forces and motion Flashcards
1
Q
DT graph diagonal line
A
steady speed
2
Q
DT graph flat line
A
stopped
3
Q
DT graph upwards curve
A
accelerating
4
Q
Dt graph levelling off curve
A
decelerating
5
Q
DT graph gradient
A
speed
6
Q
Vt graph positive diagonal line
A
acceleration
7
Q
vt graph flat line
A
steady speed
8
Q
vt graph upwards curve
A
increasing acceleration
9
Q
vt graph gradient
A
acceleration
10
Q
vt graph how to find distance travelled
A
area under graph
11
Q
acceleration =
A
change velocity/ time taken
12
Q
final speed² =
A
initial speed² + (2 x acceleration x distance moved)
13
Q
weight=
A
mass x gravitational field strength
14
Q
forces - 7
A
-gravity
-reaction force
-electrostatic force
-thrust
-drag
-lift
-tension
15
Q
what is reaction force
A
acts perpendicular to a surface and away from it
