forces and motion Flashcards
(16 cards)
What is meant by a scalar quantity, give 2 examples
a scalar quantity is a magnitude. it can be described fully with a single numerical value e.g speed, time, mass, energy
explain what is meant by a vector quantity
a vector quantity has both a magnitude and a direction e.g force, velocity, displacement, momentum, moment
state an equation linking distance moved, time taken and average speed
average speed is equal to distance over time 0r v=d/t
which property of a distance time graph can be used to calculate speed
gradient or slope
what is meant by acceleration, give its unit
acceleration is the change in velocity per unit of time. SI unit = m/s squared
which property of a velocity time graph can be used to calculate distance travelled
area under the graph
which property of a velocity time graph can be used to calculate acceleration
gradient or slope
