a break.
What does the term stopping distance mean?
When the driver must bring the vehicle to a stop in the shortest distance possible
What does the term Reaction time
amount of time that takes places between when we perceive something to when we respond to it
Give 2 factors that can affect the reaction time
Tiredness
Drugs
Distraction
Alcohol
Give a reason why a driver applied breaking distance?
Poor road
Poor vehicle condition
More mass is in the vehicle
Give a type of energy stores
Magnetic
Internal
Chemical
Kinetic
Nuclear
Gravitational potential
What does the term energy efficiency mean?
transferred into useful called efficiency