Section 1 Vocabulary (p44) Flashcards
What is motion?
A change in an object’s position relative to a reference point.
What is an object’s displacement?
The distance and direction of the object’s change in position.
What is speed?
The distance an object travels per unit of time.
How do you calculate displacement?
Distance with a direction.
True or False
Displacement can be calculated in the same direction?
True
True or False
You subtract 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 directions?
True
What is the equation for speed?
speed(in meters/seconds) = distance (in meters)
—————————-
time (in seconds)
d
s = –
t
What is the difference between speed and velocity?
The difference is that velocity has a direction.
Is it possible to have a constant speed with a change in velocity?
Yes, it is possible
How do you calculate momentum?
momentum = p
p = mv
What are the units for momentum?
kg’‘m/s direction
What is the unit for mass?
kg
What is the unit for velocity?
m/s direction
