FM1 - Velocity and acceleration Flashcards Preview

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Flashcards in FM1 - Velocity and acceleration Deck (21):
1

What do speed and velocity both show and what are they measured in?

How fast an object is going

m/s

2

What is the difference between speed and velocity?

Velocity shows how fast your going as well as the direction it is going in

3

What is the equation for average speed?

Average speed = distance/time

4

What is the triangle formula?

D/s x t

6

What is acceleration?

How quickly velocity changes

7

What can the change in velocity be?

Change in speed or change in direction

8

What is the formula and unit for acceleration?

Acceleration = Change in velocity/ time taken

m/s2 (squared)

9

On a distance time graph, what does the gradient represent?

Speed - the steeper the diagonal line, the faster it is going

10

On a distance time graph, what does a flat line represent?

Where it has stopped

11

On a distance time graph, what do curves represent?

Acceleration or deceleration

12

On a distance time graph, a steepening curve means?

Its speeding up (increasing gradient)

13

On a distance time graph, a levelling off curve means?

Its slowing down (decreasing gradient)

14

On a distance time graph, what does a downhill section represent?

Going back to the starting point

15

On a velocity time graph, the gradient represents what?

Acceleration

16

On a velocity time graph, a flag section/line represents?

A steady speed

17

On a velocity time graph, the steeper the graph...

The greater the acceleration/ deceleration

18

On a velocity time graph, uphill sections (/) are?

Acceleration

19

On a velocity time graph, downhill sections (\) are?

Deceleration

20

On a velocity time graph, what does a curve represent?

Changing acceleration

21

Can you work out the total distance traveled on a velocity time graph?

Yes - the are under any section of the graph is equal to the distance travelled in that time taken

22

What is the triangle formula?

(v-u)/a x t