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section 1 Flashcards

(16 cards)

1
Q

what are the two types of quantities and what makes them different

A

vector quantity - has both a direction and magnitude (size)
scalar quantity - only has a magnitude (size)

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2
Q

list 6 vector quantities

A

force, velocity, displacement, weight, acceleration, momentum

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3
Q

list 6 scalar quantities

A

speed, distance, mass, energy, temperature, time

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4
Q

state the formula to work it out distance travelled (include units)

A

distance travelled (m) = (average) speed (m/s) x time (s)

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5
Q

state the typical speed of walking in m/s and km/h

A

1.4 m/s, 5 km/h

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6
Q

state the typical speed of running in m/s and km/h

A

3 m/s, 11km/h

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7
Q

state the typical speed of cycling in m/s and km/h

A

5.5 m/s, 20 km/h

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8
Q

state the typical speed of cars in a built up area in m/s and km/h

A

13 m/s, 47 km/h

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9
Q

state the typical speed of aeroplanes in m/s and km/h

A

250 m/s, 900km/h

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10
Q

state the typical speed of car and a motorway in m/s and km/h

A

31 m/s, 112km/h

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11
Q

state the typical speed of trains in m/s and km/h

A

up to 55 m/s, 200km/h

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12
Q

state the typical speed range of wind speed in m/s

A

5 - 20m/s

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13
Q

state the typical speed range of wind speed in m/s

A

5 - 20 m/s

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14
Q

state the speed of sound in air in m/s

A

340 m/s

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15
Q

state the typical speed of ferries in m/s and km/h

A

15 m/s, 54 km/s

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16
Q

state the equation for acceleration, include units of measurements

A

a (m/s2) = v-u (m/s) / t (s)
acceleration = final velocity - initial velocity / time