FM1 - Velocity and acceleration Flashcards

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1
Q

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

A

How fast an object is going

m/s

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2
Q

What is the difference between speed and velocity?

A

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

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3
Q

What is the equation for average speed?

A

Average speed = distance/time

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4
Q

What is the triangle formula?

A

D/s x t

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6
Q

What is acceleration?

A

How quickly velocity changes

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7
Q

What can the change in velocity be?

A

Change in speed or change in direction

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8
Q

What is the formula and unit for acceleration?

A

Acceleration = Change in velocity/ time taken

m/s2 (squared)

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9
Q

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

A

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

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10
Q

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

A

Where it has stopped

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11
Q

On a distance time graph, what do curves represent?

A

Acceleration or deceleration

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12
Q

On a distance time graph, a steepening curve means?

A

Its speeding up (increasing gradient)

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13
Q

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

A

Its slowing down (decreasing gradient)

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14
Q

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

A

Going back to the starting point

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15
Q

On a velocity time graph, the gradient represents what?

A

Acceleration

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16
Q

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

A

A steady speed

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17
Q

On a velocity time graph, the steeper the graph…

A

The greater the acceleration/ deceleration

18
Q

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

A

Acceleration

19
Q

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

A

Deceleration

20
Q

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

A

Changing acceleration

21
Q

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

A

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

22
Q

What is the triangle formula?

A

(v-u)/a x t