Forces and motion (copy)

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What is the word equation for speed?

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36 Terms

1

What is the word equation for speed?

Speed=distance/time

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2

What is another word for speed?

Velocity

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3

What is the unit for speed?

m/s

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4

What is the unit for distance?

Metres

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5

What is the unit for time?

Seconds

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6

What is the symbol equation for speed?

v=s/t

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7
<p>What does the <span style="color: red">red</span> line mean?</p>

What does the red line mean?

Steady speed

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8
<p>What does the <span style="color: blue">blue</span> line mean?</p>

What does the blue line mean?

Stationary

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9
<p>What does the <span style="color: green">green</span> line mean?</p>

What does the green line mean?

Faster - steady speed

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10
<p>What does the <span style="color: purple">purple</span> line mean? </p>

What does the purple line mean?

Returning to start

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11

What is the word equation for acceleration?

Acceleration=change in velocity/time taken

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12

What is the symbol equation for acceleration?

a=(v-u)/t

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13
<p>What does A mean?</p>

What does A mean?

Acceleration

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14
<p>What does B mean?</p>

What does B mean?

Stationary

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15
<p>What does C mean?</p>

What does C mean?

Acceleration

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16
<p>What does D mean?</p>

What does D mean?

Decelleration

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17

What is the unit for acceleration?

m/s2

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18

How do you work out the distance traveled from a velocity-time graph?

Area under the velocity time graph

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19

What is displacement?

Distance with direction

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20

What is the equation for weight?

Weight = mass x gfs

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21

What are the variables for the toy car experiment?

  • Independent - Ramp steepness

  • Dependent - Speed

  • Control - Distance, weight of car, material of ramp

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22
<p>What does this line mean?</p>

What does this line mean?

Increasing acceleration

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23
<p>What does this line mean?</p>

What does this line mean?

Constant velocity

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24
<p>What does this line mean?</p>

What does this line mean?

Positive constant acceleration

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25
<p>What does this line mean?</p>

What does this line mean?

Decreasing acceleration

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26

What is the equation for force?

force=mass x area

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27

What is force?

Push or a pull that acts on an object

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28

What is force measured in?

Newtons

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29

What can a force cause an object to do?

  • Change shape

  • Change its motion

  • Change its state of rest

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30

Give an example of contact forces:

  • Friction/air resistance (drag)

  • Upthrust

  • Tension

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31

Give an example of non-contact forces:

  • Weight

  • Magnetic

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32

What is meant by mass?

The amount of matter in a substance/object

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33

What are the variables for Hooke’s Law practical?

  • Independent - How many weights

  • Dependent - Spring extension

  • Control - Original spring length, material of spring

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34

What makes stopping hard? (braking time/distance)

  • Tyres

  • Brakes

  • The road conditions

  • Steepness

  • Wind

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35

What makes stopping hard? (braking time, increases thinking distance+braking distance)

Speed

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36

What makes stopping hard? (thinking time/distance)

  • Alcohol

  • Drugs

  • Tiredness

  • Age

  • Distractions

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