Topic 2 ๐๏ธโโ๏ธ๐ฅ Flashcards
What is a vector?
Magnitude and direction
What is a scalar quantity?
Magnitude only
Give an example of a vector?
Velocity, displacement, momentum, force, acceleration
Give an example of a scalar quantity?
Speed, distance, energy
Complete the equation.
Velocity =
Displacement / Time
Complete the equation.
Acceleration =
Change in Velocity / Time
Complete the equation.
Average Speed =
Distance / Time
Complete the equation.
Distance travelled =
Average Speed x Time
What is the typical walking speed?
1.5 m/s
What is the typical running speed?
3 m/s
What is the typical cycling speed?
6 m/s
What is the typical speed of sound?
330 m/s
What experiment do you do to measure human reaction times?
Ruler Drop
What is the typical speed for the ruler drop experiment?
0.2 - 0.9 seconds
What do light gates remove uncertainty about?
Remove uncertainty about measuring time as no human reaction time
In velocity time graphs what does the gradient =
Acceleration
In what graph is the area of the shape underneath the graph equal to the distance?
Velocity time graphs