(SP1) Motion Flashcards
1
Q
Displacement is…
A
the distance covered in a straight line, and has a direction
2
Q
Vector quantities are… (example)
A
quantities that have both magnitude (size) and direction. For example, velocity
3
Q
Scalar quantities are… (example)
A
quantities that don’t have a direction. For example, speed
4
Q
Formula for Momentum
A
Mass of an object x velocity. It is a vector quantity measured in (kg m/s)
5
Q
Instantaneous speed is…
A
speed a particular point in a journey
6
Q
Average speed is…
A
distance(m) / time taken (s)
7
Q
Distance travelled is…
A
average speed(m/s) x time(s)
8
Q
Acceleration(m/s)^2 is
A
change in velocity(m/s) / time taken(s)= (v-u)/t
9
Q
Deceleration is…
A
when object slows down
10
Q
Different equation for acceleration
A
(final velocity)²-(initial velocity)²=2 x acceleration x distance
v²-u² = 2ad
