2.1 Flashcards
a change in an objects position relative to a reference point
motion
distance and direction of an objects change in position from the starting point
displacement
distance an object travels per unit of time
speed
how do you calculate total distance?
add all your distances together
what needs to be included when you are calculating displacement
distance and direction
true or false: Displacement can be calculated in the same direction
true
true or false: You subtracts displacement if they are going in the opposite direction?
true
true or false: You cannot directly calculate displacement if they are not the same or in opposite direction
true
what is the equation for speed
speed= d(distance)/ t(time)
What is the difference between speed and velocity
velocity has a direction
Is it possible to have a constant speed with a change in velocity
yes
how do you calculate momentum
momentum= mass x velocity: p=mv
What are the units for momentum
kg*m/s direction
What is the unit for mass
kg
What are the units for velocity
m/s direction
