# Describing Motion Flashcards

1

Q

Velocity

A

Rate of change of displacement

2

Q

Speed

A

Rate of change of distance

3

Q

Acceleration

A

Rate of change of velocity

4

Q

Displacement-time graphs Gradient

A

Velocity

5

Q

Displacement-time graphs Curve

A

Acceleration (use tangent to find velocity)

6

Q

Velocity-time graphs Gradient

A

Acceleration

7

Q

Velocity-time graph straight line

A

constant velocity

8

Q

Velocity-time graph area

A

Displacement

9

Q

Projectiles (time to hit ground)

A

Use suvat

10

Q

Projectiles (Distance from place it fell)

A

use distance = speed x time

speed = in question Time = SUVAT (normally in previous question)

11

Q

Projectiles at angles (how long in air)

A

Use suvat (vertical component as u) double answer because projectiles at an angle are parabolic

12

Q

Projectiles at angles (Maximum height)

A

Use suvat with vertical component as u to work out t

13

Q

Projectiles at angles (How far away does it land)

A

Use distance = speed x time

speed = horizontal component time = suvat with vertical component as u to work out t