9Ic – Speed key words Flashcards

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1
Q

mean speed

A

The total distance something travels divided by the total time taken is the mean (or average) speed for a journey.

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2
Q

The total distance something travels divided by the total time taken is the mean (or average) speed for a journey.

A

mean speed

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3
Q

distance-time graph

A

A graph that shows how far and how fast something travels during a journey. Steeper lines on the graph show faster speeds.

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4
Q

A graph that shows how far and how fast something travels during a journey. Steeper lines on the graph show faster speeds.

A

distance-time graph

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5
Q

kilometres per hour (km/h)

A

Unit for speed when the distance is measured in kilometres and the time is measured in hours.

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6
Q

Unit for speed when the distance is measured in kilometres and the time is measured in hours.

A

kilometres per hour (km/h)

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7
Q

miles per hour (mph)

A

Unit for speed when the distance is measured in miles and the time is measured in hours.

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8
Q

Unit for speed when the distance is measured in miles and the time is measured in hours.

A

miles per hour (mph)

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9
Q

metres per second (m/s)

A

Unit for speed when the distance is measured in metres and the time is measured in seconds.

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10
Q

Unit for speed when the distance is measured in metres and the time is measured in seconds.

A

metres per second (m/s)

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11
Q

The speed of one object compared to another – both objects could be moving.

A

The speed of one object compared to another – both objects could be moving.

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12
Q

speed

A

How fast something is moving. Often measured in metres per second (m/s), miles per hour (mph) or kilometres per hour (km/h).

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13
Q

How fast something is moving. Often measured in metres per second (m/s), miles per hour (mph) or kilometres per hour (km/h).

A

speed

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14
Q

gradient

A

A way of describing the steepness of a line on a graph in numbers. It is calculated by taking the vertical distance between two points and dividing by the horizontal distance between the same two points.

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15
Q

A way of describing the steepness of a line on a graph in numbers. It is calculated by taking the vertical distance between two points and dividing by the horizontal distance between the same two points.

A

gradient

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