Physics Flashcards
what is a vector
a quantity that has size and a direction
what is a scalar
a quantity that has only size but the direction isnt specified
examples of a vector
force, velocity, acceleration
examples of scalar
mass,time,speed
what is a gradient
a measure of how steep a line is
what does terminal mean
final
what is an independent variable
something you change
what is a dependent variable
thing you measure
what is the control variable
thing you keep the same
what does S stand for in SLAAP
scale
what does L stand for in SLAAP
line must be single and thin
what does both A’s stand for in SLAAP
axis labelled with units
what does P stand for in SLAAP
points will be checked
what is elastic limit
the point beyond which, a material will not return to its orginal shape
example of what will obey hookes law
a spring
what does hookes law describe
relationship between the force applied and the spring’s extension or compression.
what is braking distance
how far the car travels after the brake is applied until the car stops
what is thinking distance
how far the car travels between the point the driver realises they have to stop and when they start braking.
if there is an icy road will braking distance increase or decrease
increase
if ther mass of the car is big will braking distance increase or decrease
increase
if there is morespeed will braking distance increase or decrease
increase
if there is worn brakes will braking distance increase or decrease
increase
if there is alcohol in the drivers body will thinking distance increase or decrease
increases because it decreases reaction time
if there is drugs in the drivers body will thinking distance increase or decrease
caffeine will decrease thinking distance
what is the equation for stopping distnace
thinking distance + braking distance= stopping distance
