Studied by 20 people

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Hint

1

examples of scalars

distance, mass, speed, energy, time, volume

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2

examples of vectors

displacement, velocity, acceleration, force, position

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3

what are the SI units

length: metres (m) time: seconds (s) mass: kilograms (kg)

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4

what is the difference between distance and displacement

Distance is the total length of the actual path between two points. Displacement is the length and direction of a straight line between starting and ending points.

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5

what is speed

The distance an object travels in a given time interval

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6

what is average speed

distance travelled along an objects path divided by the time it takes to travel that distance

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7

what is velocity

how far an object has been displaced in a given time interval

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8

what is average velocity

displacement of an object divided by the time it takes to travel this distance

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9

what is the velocity equation

velocity = displacement/time

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10

what is the speed equation

speed = distance/time

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11

what is instantaneous velocity

the velocity of an object in motion at a specific point in time

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12

what is acceleration

The rate at which velocity changes

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13

what is average acceleration equation

change in velocity/change in time

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14

what is the acceleration equation

a=vf-vi/t

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15

displacement/time graphs show: (directly, slope, horizontally straight line, area under graph)

directly: displacement at given time slope: denotes object's velocity, straight = constant horizontally straight line: v = 0m/s area under graph: n/a

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16

velocity/time graphs show: (directly, slope, horizontally straight line, area under graph)

directly: velocity at given time slope: denotes the object's acceleration horizontally straight line: a = 0m/s area under the graph: distance the object has moved from origin

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17

what is a frame of reference

a standard relative to which motion and rest may be measured

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18

what is the formula for relative velocity? (same for 1D and 2D)

Vr = Vo - Vd

where r is the relative velocity of the observer relative ro the distance object (o relative to d)

o is the observer

d is the distant object

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19

list the suvat equations?

s = ut + 1/2*at^2 v = u + at v^2 = u^2 + 2as

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20

what are the suvat equations used for

when a is constant and v is changing

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21

what does suvat stand for

S - displacement U - initial velocity V - final velocity A - acceleration T - time

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