SP1: Vectors and Scalars Flashcards
1
Q
what’s a vector
A
anything with both magnitude and direction
2
Q
what’s a scalar
A
anything whith just magnitude
3
Q
4 types of scalars
A
time,energy,mass,distance
4
Q
4 types of vectors
A
displacement,force,magnitude,friction
5
Q
how to find speed
A
speed=distance/time s=d/t
6
Q
how to find acceleration (with time)
A
acceleration= final vel-starting vel/time a= (v-u)/t
7
Q
how to find acceleration (with distance)
A
v2 - u2 = 2ax
8
Q
what does the gradient mean in a distance/time graph
A
it represents the speed
9
Q
what does the gradient mean in a velocity/time graph
A
represents the acceleration
10
Q
average speeds of : walking, running,cars,wind,trains,sound in air
A
walk= 5 km/h r= 11 km/h c= 47 km/h wind= 5-20 m/s trains= 200 km/h s= 340 m/s
11
Q
what does a curve mean in a graph
A
acceleration