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Reaction time involves...
The length of time taken for a person or system to respond to a given stimulus or event
How hard you press on the brake when you see a kangaroo jump out in front of you
The distance that you travel while you are reacting to a stimulus
The speed at which you are travelling at
Reaction distance is the distance travelled while reacting to the stimulus or event.
The formula to calculate Reaction Time is...
d=v x t
t= the sq root of 2 x d/981
t=d/981 x 2
What is the key bodily function that triggers a reaction to a stimulus?
Reflexes and Reaction Time
Distance and Displacement are similar, but different. What is the key difference between the two?
Distance is for year 8s and Displacement is for smart year 10s
Direction provides the direction and the distance
Displacement provides the direction and the distance
Displacement is when you are lost and need to work out how to get home
When looking at displacement and direction, one is a scalar quantity and one is a vector quantity. What does this mean?
One is cooler than the other
One is more informative than the other, giving size and direction
One is less important than the other
Displacement is a scalar quantity
If Miss Humphries walked from her office to the staff room to get a coffee and back to her desk what would her displacement be?
20m there and 20m back
If Miss Humphries drove home from school in a northerly direction for 50 kms, what would her distance and displacement be?
Distance is irrelevant
The correct formula to calculate distance is...
d= v x t
a= d / t
When relating to physics, speed is refered to as...
Measure of how quickly something moves.
How slow the internet is
Displacement and Distance
When converting from m/s to km/hr the conversion rate is..
Multiply by 3.6
Divide by 3.6
What is the difference between speed and velocity.
They're exactly the same thing
Speed is basic and velocity is not
Speed is a scalar quantity and velocity is a vector
Speed is displacement
When filling out a velocity triangle, the formula at the top of the triangle is..
d= v x t
v= d/ t
t= d/ v
The quantities needed to calculate velocity are...
distance and time
time and velocity
distance and velocity
time and displacement
To calculate acceleration, you need to calculate the change in speed divided by the amount of time it took.
Miss Humphries is the best